2.54.0!

The 2.54.0 release has arrived.

Y'll have had 4 years to migrate to a version that uses the new wire
protocol, and this release removes the code for the old protocol.

Tag is v2.54.0.

CI artifacts at:

  https://urldefense.com/v3/__https://github.com/bcpierce00/unison/actions/runs/25196373808__;!!IBzWLUs!XKkHdYUpmJXnouU0kLhht6LIqDjoAsbqinV1Jy2nCFb4Rgg11ZJ8C4MFJjKQKm5gliTFx6re2VMTWacDrQ$ 

NEWS:

## Changes in 2.54.0

Released 2026-05-01

  * Drop old wire protocol.  Unison will no longer interoperate with
    versions before 2.52.0 and will no longer read pre-2.52.0 archive
    files.
  * Document that LLM output is unwelcome in the Unison project (code,
    issues, mailinglists, etc.).

  * Add desktop file.

  Deprecation warning: support for external rsync will be removed;
  this may happen even in a micro release.

  DEPRECATION MAY HAPPEN WITH LESS THAN TYPICAL NOTICE:
  lablgtk is difficult to use safely, and future maintenance is
  unclear.  Implementing the GUI without lablgtk requires more effort
  than seems likely to happen.  Thus, it is possible that support for
  the unison GUI may end suddenly, on a particular platform, or on all
  platforms -- even in a micro release.  See
    https://urldefense.com/v3/__https://github.com/bcpierce00/unison/issues/1075__;!!IBzWLUs!XKkHdYUpmJXnouU0kLhht6LIqDjoAsbqinV1Jy2nCFb4Rgg11ZJ8C4MFJjKQKm5gliTFx6re2VMfqjRVrQ$   

  MAINTENANCE WARNING: No one is contributing to verify that the Mac
  GUI continues to work -- so it might not.  (So far, there are no
  reports of serious, frequent failures.)

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