[erlang-questions] Erlang/OTP 20.1 has been released,
Sun Oct 8 12:34:51 CEST 2017
Please note that the source tarball
http://erlang.org/download/otp_src_20.1.tar.gz and the associated manual
http://erlang.org/download/otp_doc_man_20.1.tar.gz are not stored in the
compressed format despite having the ".gz" extension.
On Wed, Sep 27, 2017 at 5:01 AM, Henrik Nord X <henrik.x.nord@REDACTED>
> Erlang/OTP 20.1 is the first service release for the 20 major release.
> The service release contains mostly bug fixes and characteristics
> improvements but also some new features.
> Some highlights for 20.1
> crypto, public_key: Extend crypto and public_key functions sign and
> verify with:
> support for RSASSA-PS padding for signatures and for
> saltlength setting
> X9.31 RSA padding.
> sha, sha224, sha256, sha384, and sha512 for dss
> signatures as mentioned in NIST SP 800-57 Part 1.
> ripemd160 to be used for rsa signatures.
> A new tuple in crypto:supports/0 reports supported MAC
> Add service option decode_format to allow incoming messages to
> be decoded into maps
> instead of records.
> Decode performance has been improved.
> Add service/transport option avp_dictionaries to give better
> support for dictionaries only defining AVPs.
> erts: Upgraded the ERTS internal PCRE library from version 8.40 to
> version 8.41.
> erts, kernel, tools: Profiling with lock counting can now be fully
> toggled at runtime in
> the lock counting emulator (-emu_type lcnt). Everything
> is enabled by default to match the old behavior, but
> specific categories can be toggled at will with minimal
> runtime overhead when disabled. Refer to the
> documentation on lcnt:rt_mask/1 for details.
> lcnt:collect and lcnt:clear will no longer block all
> other threads in the runtime system. This makes it possible to run
> the lock counting
> under heavier load.
> erts: The zlib module has been refactored and all its operations
> will now yield appropriately,
> allowing them to be used freely in concurrent applications.
> erts, tools: Add erlang:iolist_to_iovec/1, which converts an
> iolist() to an erlang:iovec(), which is suitable for use
> with enif_inspect_iovec().
> erts: Add new nif API functions for managing an I/O Queue.
> The added functions are: enif_ioq_create(), enif_ioq_destroy(),
> enif_ioq_enqv(), enif_ioq_deq(), enif_ioq_peek(),
> enif_inspect_iovec(), enif_free_iovec()
> Reading of crash dumps with many binaries is optimized.
> A progress bar is shown when the detail view for a process is
> The cdv script now sets ERL_CRASH_DUMP_SECONDS=0 to
> avoid generating a new crash dump from the node running the
> Crashdump Viewer.
> Add system statistics and limits to frontpage in
> public_key, ssl**:
> Improved error propagation and reports
> ssh: A new option modify_algorithms is implemented. It
> enables specifying changes on the default algorithms
> list. See the reference manual and the SSH User's Guide
> chapter "Configuring algorithms in SSH".
> tools/xref: The predefined Xref analysis locals_not_used now
> the -on_load() attribute and does not report unused functions.
> tools/fprof: When sampling multiple processes and analyzing
> with totals set to true, the output now sums together
> all caller and callee entries which concerns the same
> function. Previous behaviour was to report each
> contributing entry separately.
> You can find the README and the full listing of changes for this
> service release at
> The source distribution and binary distributions for Windows can be
> downloaded from
> Note: To unpack the TAR archive you need a GNU TAR compatible program.
> For installation instructions please consult the README file that is
> of the distribution.
> The Erlang/OTP source can also be found at GitHub on the official
> repository, https://github.com/erlang/otp with tag OTP-20.1
> The 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
> Please report any new issues via Erlang/OTPs public issue tracker
> We want to thank all of those who sent us patches, suggestions and bug
> Thank you!
> The Erlang/OTP Team at Ericsson
> erlang-questions mailing list
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