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@garazdawi garazdawi released this Mar 12, 2019

OTP 21.3

Erlang/OTP 21.3 is the third service release for the 21st major release
with improvements, as well as a few features!


  • Kernel:

    • The standard logger handler, logger_std_h, now has a new internal
      feature for log rotation. For full information see the documentation.
  • SSL:

    • The Reason part of the error return from the functions connect and
      handshake has a better and documented format. This is a potential
      incompatibility. See the documentation.
    • Refactoring of state handling has improved the TLS application data
      throughput and reduced CPU overhead
    • Code optimizations has reduced CPU load for encryption/decryption,
      especially for Erlang's distribution protocol over TLS
    • Now supports active N
  • Erl_interface:

    • Support for plugin of a user supplied socket implementation has been added.
  • OTP:

    • The HTML reference documentation now shows the OTP version where
      modules and functions were first introduced. Versions of OTP older than R13B04 is not shown in the reference

For a full list of details see:

Pre-built versions for Windows can be fetched here:

Online documentation can be browsed here:

The Erlang/OTP source can also be found at GitHub on the official
Erlang repository:

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

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