Release

1. Start from fresh origin/main in a clean worktree. Never disturb unrelated local changes.

2. Pick the requested version. If none is given, use the next patch after the latest vX.Y.Z tag.

3. Update elixir/mix.exs so version: "X.Y.Z" matches the intended tag. Search the old version and change other files only when they are true release-version sources, not examples.

4. Run make -C elixir all, then commit, push, create a PR, and land it.

5. Fetch the merged main commit. Verify its mix.exs version, then create an annotated tag on that exact commit:

   git tag -a vX.Y.Z <merged-commit> -m "Symphony vX.Y.Z"
   git push origin vX.Y.Z