Erlang/OTP 28.5 is the fourth maintenance patch package for OTP 28, with mostly bug fixes as well as a few improvements.

HIGHLIGHTS #

There is a new “Secure Coding Guidelines” document in Design Principles describing how to write secure Erlang code.

Improvements and New Features #

• A new configure option --{enable,disable}-use-embedded-3pp-alternatives has been added. When enabled, configure is forced to find alternatives, to a subset, of the embedded third-party products (3pps) in the runtime system, and when disabled, configure will use all internal embedded 3pps. Currently this option affects zstd, zlib, ryu (with STL), openssl and tcl. The default is to use all built-in embedded 3pps except for zlib which by default will use zlib on the OS if available.

  Requirements for alternatives:

  • zstd - Static library and include files of at least version 1.5.6 needs to be available.
  • zlib - Library and include files of at least version 1.2.5 needs to be available.
  • ryu (with STL) - A usable C++ compiler with C++17 support.
  • openssl - No requirements. Our own MD5 implementation will be used.
  • tcl - The strerrorname_np() function (introduced in glibc 2.32) mapping errno integers to symbolic names needs to be available.

  The argument embedded_3pps has been added to erlang:system_info/1. It returns a map with information about the use of embedded 3pps in the runtime system.

For details about bugfixes and potential incompatibilities see the Erlang 28.5 README

The Erlang/OTP source can also be found at GitHub on the official Erlang repository, https://github.com/erlang/otp

Download links for this and previous versions are found here:

• https://www.erlang.org/downloads