[erlang-questions] Erlang/OTP 21.0-rc1 (Release Candidate)
Tristan Sloughter
t@REDACTED
Fri May 4 18:55:43 CEST 2018
We cut a new release today, 3.5.2, that builds with 21 fine.
Tristan
On Fri, May 4, 2018, at 7:58 AM, Andreas Schultz wrote:
> Hi,
>
> The RC breaks rebar3 badly, not sure if it's rebar's fault or a
> problem with the new logger...>
> With an up to date rebar3 clone:
>
> rebar3$ ./bootstrap
> (no logger present) unexpected logger message: {log,error,"Error
> in process ~p with exit value:~n~p~n",[<0.39.0>,{badarg,[{ets,loo-
> kup,[logger,proc_lib],[]},{logger_config,allow,3,[{file,"logger_c-
> onfig.erl"},{line,42}]},{proc_lib,crash_report,4,[{file,"proc_lib-
> .erl"},{line,508}]},{proc_lib,exit_p,3,[{file,"proc_lib.erl"},{li-
> ne,269}]}]}],#{error_logger=>#{emulator=>true,tag=>error},gl=><0.-
> 37.0>,pid=><0.39.0>,time=>-576460751953591}}> (no logger present) unexpected logger message: {log,error,"Error
> in process ~p with exit value:~n~p~n",[<0.39.0>,{badarg,[{ets,loo-
> kup,[logger,proc_lib],[]},{logger_config,allow,3,[{file,"logger_c-
> onfig.erl"},{line,42}]},{proc_lib,crash_report,4,[{file,"proc_lib-
> .erl"},{line,508}]},{proc_lib,exit_p,3,[{file,"proc_lib.erl"},{li-
> ne,269}]}]}],#{error_logger=>#{emulator=>true,tag=>error},gl=><0.-
> 37.0>,pid=><0.39.0>,time=>-576460751953591}}> ...
>
> And so on...
>
> Regards
> Andreas
>
> Henrik Nord X <henrik.x.nord@REDACTED> schrieb am Mi., 2. Mai 2018
> um 13:38 Uhr:>> OTP 21 Release Candidate 1
>>
>> This is the first of two planned release candidates before the
>> OTP 21>> release. The intention whit this release is that you as users try it>> and give us feedback if something does not work as expected.
>> Could be a>> bug,an unexpected incompatibility, a significant change of
>> characteristics in a negative direction, etc.
>>
>> Erlang/OTP 21 is a new major release with new features,
>> improvements as>> well as incompatibilities.
>>
>> Potential Incompatibilities
>>
>> * All Corba applications are now moved from the OTP repository
>> * A new Corba repository will be created
>> https://github.com/erlang>> * New applications ftp and tftp, moved from inets
>> * ssl no longer supports 3_DES cipher suites or RSA-key exchange
>> cipher suites by default
>> * erlang:monitor on a primitive node (erl_interface, jinterface,
>> etc)>> will no longer fail with badarg exception. Instead a monitor will be>> created, but it will only supervise the connection to the node.
>>
>> Highlights
>>
>> Erts:
>>
>> * Enhanced IO scalability
>> * Support for usage of distribution controller processes for
>> alternative transports, routing etc
>> * compact instructions on 64bit systems for code below 4GB 20%
>> less>> memory for loaded code
>> * Rewrite of the efile-driver with NIFs and "Dirty schedulers"
>> resulting in faster file operations
>> * non-smp VM removed
>> * link and monitor optimized for scalability
>> * os:getenv/putenv now work on thread-safe emulation. No longer
>> in>> sync with libc getenv(3). Manual synchronization will be
>> needed.>>
>> Compiler:
>> * Misc compiler optimizations including contributions from the
>> Elixir team resulting in 10% improvements in benchmarks
>> * "Tuple calls" have been removed from the run-time system.
>> * Code such as f({ok, Val}) -> {ok, Val} is now automatically
>> rewritten to f({ok, Val} = Tuple) -> Tuple. this reduces code>> size, execution time, and removed GC pressure.
>> * More information in stacktrace from a number of operators
>> * erlang:get_stacktrace/0 deprecated to be replaced with try ...>> catch C:R:Stacktrace -> ...
>> * Creation of small maps with literal keys optimized.
>>
>> Security:
>> * DTLS support in SSL
>> * Enhanced support for distribution over TLS
>> * "unsecure" ciphers removed from defaults in SSL and SSH.
>> * A new option value defined to facilitate implementing exec
>> servers. Old option kept for compatibility, but now gives
>> errors>> on stderror.
>>
>> Standard libraries:
>> * New API for logging, logger
>> * New uri_string module for parsing URIs according to "The
>> standard"
>> * New function lists:search(list,fun/1) -> {ok, Value} | false
>> * Changed default behaviour of .erlang loading. escript, erlc,
>> dialyzer and typer no longer load an .erlang at all.
>>
>> For more details see
>> http://erlang.org/download/otp_src_21.0-rc1.readme
>>
>> Pre built versions for Windows can be fetched here:
>> http://erlang.org/download/otp_win32_21.0-rc1.exe
>> http://erlang.org/download/otp_win64_21.0-rc1.exe
>>
>> Online documentation can be browsed here:
>> http://erlang.org/documentation/doc-10.0-rc1/doc/
>>
>> The Erlang/OTP source can also be found at GitHub on the official
>> Erlang repository,
>> https://github.com/erlang/otp with tag OTP-21.0-rc1
>>
>>
>> Thank you for all your contributions!
>> _______________________________________________
>> erlang-questions mailing list
>> erlang-questions@REDACTED
>> http://erlang.org/mailman/listinfo/erlang-questions
> --
> --
> Dipl.-Inform. Andreas Schultz
>
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