Major release : otp_src_17.0
Build date : 2014-04-07
17.0 is a major new release of Erlang/OTP.
You can download the full source distribution from
http://www.erlang.org/download/otp_src_17.0.tar.gz
http://www.erlang.org/download/otp_src_17.0.readme (this file)
Note: To unpack the TAR archive you need a GNU TAR compatible program.
For installation instructions please read the README that is part of
the distribution.
The Windows binary distribution can be downloaded from
http://www.erlang.org/download/otp_win32_17.0.exe
http://www.erlang.org/download/otp_win64_17.0.exe
On-line documentation can be found at http://www.erlang.org/doc/.
You can also download the complete HTML documentation or the Unix manual files
http://www.erlang.org/download/otp_doc_html_17.0.tar.gz
http://www.erlang.org/download/otp_doc_man_17.0.tar.gz
We also want to thank those that sent us patches, suggestions and bug reports,
The OTP Team
--- HIGHLIGHTS ----------------------------------------------------------
OTP-11334 == erts ose kernel ==
Erlang/OTP has been ported to the realtime operating system
OSE. The port supports both smp and non-smp emulator. For
details around the port and how to started see the User's
Guide in the ose application.
Note that not all parts of Erlang/OTP has been ported.
Notable things that work are: non-smp and smp emulators, OSE
signal interaction, crypto, asn1, run_erl/to_erl, tcp, epmd,
distribution and most if not all non-os specific
functionality of Erlang.
Notable things that does not work are: udp/sctp, os_mon,
erl_interface, binding of schedulers.
OTP-11368 == erts kernel ==
Add the {active,N} socket option for TCP, UDP, and SCTP,
where N is an integer in the range -32768..32767, to allow a
caller to specify the number of data messages to be delivered
to the controlling process. Once the socket's delivered
message count either reaches 0 or is explicitly set to 0 with
inet:setopts/2 or by including {active,0} as an option when
the socket is created, the socket transitions to passive
({active, false}) mode and the socket's controlling process
receives a message to inform it of the transition. TCP
sockets receive {tcp_passive,Socket}, UDP sockets receive
{udp_passive,Socket} and SCTP sockets receive
{sctp_passive,Socket}.
The socket's delivered message counter defaults to 0, but it
can be set using {active,N} via any gen_tcp, gen_udp, or
gen_sctp function that takes socket options as arguments, or
via inet:setopts/2. New N values are added to the socket's
current counter value, and negative numbers can be used to
reduce the counter value. Specifying a number that would
cause the socket's counter value to go above 32767 causes an
einval error. If a negative number is specified such that the
counter value would become negative, the socket's counter
value is set to 0 and the socket transitions to passive mode.
If the counter value is already 0 and inet:setopts(Socket,
[{active,0}]) is specified, the counter value remains at 0
but the appropriate passive mode transition message is
generated for the socket.
Thanks to Steve Vinoski
OTP-11594 == asn1 ==
The OCTET STRING and BIT STRING types now have a more natural
mapping to Erlang types (binary and bitstring, respectively),
which is more efficient and will avoid useless conversions
between lists and binaries/bitstrings.
This is an incompatible change. To revert to the old mapping
to support existing applications, use the legacy_erlang_types
option.
Impact: There is a potential for better performance, as it is
now possible to avoid conversions between lists and binaries
both in the generated ASN.1 encode/decode code and in the
application itself.
OTP-11615 == otp ==
A new version scheme for OTP as well as all applications in
OTP has been introduced. The version scheme is described in
the versions chapter of the system principles guide in the
OTP documentation.
OTP-11616 == erts stdlib hipe dialyzer compiler typer ==
EEP43: New data type - Maps
With Maps you may for instance:
-- M0 = #{ a => 1, b => 2}, % create associations
-- M1 = M0#{ a := 10 }, % update values
-- M2 = M1#{ "hi" => "hello"}, % add new associations
-- #{ "hi" := V1, a := V2, b := V3} = M2. % match keys with
values
For information on how to use Maps please see the Reference
Manual.
The current implementation is without the following features:
-- No variable keys
-- No single value access
-- No map comprehensions
Note that Maps is experimental during OTP 17.0.
OTP-11777 == erts ==
Halfword emulator is marked as deprecated. It still works as
before but is planned to be removed in a future major
release.
--- POTENTIAL INCOMPATIBILITIES -----------------------------------------
OTP-10915 == appmon debugger dialyzer et observer pman toolbar tv ==
Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
OTP-11082 == erts ==
A common case is to wrap an argument to list_to_binary/1 in a
list to ensure conversion can happen even though the argument
may already be a binary. Take special care of this case and
do not copy binary.
Impact: May cause incompatibility since a single binary is no
longer copied. Use binary:copy/1,2 instead.
OTP-11179 == observer ==
The crashdump_viewer is re-written using wx. The old webtool
interface for crashdump_viewer does no longer exist.
OTP-11204 == erts stdlib ==
The version of the PCRE library Used by Erlang's re module is
raised to 8.33 from 7.6. This means, among other things,
better Unicode and Unicode Character Properties support. New
options connected to PCRE 8.33 are also added to the re
module (ucd, notempty_atstart, no_start_optimize). PCRE has
extended the regular expression syntax between 7.6 and 8.33,
why this imposes a potential incompatibility. Only very
complicated regular expressions may be affected, but if you
know you are using obscure features, please test run your
regular expressions and verify that their behavior has not
changed.
OTP-11593 == diameter ==
Change interface for communicating outbound stream id to
diameter_sctp
The module uses the transport_data field of record
diameter_packet to communicate the stream on which the an
incoming message is received and on which an outgoing message
should be sent, the previous interface being that both are
communicated as a tuple of the form {stream, Id}. However,
since diameter retains the value of an incoming request's
transport_data unless the corresponding answer message
specifies otherwise, the behaviour in this case is to send an
answer on the outbound stream with the same identifier as the
that of the inbound stream on which the request was received.
If the inbound stream id is greater than or equal to the
number of outbound streams then this is guaranteed to fail,
causing the transport process in question to terminate. There
is no relationship between inbound and outbound stream
identifiers so diameter_sctp's imposition of one is simply
wrong.
Outbound stream ids are now communicated with a different
tuple: {outstream, Id}, interpreted modulo the number of
outbound streams. Thus, retention of an inbound request's
transport_data has no effect on the selection of an outbound
stream.
The change in interface is not strictly backwards compatible
because of the new atom for the outbound stream. However, as
there is currently no documented way of obtaining the
available number of outbound streams for a peer connection,
there is no way for a client to have known the range of ids
from which it could reliably have chosen with the previous
interface, so any setting of the outbound stream has probably
been unintentional. Not explicitly specifying an outbound
stream now results in a round-robin selection.
Thanks to Sharmila Pillai for reporting the problem.
OTP-11594 == asn1 ==
The OCTET STRING and BIT STRING types now have a more natural
mapping to Erlang types (binary and bitstring, respectively),
which is more efficient and will avoid useless conversions
between lists and binaries/bitstrings.
This is an incompatible change. To revert to the old mapping
to support existing applications, use the legacy_erlang_types
option.
Impact: There is a potential for better performance, as it is
now possible to avoid conversions between lists and binaries
both in the generated ASN.1 encode/decode code and in the
application itself.
OTP-11612 == erts ==
+fnaw is now default when starting the emulator; it used to
be +fnl.
Selection between +fnl and +fnu is done based on the current
locale settings in the OS, meaning that if you have set your
terminal for UTF-8 encoding, the filesystem is expected to
use the same encoding for file names.
OTP-11628 == erts ==
The previously deprecated driver API function
driver_async_cancel() has been removed. Due to this, the
driver API version has been bumped to 3.0.
Thanks to Steve Vinoski.
OTP-11639 == erts ==
sendfile no longer uses async threads by default
This has been done because a slow client attack is possible
if the async thread pool is used. The scenario is:
Client does a request for a file and then slowly receives the
file one byte at a time. This will eventually fill the async
thread pool with blocking sendfile operations and thus
starving the vm of all file operations.
If you still want to use the async threads pool for sendfile
an option to enable it has been introduced.
Thanks to Christopher Faulet for identifying this
vulnerability.
OTP-11716 == sasl ==
The upgrade instruction 'restart_application' would earlier
ignore the restart type configured in the .rel file and
always restart the application as permanent. This is now
changed, and the restart type from the .rel file is used. If
restart type is 'load', the application will only be loaded
and not started. If the restart type is 'none', the
application will not be loaded nor started, but all modules
in the application will be loaded. (Thanks to Tobias Schlager
for reporting this problem)
OTP-11719 == otp ==
The default encoding of Erlang files has been changed from
ISO-8859-1 to UTF-8.
The encoding of XML files has also been changed to UTF-8.
OTP-11723 == erts ==
Changed the default configuration when configuring with
$ERL_TOP/configure to be the same as when configuring with
$ERL_TOP/otp_build configure.
Previously floating point exceptions got enabled by default
on Linux when HiPE was enabled when configuring with
$ERL_TOP/configure, but not when configuring with
$ERL_TOP/otp_build configure. The default is now in both
cases not to use floating point exceptions since there still
exist unresolved issues with floating point exceptions on
Linux.
For more information see $ERL_TOP/HOWTO/INSTALL.md.
OTP-11727 == asn1 ==
When specifying the value for an OCTET STRING in a
specification, the ASN.1 standard clearly states that the
value must be either a bstring or an hstring, but NOT a
cstring. The ASN.1 compiler will now generate a compilation
error if the value of an OCTET STRING is given as a character
string.
That is, the following example is now illegal:
string OCTET STRING ::= "Now illegal"
OTP-11732 == common_test ==
Test case group name information has been added to the data
sent with tc_user_skip and tc_auto_skip event messages, as
well as the data passed in calls to the CT Hook functions
on_tc_skip/3 and on_tc_fail/3. The modification only affects
the function name element/argument. This value remains an
atom if the test case in question does not belong to a test
case group. Otherwise a tuple {FuncName,GroupName}
({atom(),atom()}) is passed instead.
Note that this change may (depending on the patterns used for
matching) require modifications of user event handlers and
hook modules. Please see the Event Handling chapter in the
Common Test User's Guide, and the reference manual for
ct_hooks, for details.
Note also that the Test Server framework callback function
report/2 has been modified. This change only affects users
with test frameworks interfacing Test Server rather than
Common Test. See the test_server_ctrl reference manual for
details.
OTP-11738 == erts ==
The default float encoding in binary_to_term and
external_size has been changed to use minor_mode 1 instead of
0.
OTP-11771 == stdlib ==
The Erlang Code Linter (erl_lint) has since Erlang/OTP R13B
emitted warnings whenever any of the types arity(),
bitstring(), iodata(), or boolean() were re-defined. Now
errors are emitted instead.
OTP-11782 == erts ==
The external format for Maps has changed in a way that is not
compatible with the format used in OTP 17.0-rc1 and OTP
17.0-rc2.
OTP-11817 == stdlib ==
The functions sys:get_state/1,2 and sys:replace_state/2,3 are
fixed so they can now be run while the process is sys
suspended. To accomplish this, the new callbacks
Mod:system_get_state/1 and Mod:system_replace_state/2 are
added, which are also implemented by the generic behaviours
gen_server, gen_event and gen_fsm.
The potential incompatibility refers to
-- The previous behaviour of intercepting the system message
and passing a tuple of size 2 as the last argument to
sys:handle_system_msg/6 is no longer supported.
-- The error handling when StateFun in sys:replace_state/2,3
fails is changed from being totally silent to possibly (if
the callback module does not catch) throw an exception in the
client process.
(Thanks to James Fish and Steve Vinoski)
--- otp -----------------------------------------------------------------
OTP-11537 Funs can now be a given a name. Thanks to to Richard O'Keefe
for the idea (EEP37) and to Anthony Ramine for the
implementation.
OTP-11606 Documentation correction in special processes chapter (Thanks
to Alexander Zhuravlev)
OTP-11615 A new version scheme for OTP as well as all applications in
OTP has been introduced. The version scheme is described in
the versions chapter of the system principles guide in the
OTP documentation.
OTP-11637 Fixed bug in example code in the Distributed Erlang chapter.
(Thanks to Loïc Hoguin.)
OTP-11657 The -callback attribute is now mentioned in the reference
manual, in section Behaviour Module Attribute. (Thanks to
Vance Shipley for mentioning the omission.)
OTP-11683 A new make target called "distclean" is added. This new
target removes files created by configure
OTP-11713 The OTP documentation can now be built the same way in a
cross built source tree as in a native built source tree. For
more information see $ERL_TOP/HOWTO/INSTALL.md.
OTP-11717 Some more documentation is added to explain the behavior when
an upgrade includes new versions of ERTS, Kernel, STDLIB or
SASL.
OTP-11719 The default encoding of Erlang files has been changed from
ISO-8859-1 to UTF-8.
The encoding of XML files has also been changed to UTF-8.
OTP-11736 The release name in all delivered release resource files
(.rel) are changed to "Erlang/OTP". This is visible for
example in the return value from
release_handler:which_releases/0.
OTP-11746 By default, silent rules are now default in configure.
(Thanks to Tuncer Ayaz.)
OTP-11754 "Introducing Erlang " and "Learn You Some Erlang for Great
Good" is added to the list of books in the documentation
(Thanks to Byaruhanga Franklin)
OTP-11773 The app-file key runtime_dependencies has been introduced.
Runtime dependencies have been added to all app-files in OTP.
Note that these may not be completely correct during OTP 17,
but this is actively being worked on.
The function system_information:sanity_check/0 will verify
all declared runtime dependencies in the system when called.
OTP-11792 Clarification regarding autoconf in the INSTALL.md (Thanks to
Sage Imel)
OTP-11805 Enable a cross compile Erlang/OTP platform to Android or
Raspberry PI using Android NDK. Port emulator and core
application to support target HW platform. Exclude any add-on
services required for OTP platform deployment into target
hardware due to device fragmentation and jail-break
requirements. (Thanks to Dmitry Kolesnikov)
--- appmon --------------------------------------------------------------
OTP-10915 Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
--- asn1-3.0 ------------------------------------------------------------
OTP-11258 By giving --enable-static-{nifs,drivers} to configure it is
now possible to statically linking of nifs and drivers to the
main Erlang VM binary. At the moment only the asn1 and crypto
nifs of the Erlang/OTP nifs and drivers have been prepared to
be statically linked. For more details see the Installation
Guide in the System documentation.
OTP-11573 Code generation for the per and uper backends has been
somewhat improved.
OTP-11594 The OCTET STRING and BIT STRING types now have a more natural
mapping to Erlang types (binary and bitstring, respectively),
which is more efficient and will avoid useless conversions
between lists and binaries/bitstrings.
This is an incompatible change. To revert to the old mapping
to support existing applications, use the legacy_erlang_types
option.
Impact: There is a potential for better performance, as it is
now possible to avoid conversions between lists and binaries
both in the generated ASN.1 encode/decode code and in the
application itself.
OTP-11700 Subtyping an extensible ENUMERATED would cause an compilation
error. (Thanks to Morten Nygaard Åsnes for reporting this
bug.)
OTP-11727 When specifying the value for an OCTET STRING in a
specification, the ASN.1 standard clearly states that the
value must be either a bstring or an hstring, but NOT a
cstring. The ASN.1 compiler will now generate a compilation
error if the value of an OCTET STRING is given as a character
string.
That is, the following example is now illegal:
string OCTET STRING ::= "Now illegal"
OTP-11731 All functions in the asn1rt module, as well as
asn1ct:decode/3 and asn1ct:encode/3, are now deprecated.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11804 Generated .hrl files are now protected from being included
more than once.
--- common_test-1.8 -----------------------------------------------------
OTP-11440 ct_telnet can now log all communication taking place during a
telnet session. Previously, only information about ct_telnet
operations and commands, as well as explicitly requested data
from the server, was logged.
Furthermore, a logging mechanism based on an Error Logger
event handler and a dedicated Common Test hook, cth_conn_log,
now makes it possible to print data for individual
connections to separate log files. Please see the ct_telnet
reference manual for more information and examples.
Important note: A new argument, ConnName has been added to
the unix_telnet:connect/5 callback function. This forces
users that use private ct_telnet callback modules to update
their code according to unix_telnet:connect/6. Please see the
unix_telnet reference manual and source code module for
details.
OTP-11643 The error generated if a test case process received an exit
from a linked process while executing init_per_testcase/2,
was handled incorrectly by Common Test. The problem has been
solved, and Common Test now reports this type of error
correctly, with proper error reason and exit location as
well.
OTP-11644 Running a parallel test case group with two or more instances
of the same test case would result in identical log file
names, and one test case instance would overwrite the log
file of another. This problem has been solved.
OTP-11689 A new timeout option has been introduced for the
ct_telnet:expect/3 function. With {total_timeout,Time} it's
possible to set a time limit for the complete expect
operation. After Time milliseconds, expect/3 returns
{error,timeout}. The default value used if total_timeout is
not specified, is infinity (i.e. no time limit). Please see
the ct_telnet reference manual for more information.
OTP-11702 Some function specs are corrected or moved and some edoc
comments are corrected in order to allow use of edoc. (Thanks
to Pierre Fenoll)
OTP-11732 Test case group name information has been added to the data
sent with tc_user_skip and tc_auto_skip event messages, as
well as the data passed in calls to the CT Hook functions
on_tc_skip/3 and on_tc_fail/3. The modification only affects
the function name element/argument. This value remains an
atom if the test case in question does not belong to a test
case group. Otherwise a tuple {FuncName,GroupName}
({atom(),atom()}) is passed instead.
Note that this change may (depending on the patterns used for
matching) require modifications of user event handlers and
hook modules. Please see the Event Handling chapter in the
Common Test User's Guide, and the reference manual for
ct_hooks, for details.
Note also that the Test Server framework callback function
report/2 has been modified. This change only affects users
with test frameworks interfacing Test Server rather than
Common Test. See the test_server_ctrl reference manual for
details.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11769 If Common Test can't prompt the user to abort or continue the
test run when one or more test suites fail to compile, a new
option, {abort_if_missing_suites,Bool}, can be used to
specify whether it should proceed with the test run, or stop
execution. The default value of Bool is false (i.e. to
proceed even if suites are missing).
OTP-11811 The cth_surefire hook would crash in pre_init_per_suite/3 if
a previous hook returned {skip,Reason} or {fail,Reason}
instead of a Config list. This error has been corrected, and
cth_surefire will now simply propagate the received InitData
value instead.
OTP-11834 Specs of return values are corrected for ct_netconfc:get/2,3,
ct_netconfc:get_config/3,4, ct_netconfc:action/2,3,
ct_netconfc:send_rpc/2,3 and ct_netconfc:send/2,3.
--- compiler-5.0 --------------------------------------------------------
OTP-10652 Compilation times for modules with a huge number for record
accesses using the dot operator has been improved.
OTP-11056 The compiler can generate somewhat better code by moving let
expressions into sequences. (Thanks to Anthony Ramine.)
OTP-11186 Forbid unsized fields in patterns of binary generators and
simplified v3_core's translation of bit string generators.
(Thanks to Anthony Ramine.)
OTP-11537 Funs can now be a given a name. Thanks to to Richard O'Keefe
for the idea (EEP37) and to Anthony Ramine for the
implementation.
OTP-11544 Using the from_asm option to produce a BEAM file starting
from BEAM assembly code would often fail because early
optimization passes would not understand instructions that
later optimization passes would introduce. (Thanks to Anthony
Ramine.)
OTP-11547 The .core and .S extensions are now documented in the erlc
documentation, and the 'from_core' and 'from_asm' options are
now documented in the compiler documentation. (Thanks to
Tuncer Ayaz.)
OTP-11572 Line numbers would not be correct when a binary construction
such as '<<Bin/binary,...>>' fails. (Thanks to Stanislav
Seletskiy for reporting this bug.)
OTP-11580 The compiler now properly annotates the code in value in the
'after' clause for a 'try' so that Dialyzer no longer
generates a false warning for an unmatched return.
OTP-11584 Optimization of case expressions that build tuples or lists
have been improved.
OTP-11610 Some case statements where no clause would match could cause
an internal error in the compiler. (Thanks to Erik Soe
Sorensen for reporting this bug.)
OTP-11616 EEP43: New data type - Maps
With Maps you may for instance:
-- M0 = #{ a => 1, b => 2}, % create associations
-- M1 = M0#{ a := 10 }, % update values
-- M2 = M1#{ "hi" => "hello"}, % add new associations
-- #{ "hi" := V1, a := V2, b := V3} = M2. % match keys with
values
For information on how to use Maps please see the Reference
Manual.
The current implementation is without the following features:
-- No variable keys
-- No single value access
-- No map comprehensions
Note that Maps is experimental during OTP 17.0.
OTP-11626 With --Wunmatched_returns, dialyzer will no longer warn when
the value of a list comprehension is ignored, provided that
the each value in the list would be an atomic value (such as
integer or atoms, as opposed to tuples and lists). Example:
ignoring '[io:format(...) || ...]' will not cause a warning,
while ignoring '[file:close(Fd) || ...]' will.
OTP-11672 Matching out a binary and applying the binary as if it were a
fun would crash the run-time system. (Thanks to Loïc
Hoguin.)
OTP-11678 Some local implementations of removing the last element from
a list are replaced by lists:droplast/1. Note that this
requires at least stdlib-2.0, which is the stdlib version
delivered in OTP 17.0. (Thanks to Hans Svensson)
OTP-11682 Allow all auto imports to be suppressed at once. Introducing
the no_auto_import attribute: -compile(no_auto_import).
Useful for code generation tools that always use the
qualified function names and want to avoid the auto imported
functions clashing with local ones. (Thanks to José Valim.)
OTP-11702 Some function specs are corrected or moved and some edoc
comments are corrected in order to allow use of edoc. (Thanks
to Pierre Fenoll)
OTP-11720 Thanks to Anthony Ramine for several improvements to the
optimizations in the BEAM compiler and for cleaning up the
code the code that transforms list and binary comprehensions
to Core Erlang.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11751 Adapt 'asm' deprecation message to new version scheme.
(Thanks to Tuncer Ayaz)
OTP-11770 A number of compiler errors where unusual or nonsensical code
would crash the compiler have been reported by Ulf Norell and
corrected by Anthony Ramine.
OTP-11791 The default encoding for Erlang source files is now UTF-8. As
a temporary measure to ease the transition from the old
default of latin-1, if the compiler encounters byte sequences
that are not valid UTF-8 sequences, the compiler will re-try
the compilation in latin-1 mode. This workaround will be
removed in a future release.
--- crypto-3.3 ----------------------------------------------------------
OTP-11258 By giving --enable-static-{nifs,drivers} to configure it is
now possible to statically linking of nifs and drivers to the
main Erlang VM binary. At the moment only the asn1 and crypto
nifs of the Erlang/OTP nifs and drivers have been prepared to
be statically linked. For more details see the Installation
Guide in the System documentation.
OTP-11522 Add IGE mode for AES cipher in crypto (Thanks to Yura
Beznos).
OTP-11550 Fix memory leaks and invalid deallocations in mod_pow,
mod_exp and generate_key(srp,...) when bad arguments are
passed. (Thanks to Florian Zumbiehi)
OTP-11578 Moved elliptic curve definition from the crypto NIF/OpenSSL
into Erlang code, adds the RFC-5639 brainpool curves and
makes TLS use them (RFC-7027).
Thanks to Andreas Schultz
OTP-11609 Correction of the word 'ChipherText' throughout the
documentation (Thanks to Andrew Tunnell-Jones)
OTP-11619 Remove all obsolete application processes from crypto and
make it into a pure library application.
OTP-11724 Fix fatal bug when using a hmac context variable in more than
one call to hmac_update or hmac_final. The reuse of hmac
contexts has never worked as the underlying OpenSSL
implementation does not support it. It is now documented as
having undefined behaviour, but it does not crash or corrupt
the VM anymore.
OTP-11725 Crypto handles out-of-memory with a controlled abort instead
of crash/corruption. (Thanks to Florian Zumbiehi)
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- debugger-4.0 --------------------------------------------------------
OTP-10915 Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
OTP-11553 The debugger now correctly evaluates code such as 'X = true
andalso X'. (Thanks to Anthony Ramine.)
OTP-11673 Support Maps syntax in debugger (Thanks to Anthony Ramine).
OTP-11676 A few subtle bugs in the evaluation of code in the debugger
has been corrected. (Thanks to Anthony Ramine.)
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- dialyzer-2.7 --------------------------------------------------------
OTP-10342 The pre-defined types array/0, dict/0, digraph/0, gb_set/0,
gb_tree/0, queue/0, set/0, and tid/0 have been deprecated.
They will be removed in Erlang/OTP 18.0.
Instead the types array:array/0, dict:dict/0,
digraph:graph/0, gb_set:set/0, gb_tree:tree/0, queue:queue/0,
sets:set/0, and ets:tid/0 can be used. (Note: it has always
been necessary to use ets:tid/0.)
It is allowed in Erlang/OTP 17.0 to locally re-define the
types array/0, dict/0, and so on.
New types array:array/1, dict:dict/2, gb_sets:set/1,
gb_trees:tree/2, queue:queue/1, and sets:set/1 have been
added.
A compiler option, nowarn_deprecated_type, has been
introduced. By including the attribute
-compile(nowarn_deprecated_type).
in an Erlang source file, warnings about deprecated types can
be avoided in Erlang/OTP 17.0.
The option can also be given as a compiler flag:
erlc +nowarn_deprecated_type file.erl
OTP-10397 Dialyzer will no longer emit warnings when inspecting or
modifying opaque types within the scope of a module.
Hitherto the shape of terms (tuple, list, etc.) has been used
to determine the opaque terms, but now the contracts are used
for decorating types with opaqueness.
OTP-10915 Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
OTP-11186 Forbid unsized fields in patterns of binary generators and
simplified v3_core's translation of bit string generators.
(Thanks to Anthony Ramine.)
OTP-11616 EEP43: New data type - Maps
With Maps you may for instance:
-- M0 = #{ a => 1, b => 2}, % create associations
-- M1 = M0#{ a := 10 }, % update values
-- M2 = M1#{ "hi" => "hello"}, % add new associations
-- #{ "hi" := V1, a := V2, b := V3} = M2. % match keys with
values
For information on how to use Maps please see the Reference
Manual.
The current implementation is without the following features:
-- No variable keys
-- No single value access
-- No map comprehensions
Note that Maps is experimental during OTP 17.0.
OTP-11625 Parameterized opaque types have been introduced.
OTP-11626 With --Wunmatched_returns, dialyzer will no longer warn when
the value of a list comprehension is ignored, provided that
the each value in the list would be an atomic value (such as
integer or atoms, as opposed to tuples and lists). Example:
ignoring '[io:format(...) || ...]' will not cause a warning,
while ignoring '[file:close(Fd) || ...]' will.
OTP-11702 Some function specs are corrected or moved and some edoc
comments are corrected in order to allow use of edoc. (Thanks
to Pierre Fenoll)
OTP-11706 The man page for dialyzer now contains correct information
regarding -Wno_behaviours. (Thanks to Steve Vinosky.)
OTP-11743 Fix handling of 'on_load' attribute. (Thanks to Kostis
Sagonas.)
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11798 The generalization of guard constraints has been modified.
OTP-11826 Dialyzer now plays nicely with funs that come as "external"
arguments. (Thanks to Stavros Aronis for fixing the bug.)
--- diameter-1.6 --------------------------------------------------------
OTP-11561 Add missing check at dictionary compilation.
In particular, that an AVP defined as having type Grouped in
an @avp_types section has a corresponding definition in a
@grouped section.
OTP-11583 Correct documentation on the setting of Origin-State-Id
It was incorrectly stated that the AVP would be set in an
outgoing DPR/DPA.
OTP-11593 Change interface for communicating outbound stream id to
diameter_sctp
The module uses the transport_data field of record
diameter_packet to communicate the stream on which the an
incoming message is received and on which an outgoing message
should be sent, the previous interface being that both are
communicated as a tuple of the form {stream, Id}. However,
since diameter retains the value of an incoming request's
transport_data unless the corresponding answer message
specifies otherwise, the behaviour in this case is to send an
answer on the outbound stream with the same identifier as the
that of the inbound stream on which the request was received.
If the inbound stream id is greater than or equal to the
number of outbound streams then this is guaranteed to fail,
causing the transport process in question to terminate. There
is no relationship between inbound and outbound stream
identifiers so diameter_sctp's imposition of one is simply
wrong.
Outbound stream ids are now communicated with a different
tuple: {outstream, Id}, interpreted modulo the number of
outbound streams. Thus, retention of an inbound request's
transport_data has no effect on the selection of an outbound
stream.
The change in interface is not strictly backwards compatible
because of the new atom for the outbound stream. However, as
there is currently no documented way of obtaining the
available number of outbound streams for a peer connection,
there is no way for a client to have known the range of ids
from which it could reliably have chosen with the previous
interface, so any setting of the outbound stream has probably
been unintentional. Not explicitly specifying an outbound
stream now results in a round-robin selection.
Thanks to Sharmila Pillai for reporting the problem.
OTP-11655 Fix unicode path failure in diameter_make:codec/2.
A dictionary path containing a unicode codepoint > 255 caused
the function to fail.
OTP-11661 Fix 'accept' config to diameter_sctp.
OTP-10893 added support for {accept, Match} tuples to specify
addresses or regexps that should be matched against peer
addresses to decide whether or not a newly established
association should be retained, but this hasn't been
functional in the SCTP case because of missing support in
inet(3).
The display of both local and peer addresses in
diameter:service_info/2 output has also been corrected.
OTP-11675 Be lenient with the M-bit in Grouped AVPs.
RFC 6733 says this, in 4.4:
--
Receivers of a Grouped AVP that does not have the 'M'
(mandatory) bit set and one or more of the encapsulated AVPs
within the group has the 'M' (mandatory) bit set MAY simply
be ignored if the Grouped AVP itself is unrecognized. The
rule applies even if the encapsulated AVP with its 'M'
(mandatory) bit set is further encapsulated within other
sub-groups, i.e., other Grouped AVPs embedded within the
Grouped AVP.
The first sentence is mangled but take it to mean this:
--
An unrecognized AVP of type Grouped that does not set the 'M'
bit MAY be ignored even if one of its encapsulated AVPs sets
the 'M' bit.
This is a bit of a non-statement since if the AVP is
unrecognized then its type is unknown. We therefore don't
know that its data bytes contain encapsulated AVPs, so can't
but ignore any of those that set the M-bit. Doing anything
else when the type *is* known would be inconsistent.
OTP-11087 (R16B03) caused the M-bit on any unrecognized AVP
to be regarded as an error, unrecognized being taken to mean
"not explicitly defined as a member of its container". (That
is, an AVP that can't be packed into a dedicated record
field, which is slightly stronger than "not defined".) This
fixed the original intention for top-level AVPs but broke the
required leniency for Grouped AVPs whose type is known. This
leniency is now restored.
Note that dictionary files need to be recompiled for the
change to have effect.
Thanks to Rory McKeown for reporting the problem.
OTP-11789 Fix pick_peer case clause failure.
In the case of {call_mutates_state, true} configuration on
the service in question, any peer selection that failed to
select a peer resulted in a case clause failure. This was
noticed in the case of a peer failover in which an alternate
peer wasn't available.
--- edoc-0.7.13 ---------------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- eldap-1.0.3 ---------------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11753 Add support for IPv6 connections, By including the [inet6]
option in eldap:open/2. Default value is still [inet] (Thanks
to Edwin Fine)
OTP-11768 Fixed bug where eldap:search returned binaries instead of
strings. (Thanks Simon MacMullen for the report)
--- erl_docgen-0.3.5 ----------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11776 Handle map types in docgen_edoc_xml_cb
--- erl_interface-3.7.16 ------------------------------------------------
OTP-11608 Fix memcheck warning in gen_challange (Thanks to Olivier
Girondel)
--- erts-6.0 ------------------------------------------------------------
OTP-10285 Options to set match_limit and match_limit_recursion are
added to re:run. The option report_errors is also added to
get more information when re:run fails due to limits or
compilation errors.
OTP-10908 Dialyzer's unmatched_return warnings have been corrected.
OTP-11082 A common case is to wrap an argument to list_to_binary/1 in a
list to ensure conversion can happen even though the argument
may already be a binary. Take special care of this case and
do not copy binary.
Impact: May cause incompatibility since a single binary is no
longer copied. Use binary:copy/1,2 instead.
OTP-11105 Make erlang:open_port/2 spawn and spawn_executable handle
unicode.
OTP-11135 Handle unicode (widestring) in erl, erlc, heart, etc on
windows.
OTP-11204 The version of the PCRE library Used by Erlang's re module is
raised to 8.33 from 7.6. This means, among other things,
better Unicode and Unicode Character Properties support. New
options connected to PCRE 8.33 are also added to the re
module (ucd, notempty_atstart, no_start_optimize). PCRE has
extended the regular expression syntax between 7.6 and 8.33,
why this imposes a potential incompatibility. Only very
complicated regular expressions may be affected, but if you
know you are using obscure features, please test run your
regular expressions and verify that their behavior has not
changed.
OTP-11205 The option dupnames did not work as intended in re. When
looking for names with {capture, [Name, ...]}, re:run
returned a random instance of the match for that name,
instead of the leftmost matching instance, which was what the
documentation stated. This is now corrected to adhere to the
documentation. The option {capture,all_names} along with a
re:inspect/2 function is also added to further help in using
named subpatterns.
OTP-11248 Filenames containing UTF-8 encoded characters can now be
handled by erlc.
If you have set the ERLC_EMULATOR environment variable, note
that erlc in OTP 17 will only work with erl in OTP 17 since
the protocol between the erlc program and the erl_compile
module has changed.
OTP-11258 By giving --enable-static-{nifs,drivers} to configure it is
now possible to statically linking of nifs and drivers to the
main Erlang VM binary. At the moment only the asn1 and crypto
nifs of the Erlang/OTP nifs and drivers have been prepared to
be statically linked. For more details see the Installation
Guide in the System documentation.
OTP-11334 Erlang/OTP has been ported to the realtime operating system
OSE. The port supports both smp and non-smp emulator. For
details around the port and how to started see the User's
Guide in the ose application.
Note that not all parts of Erlang/OTP has been ported.
Notable things that work are: non-smp and smp emulators, OSE
signal interaction, crypto, asn1, run_erl/to_erl, tcp, epmd,
distribution and most if not all non-os specific
functionality of Erlang.
Notable things that does not work are: udp/sctp, os_mon,
erl_interface, binding of schedulers.
OTP-11368 Add the {active,N} socket option for TCP, UDP, and SCTP,
where N is an integer in the range -32768..32767, to allow a
caller to specify the number of data messages to be delivered
to the controlling process. Once the socket's delivered
message count either reaches 0 or is explicitly set to 0 with
inet:setopts/2 or by including {active,0} as an option when
the socket is created, the socket transitions to passive
({active, false}) mode and the socket's controlling process
receives a message to inform it of the transition. TCP
sockets receive {tcp_passive,Socket}, UDP sockets receive
{udp_passive,Socket} and SCTP sockets receive
{sctp_passive,Socket}.
The socket's delivered message counter defaults to 0, but it
can be set using {active,N} via any gen_tcp, gen_udp, or
gen_sctp function that takes socket options as arguments, or
via inet:setopts/2. New N values are added to the socket's
current counter value, and negative numbers can be used to
reduce the counter value. Specifying a number that would
cause the socket's counter value to go above 32767 causes an
einval error. If a negative number is specified such that the
counter value would become negative, the socket's counter
value is set to 0 and the socket transitions to passive mode.
If the counter value is already 0 and inet:setopts(Socket,
[{active,0}]) is specified, the counter value remains at 0
but the appropriate passive mode transition message is
generated for the socket.
Thanks to Steve Vinoski
OTP-11385 A new optional scheduler utilization balancing mechanism has
been introduced. For more information see the +sub command
line argument.
Characteristics impact: None, when not enabled. When enabled,
changed timing in the system, normally a small overhead due
to measuring of utilization and calculating balancing
information. On some systems, such as old Windows systems,
the overhead can be quite substantial. This time measurement
overhead highly depend on the underlying primitives provided
by the OS.
OTP-11388 A call to either the garbage_collect/1 BIF or the
check_process_code/2 BIF may trigger garbage collection of
another processes than the process calling the BIF. The
previous implementations performed these kinds of garbage
collections without considering the internal state of the
process being garbage collected. In order to be able to more
easily and more efficiently implement yielding native code,
these types of garbage collections have been rewritten. A
garbage collection like this is now triggered by an
asynchronous request signal, the actual garbage collection is
performed by the process being garbage collected itself, and
finalized by a reply signal to the process issuing the
request. Using this approach processes can disable garbage
collection and yield without having to set up the heap in a
state that can be garbage collected.
The garbage_collect/2, and check_process_code/3 BIFs have
been introduced. Both taking an option list as last argument.
Using these, one can issue asynchronous requests.
code:purge/1 and code:soft_purge/1 have been rewritten to
utilize asynchronous check_process_code requests in order to
parallelize work.
Characteristics impact: A call to the garbage_collect/1 BIF
or the check_process_code/2 BIF will normally take longer
time to complete while the system as a whole wont be as much
negatively effected by the operation as before. A call to
code:purge/1 and code:soft_purge/1 may complete faster or
slower depending on the state of the system while the system
as a whole wont be as much negatively effected by the
operation as before.
OTP-11408 Allow loading of NIF library with unicode path name
OTP-11419 Cleanup 'Buckets' and 'Time left' fields in crashdump to ease
parsing.
OTP-11498 Add sync option to file:open/2.
The sync option adds the POSIX O_SYNC flag to the open system
call on platforms that support the flag or its equivalent,
e.g., FILE_FLAG_WRITE_THROUGH on Windows. For platforms that
don't support it, file:open/2 returns {error, enotsup} if the
sync option is passed in. Thank to Steve Vinoski and Joseph
Blomstedt
OTP-11535 erlang:binary_to_term will now cost an appropriate amount of
reductions and will interrupt (yield) for reschedule if the
term is big. This avoids too long schedules when
binary_to_term is used. (Thanks to Svante Karlsson for the
original patch)
Impact: Programs running binary_to_term on large binaries
will run more smoothly, but rescheduling will impact the
single process performance of the BIF. Single threaded
benchmarks might show degraded performance of the BIF, while
general system behaviour will be improved.
OTP-11549 Allow loading of driver with unicode path name
OTP-11558 Fixed a bug where starting Erlang without having an open
stdin on fd 0 would sometimes deadlock the emulator when
terminating.
OTP-11560 Added high resolution icon for windows. (Thanks to Daniel
Goertz for the inspiration.)
OTP-11565 The option '-names' in epmd now works on Windows (Thanks to
Johannes Weißl)
OTP-11577 Correction of the examples in escript documentation. (Thanks
to Pierre Fenoll).
OTP-11581 Fix bs_get_integer instruction
The instruction bs_get_integer could unnecessarily trigger a
garbage collection in failure cases which is unwanted or
outright dangerous.
Ex:
<<X:Sz,_/bits>> = <<"some binary">>
Previously, if Sz induced X to a bignum it would reserved
memory size this on the heap via a garbage collection before
checking if the size could actually match.
It will now check the binary size before triggering a
collection.
OTP-11585 Remove heap space overestimation in binary_to_term (and
remote message reception) for integers in the intervals
[-2147483648,-1] and [256,2147483647] on 64-bit emulators.
OTP-11590 Add support for detecting the separate tinfo library from
ncurses (Thanks to Dirkjan Ochtman)
OTP-11602 Deprecation warning for system_flag(cpu_topology) has been
extended for removal in OTP 18 (Thanks to Steve Vinoski for
the update)
OTP-11604 Migration of memory carriers has been enabled by default on
all ERTS internal memory allocators based on the alloc_util
framework except for temp_alloc. That is, +M<S>acul de is
default for these allocators. Note that this also implies
changed allocation strategies for all of these allocators.
They will all now use the "address order first fit carrier
best fit" strategy.
By passing +Muacul 0 on the command line, all configuration
changes made by this change will be reverted.
Characteristics impact: Improved memory characteristics with
a smaller memory footprint at the expense of a quite small
performance cost.
OTP-11607 Documentation improvement regarding some awkward wording
around the +spp flag. (Thanks to Brian L. Troutwine )
OTP-11611 A clarification has been added to the documentation of
-on_load() in the Reference Manual that it is only
recommended for loading NIF libraries.
OTP-11612 +fnaw is now default when starting the emulator; it used to
be +fnl.
OTP-11614 Fixed bug where sendfile would return the wrong error code
for a remotely closed socket if the socket was in passive
mode. (Thanks to Vincent Siliakus for reporting the bug.)
OTP-11616 EEP43: New data type - Maps
With Maps you may for instance:
-- M0 = #{ a => 1, b => 2}, % create associations
-- M1 = M0#{ a := 10 }, % update values
-- M2 = M1#{ "hi" => "hello"}, % add new associations
-- #{ "hi" := V1, a := V2, b := V3} = M2. % match keys with
values
For information on how to use Maps please see the Reference
Manual.
The current implementation is without the following features:
-- No variable keys
-- No single value access
-- No map comprehensions
Note that Maps is experimental during OTP 17.0.
OTP-11617 Increase garbage collection tenure rate
The garbage collector tries to maintain the previous heap
block size during a minor gc, i.e. 'need' is not utilized in
determining the size of the new heap, instead it relies on
tenure and garbage to be sufficiently large.
In instances during intense growing with exclusively live
data on the heap coupled with delayed tenure, fullsweeps
would be triggered directly after a minor gc to make room for
'need' since the new heap would be full.
To remedy this, the tenure of terms on the minor heap will
always happen (if it is below the high watermark) instead of
every other minor gc.
Characteristics Impact: Reduced CPU-time spent in garbage
collection but may infer delays in collecting garbage from
the heap. Tweak 'fullsweep_after' options to increase gc
pressure if needed.
OTP-11618 Fix bug when comparing integers with floats larger than
2^992. The bug could potentially cause memory corruption on
32-bit emulators.
OTP-11628 The previously deprecated driver API function
driver_async_cancel() has been removed. Due to this, the
driver API version has been bumped to 3.0.
Thanks to Steve Vinoski.
OTP-11629 Experimental "dirty scheduler" functionality has been
introduced. In order to try the functionality out, you need
to pass the command line argument --enable-dirty-schedulers
to configure when building the system.
Dirty schedulers can currently only be used by NIFs on a
system with SMP support. More information can be found in the
erl_nif(3) documentation, the erl(1) documentation, and in
the git commit comment of commit
'c1c03ae4ee50e58b7669ea88ec4d29c6b2b67c7b'.
Note that the functionality is experimental, and not
supported. This functionality will be subject to backward
incompatible changes. You should not enable the dirty
scheduler functionality on production systems. It is only
provided for testing.
Thanks to Steve Vinoski.
OTP-11635 Cross-compilation fixes for TileraMDE-3.0.1.125620
OTP-11639 sendfile no longer uses async threads by default
This has been done because a slow client attack is possible
if the async thread pool is used. The scenario is:
Client does a request for a file and then slowly receives the
file one byte at a time. This will eventually fill the async
thread pool with blocking sendfile operations and thus
starving the vm of all file operations.
If you still want to use the async threads pool for sendfile
an option to enable it has been introduced.
Thanks to Christopher Faulet for identifying this
vulnerability.
OTP-11648 Improve reduction cost and yielding of term_to_binary. The
reduction cost is increased and garbage collection is
disabled during yield.
Impact: Improves system responsiveness when term_to_binary is
called with large terms without significant degradation of
single threaded performance.
OTP-11669 By default, the system's version of zlib will be used,
provided its version is 1.2.4 or higher; otherwise the
built-in zlib will be used. The built-in version of zlib has
been bumped to 1.2.8. (Use the --enable-builtin-zlib option
to configure to force the use of the built-in zlib.)
OTP-11722 Do proper rollback of calls to enif_open_resource_type when
load/upgrade callbacks of NIF library return failure.
OTP-11723 Changed the default configuration when configuring with
$ERL_TOP/configure to be the same as when configuring with
$ERL_TOP/otp_build configure.
Previously floating point exceptions got enabled by default
on Linux when HiPE was enabled when configuring with
$ERL_TOP/configure, but not when configuring with
$ERL_TOP/otp_build configure. The default is now in both
cases not to use floating point exceptions since there still
exist unresolved issues with floating point exceptions on
Linux.
For more information see $ERL_TOP/HOWTO/INSTALL.md.
OTP-11738 The default float encoding in binary_to_term and
external_size has been changed to use minor_mode 1 instead of
0.
OTP-11742 Introduced the configure option
--with-assumed-cache-line-size=SIZE. For more information see
$ERL_TOP/HOWTO/INSTALL.md.
OTP-11777 Halfword emulator is marked as deprecated. It still works as
before but is planned to be removed in a future major
release.
OTP-11782 The external format for Maps has changed in a way that is not
compatible with the format used in OTP 17.0-rc1 and OTP
17.0-rc2.
OTP-11784 Fixed faulty make dependency that would make some make
versions fail while building gen_git_version.mk.
OTP-11793 A comment in erl_db_tree.c no longer differ from the code.
(Thanks to Cobus Carstens)
OTP-11808 Fix epmd debug functionality for VxWorks (Thanks to Jay True)
OTP-11809 Use closefrom/2 when available in child_setup (Thanks to Rick
Reed and Anthony Ramine)
OTP-11813 Support file paths longer than 259 characters on Windows.
Long absolute paths are automatically converted to UNC format
with a \\?\ prefix which is the only way to represent long
paths. The 259 character limit still applies for individual
file names, relative paths and the current working directory.
OTP-11816 Fix dtrace/systemtap bug where the probe arguments would be
concatenated due to faulty length calculation.
Thanks to Michal Ptaszek and Scott Lystig Fritchie
OTP-11818 It is now better documented that the +fn* flags to erl also
affect how command line parameters and environment variables
are read. (Thanks to Vlad Dumitrescu)
OTP-11827 Document that escript:create/2 also accepts a 3-elements
tuple containing files and zip:create/3 options to build a
zip file.
Thanks to Pierre Fenoll
OTP-11829 Add systemd socket activation for epmd.
Thanks to Matwey V. Kornilov
--- et-1.5 --------------------------------------------------------------
OTP-10915 Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- eunit-2.2.7 ---------------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- gs-1.5.16 -----------------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- hipe-3.10.3 ---------------------------------------------------------
OTP-10342 The pre-defined types array/0, dict/0, digraph/0, gb_set/0,
gb_tree/0, queue/0, set/0, and tid/0 have been deprecated.
They will be removed in Erlang/OTP 18.0.
Instead the types array:array/0, dict:dict/0,
digraph:graph/0, gb_set:set/0, gb_tree:tree/0, queue:queue/0,
sets:set/0, and ets:tid/0 can be used. (Note: it has always
been necessary to use ets:tid/0.)
It is allowed in Erlang/OTP 17.0 to locally re-define the
types array/0, dict/0, and so on.
New types array:array/1, dict:dict/2, gb_sets:set/1,
gb_trees:tree/2, queue:queue/1, and sets:set/1 have been
added.
A compiler option, nowarn_deprecated_type, has been
introduced. By including the attribute
-compile(nowarn_deprecated_type).
in an Erlang source file, warnings about deprecated types can
be avoided in Erlang/OTP 17.0.
The option can also be given as a compiler flag:
erlc +nowarn_deprecated_type file.erl
OTP-11564 Fix compilation with 'no_remove_comments' (Thanks to Johannes
Weißl)
OTP-11616 EEP43: New data type - Maps
With Maps you may for instance:
-- M0 = #{ a => 1, b => 2}, % create associations
-- M1 = M0#{ a := 10 }, % update values
-- M2 = M1#{ "hi" => "hello"}, % add new associations
-- #{ "hi" := V1, a := V2, b := V3} = M2. % match keys with
values
For information on how to use Maps please see the Reference
Manual.
The current implementation is without the following features:
-- No variable keys
-- No single value access
-- No map comprehensions
Note that Maps is experimental during OTP 17.0.
OTP-11625 Parameterized opaque types have been introduced.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11748 There is now a test suite for the Hipe application
OTP-11801 Support for a LLVM backend has been added in HiPE
OTP-11831 Add support for the compilation of the is_map/1 and
map_size/1 guards to native code.
--- ic-4.3.5 ------------------------------------------------------------
OTP-11783 Added Latin-1 code directive in the generated files to keep
old behaviour. Updated IC so it can handle Unicode characters
in the path.
--- inets-5.10 ----------------------------------------------------------
OTP-11538 Fixed a spelling mistake in httpc doc (Thanks to Wasif Riaz
Malik)
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11750 ftp now sanitize file name, user name and passwords from <CR>
and <LF> tags (Thanks to Sergei Golovan)
OTP-11756 The commit 6189bc07 "inets: httpc improve pipelining" has
been reverted, as it turned out to break things rather than
improve pipelining utilization. It is instead up to the user
to configure httpc and use it wisely to be able to get the
most out of pipelining.
OTP-11794 Corrected error handling in the HTTP client, making it behave
more graceful.
Thanks to Kirilll Zaborsky
OTP-11802 Support identity transfer-encoding in httpc.
Thanks to Anthony Ramine
OTP-11803 Ignore empty Set-Cookie headers to increase interoperability
with servers that violate the RFC.
Thanks to Kirilll Zaborsky
OTP-11838 Handle all response codes in httpd_util:message/3
--- jinterface-1.5.9 ----------------------------------------------------
OTP-11703 Implement support for Maps
The API and implementation are simplistic, like for lists and
tuples, using arrays and without any connection to
java.util.Map. (Thanks to Vlad Dumitrescu)
--- kernel-3.0 ----------------------------------------------------------
OTP-10843 heart:set_cmd/1 is updated to allow unicode code points > 255
in the given heart command
OTP-10908 Dialyzer's unmatched_return warnings have been corrected.
OTP-11105 Make erlang:open_port/2 spawn and spawn_executable handle
unicode.
OTP-11171 Fixed a deadlock possibility in terminate application
OTP-11334 Erlang/OTP has been ported to the realtime operating system
OSE. The port supports both smp and non-smp emulator. For
details around the port and how to started see the User's
Guide in the ose application.
Note that not all parts of Erlang/OTP has been ported.
Notable things that work are: non-smp and smp emulators, OSE
signal interaction, crypto, asn1, run_erl/to_erl, tcp, epmd,
distribution and most if not all non-os specific
functionality of Erlang.
Notable things that does not work are: udp/sctp, os_mon,
erl_interface, binding of schedulers.
OTP-11368 Add the {active,N} socket option for TCP, UDP, and SCTP,
where N is an integer in the range -32768..32767, to allow a
caller to specify the number of data messages to be delivered
to the controlling process. Once the socket's delivered
message count either reaches 0 or is explicitly set to 0 with
inet:setopts/2 or by including {active,0} as an option when
the socket is created, the socket transitions to passive
({active, false}) mode and the socket's controlling process
receives a message to inform it of the transition. TCP
sockets receive {tcp_passive,Socket}, UDP sockets receive
{udp_passive,Socket} and SCTP sockets receive
{sctp_passive,Socket}.
The socket's delivered message counter defaults to 0, but it
can be set using {active,N} via any gen_tcp, gen_udp, or
gen_sctp function that takes socket options as arguments, or
via inet:setopts/2. New N values are added to the socket's
current counter value, and negative numbers can be used to
reduce the counter value. Specifying a number that would
cause the socket's counter value to go above 32767 causes an
einval error. If a negative number is specified such that the
counter value would become negative, the socket's counter
value is set to 0 and the socket transitions to passive mode.
If the counter value is already 0 and inet:setopts(Socket,
[{active,0}]) is specified, the counter value remains at 0
but the appropriate passive mode transition message is
generated for the socket.
Thanks to Steve Vinoski
OTP-11388 A call to either the garbage_collect/1 BIF or the
check_process_code/2 BIF may trigger garbage collection of
another processes than the process calling the BIF. The
previous implementations performed these kinds of garbage
collections without considering the internal state of the
process being garbage collected. In order to be able to more
easily and more efficiently implement yielding native code,
these types of garbage collections have been rewritten. A
garbage collection like this is now triggered by an
asynchronous request signal, the actual garbage collection is
performed by the process being garbage collected itself, and
finalized by a reply signal to the process issuing the
request. Using this approach processes can disable garbage
collection and yield without having to set up the heap in a
state that can be garbage collected.
The garbage_collect/2, and check_process_code/3 BIFs have
been introduced. Both taking an option list as last argument.
Using these, one can issue asynchronous requests.
code:purge/1 and code:soft_purge/1 have been rewritten to
utilize asynchronous check_process_code requests in order to
parallelize work.
Characteristics impact: A call to the garbage_collect/1 BIF
or the check_process_code/2 BIF will normally take longer
time to complete while the system as a whole wont be as much
negatively effected by the operation as before. A call to
code:purge/1 and code:soft_purge/1 may complete faster or
slower depending on the state of the system while the system
as a whole wont be as much negatively effected by the
operation as before.
OTP-11498 Add sync option to file:open/2.
The sync option adds the POSIX O_SYNC flag to the open system
call on platforms that support the flag or its equivalent,
e.g., FILE_FLAG_WRITE_THROUGH on Windows. For platforms that
don't support it, file:open/2 returns {error, enotsup} if the
sync option is passed in. Thank to Steve Vinoski and Joseph
Blomstedt
OTP-11614 Fixed bug where sendfile would return the wrong error code
for a remotely closed socket if the socket was in passive
mode. (Thanks to Vincent Siliakus for reporting the bug.)
OTP-11708 The new option persistent is added to application:set_env/4
and application:unset_env/3. An environment key set with the
persistent option will not be overridden by the ones
configured in the application resource file on load. This
means persistent values will stick after the application is
loaded and also on application reload. (Thanks to José
Valim)
OTP-11730 The contract of inet:ntoa/1 has been corrected.
Thanks to Max Treskin.
OTP-11787 The spec for file:set_cwd/1 is modified to also accept
binaries as arguments. This has always been allowed in the
code, but it was not reflected in the spec since binaries are
mostly used for raw file names. Raw file names are names that
are not encoded according to file:native_name_encoding(), and
these are not allowed in file:set_cwd/1. The spec is now,
however, more allowing in order to avoid unnecessary dialyzer
warnings. Raw file names will still fail in runtime with
reason 'no_translation'. (Thanks to José Valim)
--- mnesia-4.12 ---------------------------------------------------------
OTP-11497 To prevent a race condition if there is a short communication
problem when node-down and node-up events are received. They
are now stored and later checked if the node came up just
before mnesia flagged the node as down. (Thanks to Jonas
Falkevik )
OTP-11678 Some local implementations of removing the last element from
a list are replaced by lists:droplast/1. Note that this
requires at least stdlib-2.0, which is the stdlib version
delivered in OTP 17.0. (Thanks to Hans Svensson)
OTP-11729 Added mnesia:sync_log/0 to explicit sync mnesias transaction
log.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- observer-2.0 --------------------------------------------------------
OTP-10915 Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
OTP-11179 The crashdump_viewer is re-written using wx. The old webtool
interface for crashdump_viewer does no longer exist.
OTP-11633 etop trace handler now works in smp environment (Thanks to
Péter Gömöri)
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- odbc-2.10.20 --------------------------------------------------------
OTP-11569 Removed warnings at compile time by adding missing include
file (Thanks to Anthony Ramine)
OTP-11630 Apple has removed iODBC in OS X 10.9 Mavericks, but forgot to
remove all binaries, adopt configure so that will be possible
to build odbc with own installation.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- orber-3.6.27 --------------------------------------------------------
OTP-11678 Some local implementations of removing the last element from
a list are replaced by lists:droplast/1. Note that this
requires at least stdlib-2.0, which is the stdlib version
delivered in OTP 17.0. (Thanks to Hans Svensson)
--- os_mon-2.2.15 -------------------------------------------------------
OTP-10842 Calls to erlang:open_port/2 with 'spawn' are updated to
handle space in the command path.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- ose-1.0 -------------------------------------------------------------
OTP-11334 Erlang/OTP has been ported to the realtime operating system
OSE. The port supports both smp and non-smp emulator. For
details around the port and how to started see the User's
Guide in the ose application.
Note that not all parts of Erlang/OTP has been ported.
Notable things that work are: non-smp and smp emulators, OSE
signal interaction, crypto, asn1, run_erl/to_erl, tcp, epmd,
distribution and most if not all non-os specific
functionality of Erlang.
Notable things that does not work are: udp/sctp, os_mon,
erl_interface, binding of schedulers.
--- otp_mibs-1.0.9 ------------------------------------------------------
OTP-11203 Add type based integer value truncation/reset.
This fixes errors when querying e.g. the erlNodeReductions,
erlNodeInBytes and erlNodeOutBytes objects in long-running
Erlang/OTP systems.
Update types of applicable MIB objects to 64bit based types.
Potential incompatibility: Type change of Counter32 to
Counter64 in OTP-MIB.mib
(Thanks to Tobias Schlager)
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- parsetools-2.0.11 ---------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11749 A Yecc example has been updated in the documentation (Thanks
to Pierre Fenoll.)
--- percept-0.8.9 -------------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- pman ----------------------------------------------------------------
OTP-10915 Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
--- public_key-0.22 -----------------------------------------------------
OTP-11578 Moved elliptic curve definition from the crypto NIF/OpenSSL
into Erlang code, adds the RFC-5639 brainpool curves and
makes TLS use them (RFC-7027).
Thanks to Andreas Schultz
OTP-11627 Fix incorrect dialyzer spec and types, also enhance
documentation.
Thanks to Ayaz Tuncer.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11761 Handle v1 CRLs, with no extensions and fixes issues with IDP
(Issuing Distribution Point) comparison during CRL
validation.
Thanks to Andrew Thompson
--- reltool-0.6.5 -------------------------------------------------------
OTP-11591 When adding a regexp to a filter in reltool using
{add,Regexp}, and the existing regexp was undefined, reltool
would crash since it got an improper list. This has been
corrected. (Thanks to Håkan Mattsson)
OTP-11592 Adapted reltool test server to common test usage of
tc_status. (Note that this code is not used by OTP daily test
runs.) (Thanks to Håkan Mattsson)
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- runtime_tools-1.8.14 ------------------------------------------------
OTP-10877 Allow install path to have unicode characters.
OTP-11603 The documentation for the return value of
dbg:{stop,stop_clear} functions are now correct (Thanks to
Luca Favatella)
OTP-11622 Fix DTrace build on Illumos. (Thanks to Ryan Zezeski.)
OTP-11662 The erts_alloc_config tool has been updated to produce
configurations that better fit todays SMP support in the VM.
OTP-11693 Do not turn off scheduler_wall_time, as it can interfere with
other applications usage.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11773 The app-file key runtime_dependencies has been introduced.
Runtime dependencies have been added to all app-files in OTP.
Note that these may not be completely correct during OTP 17,
but this is actively being worked on.
The function system_information:sanity_check/0 will verify
all declared runtime dependencies in the system when called.
--- sasl-2.4 ------------------------------------------------------------
OTP-10842 Calls to erlang:open_port/2 with 'spawn' are updated to
handle space in the command path.
OTP-11716 The upgrade instruction 'restart_application' would earlier
ignore the restart type configured in the .rel file and
always restart the application as permanent. This is now
changed, and the restart type from the .rel file is used. If
restart type is 'load', the application will only be loaded
and not started. If the restart type is 'none', the
application will not be loaded nor started, but all modules
in the application will be loaded. (Thanks to Tobias Schlager
for reporting this problem)
OTP-11717 Some more documentation is added to explain the behavior when
an upgrade includes new versions of ERTS, Kernel, STDLIB or
SASL.
OTP-11819 If systools:make_script/2 failed with reason
duplicate_modules, and the silent flag was not used, a crash
with reason function_clause would occur when systools tried
to format the error message. This has been corrected. (Thanks
to Jean-Sébastien Pédron)
--- snmp-4.25.1 ---------------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- ssh-3.0.1 -----------------------------------------------------------
OTP-10732 Fixes the problem that ssh_cli in some cases could delay the
prompt if a tty was not requested by the client.
OTP-10953 Ssh now fully supports unicode filenames, filecontents, shell
and cli. Please note that the underlying os and emulator must
also give support for unicode. You may want to start the
emulator with "erl +fnu" on Linux.
OTP-11566 The variable NewCol is now correctly calculated allowing for
tab-completion of function calls even when preceded with
blank space (Thanks to Alexander Demidenko)
OTP-11627 Fix incorrect dialyzer spec and types, also enhance
documentation.
Thanks to Ayaz Tuncer.
OTP-11671 Fixed a bug with the ssh file 'known_hosts' which made the
file grow with many equal entries.
OTP-11678 Some local implementations of removing the last element from
a list are replaced by lists:droplast/1. Note that this
requires at least stdlib-2.0, which is the stdlib version
delivered in OTP 17.0. (Thanks to Hans Svensson)
OTP-11680 Bug fix for ssh:daemon/2,3 so that the failfun is called when
it should.
OTP-11705 dialyzer specs are now correct for ssh:start/0, ssh:start/1,
ssh:stop/0 and ssh_connection_handler:open_channel/5. (Thanks
to Johannes Weißl )
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11821 Fixed dialyzer warning for ssh_connection:send.
OTP-11823 ssh:daemon/2,3 : Added options negotiation_timeout and
parallel_login to tune the authentication behaviour.
--- ssl-5.3.4 -----------------------------------------------------------
OTP-11578 Moved elliptic curve definition from the crypto NIF/OpenSSL
into Erlang code, adds the RFC-5639 brainpool curves and
makes TLS use them (RFC-7027).
Thanks to Andreas Schultz
OTP-11620 Unicode adaptations
OTP-11621 Added option honor_cipher_order. This instructs the server to
prefer its own cipher ordering rather than the client's and
can help protect against things like BEAST while maintaining
compatability with clients which only support older ciphers.
Thanks to Andrew Thompson for the implementation, and Andreas
Schultz for the test cases.
OTP-11627 Fix incorrect dialyzer spec and types, also enhance
documentation.
Thanks to Ayaz Tuncer.
OTP-11634 Replace boolean checking in validate_option with is_boolean
guard.
Thanks to Andreas Schultz.
OTP-11702 Some function specs are corrected or moved and some edoc
comments are corrected in order to allow use of edoc. (Thanks
to Pierre Fenoll)
OTP-11712 Fix possible mismatch between SSL/TLS version and default
ciphers. Could happen when you specified SSL/TLS-version in
optionlist to listen or accept.
OTP-11733 Correct clean up of certificate database when certs are
inputed in pure DER format.The incorrect code could cause a
memory leek when certs where inputed in DER. Thanks to
Bernard Duggan for reporting this.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11759 Improved documentation of the cacertfile option
OTP-11760 Avoid next protocol negotiation failure due to incorrect
option format.
OTP-11761 Handle v1 CRLs, with no extensions and fixes issues with IDP
(Issuing Distribution Point) comparison during CRL
validation.
Thanks to Andrew Thompson
OTP-11780 Server now ignores client ECC curves that it does not support
instead of crashing.
Thanks to Danil Zagoskin for reporting the issue and
suggesting a solution.
OTP-11815 Handle SNI (Server Name Indication) alert unrecognized_name
and gracefully deal with unexpected alerts.
Thanks to Masatake Daimon for reporting this.
OTP-11837 Add possibility to specify ssl options when calling
ssl:ssl_accept
--- stdlib-2.0 ----------------------------------------------------------
OTP-10285 Options to set match_limit and match_limit_recursion are
added to re:run. The option report_errors is also added to
get more information when re:run fails due to limits or
compilation errors.
OTP-10342 The pre-defined types array/0, dict/0, digraph/0, gb_set/0,
gb_tree/0, queue/0, set/0, and tid/0 have been deprecated.
They will be removed in Erlang/OTP 18.0.
Instead the types array:array/0, dict:dict/0,
digraph:graph/0, gb_set:set/0, gb_tree:tree/0, queue:queue/0,
sets:set/0, and ets:tid/0 can be used. (Note: it has always
been necessary to use ets:tid/0.)
It is allowed in Erlang/OTP 17.0 to locally re-define the
types array/0, dict/0, and so on.
New types array:array/1, dict:dict/2, gb_sets:set/1,
gb_trees:tree/2, queue:queue/1, and sets:set/1 have been
added.
A compiler option, nowarn_deprecated_type, has been
introduced. By including the attribute
-compile(nowarn_deprecated_type).
in an Erlang source file, warnings about deprecated types can
be avoided in Erlang/OTP 17.0.
The option can also be given as a compiler flag:
erlc +nowarn_deprecated_type file.erl
OTP-10842 Calls to erlang:open_port/2 with 'spawn' are updated to
handle space in the command path.
OTP-10908 Dialyzer's unmatched_return warnings have been corrected.
OTP-11186 Forbid unsized fields in patterns of binary generators and
simplified v3_core's translation of bit string generators.
(Thanks to Anthony Ramine.)
OTP-11204 The version of the PCRE library Used by Erlang's re module is
raised to 8.33 from 7.6. This means, among other things,
better Unicode and Unicode Character Properties support. New
options connected to PCRE 8.33 are also added to the re
module (ucd, notempty_atstart, no_start_optimize). PCRE has
extended the regular expression syntax between 7.6 and 8.33,
why this imposes a potential incompatibility. Only very
complicated regular expressions may be affected, but if you
know you are using obscure features, please test run your
regular expressions and verify that their behavior has not
changed.
OTP-11205 The option dupnames did not work as intended in re. When
looking for names with {capture, [Name, ...]}, re:run
returned a random instance of the match for that name,
instead of the leftmost matching instance, which was what the
documentation stated. This is now corrected to adhere to the
documentation. The option {capture,all_names} along with a
re:inspect/2 function is also added to further help in using
named subpatterns.
OTP-11353 Added dict:is_empty/1 and orddict:is_empty/1. (Thanks to
Magnus Henoch.)
OTP-11388 A call to either the garbage_collect/1 BIF or the
check_process_code/2 BIF may trigger garbage collection of
another processes than the process calling the BIF. The
previous implementations performed these kinds of garbage
collections without considering the internal state of the
process being garbage collected. In order to be able to more
easily and more efficiently implement yielding native code,
these types of garbage collections have been rewritten. A
garbage collection like this is now triggered by an
asynchronous request signal, the actual garbage collection is
performed by the process being garbage collected itself, and
finalized by a reply signal to the process issuing the
request. Using this approach processes can disable garbage
collection and yield without having to set up the heap in a
state that can be garbage collected.
The garbage_collect/2, and check_process_code/3 BIFs have
been introduced. Both taking an option list as last argument.
Using these, one can issue asynchronous requests.
code:purge/1 and code:soft_purge/1 have been rewritten to
utilize asynchronous check_process_code requests in order to
parallelize work.
Characteristics impact: A call to the garbage_collect/1 BIF
or the check_process_code/2 BIF will normally take longer
time to complete while the system as a whole wont be as much
negatively effected by the operation as before. A call to
code:purge/1 and code:soft_purge/1 may complete faster or
slower depending on the state of the system while the system
as a whole wont be as much negatively effected by the
operation as before.
OTP-11399 Improve the documentation of the supervisor's via reference.
(Thanks to MaximMinin.)
OTP-11552 orddict:from_list/1 now uses the optimized sort routines in
the lists module instead of (essentially) an insertion sort.
Depending on the input data, the speed of the new from_list/1
is anything from slightly faster up to several orders of
magnitude faster than the old from_list/1. (Thanks to Steve
Vinoski.)
OTP-11589 If option 'binary' was set for standard_input, then c:i()
would hang if the output was more than one page long - i.e.
then input after "(c)ontinue (q)uit -->" could not be read.
This has been corrected. (Thanks to José Valim)
OTP-11616 EEP43: New data type - Maps
With Maps you may for instance:
-- M0 = #{ a => 1, b => 2}, % create associations
-- M1 = M0#{ a := 10 }, % update values
-- M2 = M1#{ "hi" => "hello"}, % add new associations
-- #{ "hi" := V1, a := V2, b := V3} = M2. % match keys with
values
For information on how to use Maps please see the Reference
Manual.
The current implementation is without the following features:
-- No variable keys
-- No single value access
-- No map comprehensions
Note that Maps is experimental during OTP 17.0.
OTP-11677 stdlib/lists: Add function droplast/1 This functions drops
the last element of a non-empty list. lists:last/1 and
lists:droplast/1 are the dual of hd/1 and tl/1 but for the
end of a list. (Thanks to Hans Svensson)
OTP-11682 Allow all auto imports to be suppressed at once. Introducing
the no_auto_import attribute: -compile(no_auto_import).
Useful for code generation tools that always use the
qualified function names and want to avoid the auto imported
functions clashing with local ones. (Thanks to José Valim.)
OTP-11684 When tab completing the erlang shell now expands zero-arity
functions all the way to closing parenthesis, unless there is
another function with the same name and a different arity.
(Thanks to Pierre Fenoll.)
OTP-11685 supervisor_bridge does no longer report normal termination of
children. The reason is that in some cases, for instance when
the restart strategy is simple_one_for_one, the log could be
completely overloaded with reports about normally terminating
processes. (Thanks to Artem Ocheredko)
OTP-11707 The type annotations for alternative registries using the
{via, Module, Name} syntax for sup_name() and sup_ref() in
the supervisor module are now consistent with the
documentation. Dialyzer should no longer complain about valid
supervisor:start_link() and supervisor:start_child() calls.
(Thanks to Caleb Helbling.)
OTP-11709 Two Dets bugs have been fixed. When trying to open a short
file that is not a Dets file, the file was deleted even with
just read access. Calling dets:is_dets_file/1 with a file
that is not a Dets file, a file descriptor was left open.
(Thanks to Håkan Mattsson for reporting the bugs.)
OTP-11726 Fix race bug in ets:all. Concurrent creation of tables could
cause other tables to not be included in the result. (Thanks
to Florian Schintke for bug report)
OTP-11728 The Erlang Code Preprocessor (epp) could loop when
encountering a circular macro definition in an included file.
This bug has been fixed.
Thanks to Maruthavanan Subbarayan for reporting the bug, and
to Richard Carlsson for providing a bug fix.
OTP-11747 erl_eval now properly evaluates '=='/2 when it is used in
guards. (Thanks to José Valim)
OTP-11752 Calls to proplists:get_value/3 are replaced by the faster
lists:keyfind/3 in io_lib_pretty. Elements in the list are
always 2-tuples. (Thanks to Andrew Thompson)
OTP-11758 A qlc bug where filters were erroneously optimized away has
been fixed. Thanks to Sam Bobroff for reporting the bug.
OTP-11770 A number of compiler errors where unusual or nonsensical code
would crash the compiler have been reported by Ulf Norell and
corrected by Anthony Ramine.
OTP-11771 The Erlang Code Linter (erl_lint) has since Erlang/OTP R13B
emitted warnings whenever any of the types arity(),
bitstring(), iodata(), or boolean() were re-defined. Now
errors are emitted instead.
OTP-11772 Since Erlang/OTP R16B the Erlang Core Linter (erl_lint) has
not emitted errors when built-in types were re-defined. This
bug has been fixed. (Thanks to Roberto Aloi.)
OTP-11807 The encoding option of erl_parse:abstract/2 has been extended
to include none and a callback function (a predicate).
OTP-11817 The functions sys:get_state/1,2 and sys:replace_state/2,3 are
fixed so they can now be run while the process is sys
suspended. To accomplish this, the new callbacks
Mod:system_get_state/1 and Mod:system_replace_state/2 are
added, which are also implemented by the generic behaviours
gen_server, gen_event and gen_fsm.
The potential incompatibility refers to
-- The previous behaviour of intercepting the system message
and passing a tuple of size 2 as the last argument to
sys:handle_system_msg/6 is no longer supported.
-- The error handling when StateFun in sys:replace_state/2,3
fails is changed from being totally silent to possibly (if
the callback module does not catch) throw an exception in the
client process.
(Thanks to James Fish and Steve Vinoski)
OTP-11828 Export zip option types to allow referal from other modules.
Thanks to Pierre Fenoll and Håkan Mattson
OTP-11840 The module pg has been deprecated and will be removed in
Erlang/OTP 18.
--- syntax_tools-1.6.14 -------------------------------------------------
OTP-11632 Add implementation of having erl_tidy print to screen instead
of writing to the file provided. (Thanks to Aaron France)
OTP-11663 Support Maps syntax in syntax_tools (Thanks to Anthony
Ramine).
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- test_server-3.7 -----------------------------------------------------
OTP-10842 Calls to erlang:open_port/2 with 'spawn' are updated to
handle space in the command path.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- toolbar -------------------------------------------------------------
OTP-10915 Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
--- tools-2.6.14 --------------------------------------------------------
OTP-11568 Removed the support for the query keyword from emacs mode
(Thanks to Paul Oliver)
OTP-11601 Emacs mode improvements (Thanks to Steve Vinoski)
OTP-11692 cover can run on itself. Also, support for reading BEAM files
produced by ancient OTP versions before R9C has been removed.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
OTP-11764 Support maps in cover
OTP-11786 The emacs erlang mode now match erlang keywords more
carefully (Thanks to Steve Vinoski)
OTP-11788 The emacs erlang-mode now auto loads for more file types
(Thanks to Phil Hagelberg)
--- tv ------------------------------------------------------------------
OTP-10915 Removed gs based applications and gs based backends. The
observer application replaces the removed applications.
--- typer-0.9.6 ---------------------------------------------------------
OTP-11616 EEP43: New data type - Maps
With Maps you may for instance:
-- M0 = #{ a => 1, b => 2}, % create associations
-- M1 = M0#{ a := 10 }, % update values
-- M2 = M1#{ "hi" => "hello"}, % add new associations
-- #{ "hi" := V1, a := V2, b := V3} = M2. % match keys with
values
For information on how to use Maps please see the Reference
Manual.
The current implementation is without the following features:
-- No variable keys
-- No single value access
-- No map comprehensions
Note that Maps is experimental during OTP 17.0.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- webtool-0.8.10 ------------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- wx-1.2 --------------------------------------------------------------
OTP-11586 Refactored C++ code, fixed crashes and a deadlock on linux.
OTP-11678 Some local implementations of removing the last element from
a list are replaced by lists:droplast/1. Note that this
requires at least stdlib-2.0, which is the stdlib version
delivered in OTP 17.0. (Thanks to Hans Svensson)
OTP-11699 Reworked the internal event handling to avoid crashes in
destroy objects. Thanks Tom for the bug report.
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
--- xmerl-1.3.7 ---------------------------------------------------------
OTP-11744 Application upgrade (appup) files are corrected for the
following applications:
asn1, common_test, compiler, crypto, debugger, dialyzer,
edoc, eldap, erl_docgen, et, eunit, gs, hipe, inets,
observer, odbc, os_mon, otp_mibs, parsetools, percept,
public_key, reltool, runtime_tools, ssh, syntax_tools,
test_server, tools, typer, webtool, wx, xmerl
A new test utility for testing appup files is added to
test_server. This is now used by most applications in OTP.
(Thanks to Tobias Schlager)
Erlang/OTP 17.0
This release of Erlang/OTP can be built from source or installed using pre-built packages for your OS or third-party tools (such as kerl or asdf).
docker run -it erlang:17.0
Erlang/OTP 17.0
