This file will describe significant changes in Library.Template as they are introduced, especially if they require special consideration when merging updates into existing repos. This file is referenced by update-library-template.prompt.md and should remain in place to facilitate future merges, whether done manually or by AI.
Never leave a Library.slnx file in the repository.
You might even see one there even though this particular merge didn't bring it in.
This can be an artifact of having renamed Library.sln to Library.slnx in the template repo, but ultimately the receiving repo should have only one .sln or .slnx file, with a better name than Library.
Delete any Library.slnx that you see.
Migrate an .sln in the repo root to .slnx using this command:
dotnet solution EXISTING.sln migrateThis will create an EXISTING.slnx file. git add that file, then git rm the old .sln file.
Sometimes a repo will reference the sln filename in a script or doc somewhere.
Search the repo for such references and update them to the slnx file.