Compatibility with earlier Elixir versions?

[lanodan]

Hi,

It looks like Elixir 1.15 broke backend configuration for Pleroma (seems related to us supporting loading configuration from database).
And as it's deprecated we should probably just move to :logger_backend anyway, but it's mix.exs advertises support only for Elixir 1.15+ while we'd want to keep support for previous Elixir versions (currently up to 1.12), is this intended?

[josevalim]

It may or may not work. Can you please try running the test suite on v1.12? If it works, maybe send a PR to add 1.12 to CI?

[lanodan]

Sadly it doesn't works as-is, tests do pass on Elixir 1.13 (didn't have 1.12 on hand) but it's missing Logger.Formatter.format_event/2 which doesn't seems to have an equivalent publicly exposed prior to Elixir 1.15.