Build OTP-27.x

[nikitalocalhost]

Is your feature request related to a problem? Please describe.

PPA states: A fork of the official Erlang packages for Debian, produced to package most recent releases as they come out.. OTP-27 is 3+ months old

Describe the solution you'd like

• Create new branches for OTP-27
• Optionally create new PPA archive for new release
• Build it, ship it

Describe alternatives you've considered

No response

Additional context

No response

[michaelklishin]

@nikitalocalhost your proposed solution misses the key step: syncing the repo with the upstream. This usually takes longer than every other step combined.

You are welcome to contribute those changes, this is open source software after all.

Team RabbitMQ has no incentives to work on Erlang 27 packages at this point.

[michaelklishin]

As expected, upstream patches do not apply cleanly to Erlang 27.1.2 and must be updated. There is an Erlang 27 RC branch upstream but it hasn't been updated in 9 months and it runs into package version conflicts on at least Ubuntu 24.04 (a version comparable to Debian Bookworm in lineage).

So as expected, the "create new branches for OTP" step will require manually updating N Debian patches for 27.1.x.

[michaelklishin]

Erlang 27 requires autoconf 2.72 which fortunately was available from a core (Canonical-developed) Ubuntu PPA.

However, it cannot be installed on Debian Bullseye because the package uses zstd compression, and apt in Bullseye does not support it.

Therefore Erlang 27 packages are and will be provided for Ubuntu 24.04, Ubuntu 22.04 and Debian Bookworm only.

There is a separate Launchpad repository, Team RabbitMQ's mirrors will be updated later. Now that RabbitMQ 4.0.4 is out with Erlang 27 support, we can begin distributing 27.x packages using the repos most of our userbase uses.