From Fedora Project Wiki

Erlang 25


Update Erlang/OTP to version 25.


Current status

Detailed Description

Upgrade Erlang to version 25 which brings a lot of changes. Just a few highlights from many:

Aside from this, we plan to further improve quality of Erlang and related packages. These are shortcomings we want to address:

  • Finish switching to rebar3 as a main build tool and deprecate rebar2.
  • Every daemon written in Erlang has its own logging solution which doesn't use neither syslog nor Journald. We should start switching them to unified logger.
  • We should allow D-Bus API via erlang-dbus library or any other recent implementations..
  • SELinux rules for main Erlang applications (Ejabberd, CouchDB, RabbitMQ) are still outdated or missing.

Benefit to Fedora

Fedora users, both developers and end-users, will have visible benefits from using Fedora-provided packages. Namely:

  • Improved scalability and robustness.
  • Much easier developing and debugging.


Upgrade/compatibility impact

  • Binaries compiled with Erlang 22 and older are no longer compatible.

How To Test

  • Ensure that high-grade Erlang applications are still working:
Name Tested
Package-x-generic-16.pngcouchdb No (package was retired :( )
Package-x-generic-16.pngejabberd No
Package-x-generic-16.pngelixir No
Package-x-generic-16.pngrabbitmq-server No
Package-x-generic-16.pngriak No (package was retired :( )
Package-x-generic-16.pngwings No
  • Collect feedback from volunteers regarding their experience with this Erlang/OTP version

User Experience

Users will get more robust, scalable, and fast Erlang applications.


The following packages must be rebuilt: NIF-libraries.

Contingency Plan

  • Contingency mechanism: None necessary. Instead of falling back to the previous version we should fix existing packages in order to help the Community. We should also monitor upstream development process for potentially discovered issues and proactively apply patches (as we already did with Erlang R14, Erlang R15, Erlang R16, Erlang 17, Erlang 18, Erlang 19, Erlang 20, Erlang 21, Erlang 22, Erlang 23, and Erlang 24). It should be noted that this change consists from an independent or loosely coupled smaller changes. If we fail to deliver some changes in time, we should reschedule these exact changes to the future Fedora release while keeping already implemented ones.
  • Contingency deadline: N/A
  • Blocks release? N/A
  • Blocks product? N/A


Release Notes

Erlang/OTP 25.0 is available in Fedora 37.