Versioning

All five packages are released together under the same version, 12.MAJOR.MINOR:

Part Meaning
12 The Avalonia major version the packages are built for. It changes only with Avalonia's, so MarkView for Avalonia 13 will start at 13.0.0.
MAJOR Incremented for breaking changes: a removed or renamed API, or a change of behaviour that needs code changes.
MINOR Incremented for every other release: new features and fixes.

NuGet and update tools such as Dependabot read the version as MAJOR.MINOR.PATCH, so they treat a breaking release (12.3 → 12.4) as a minor update. To receive only compatible updates, use a floating version that fixes the second number, such as 12.4.*, rather than 12.*.

The release notes of each breaking release list what changed and how to update; Upgrading to 12.4 gathers the changes of the latest one.