Add release naming description

Signed-off-by: Sergei Lukianov <[email protected]>

docs/reference/releases.md

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+# Release Naming
+
+CalVer-style is used starting with the release in December 2024.
+
+`YY.MINOR.PATCH` where:
+
+- `YY`: short calendar year (24, 25, 26)
+- `MINOR`: zero-padded release number in the calendar year (01, 02, 03) - that's what we'll call an actual release
+- `PATCH`: patch number for a specific release (1, 2, 3) - just some bug fixes for a release
+
+First release of the 2025 is 25.01 and patch releases for it named 25.01.1, 25.01.2, etc (if needed).
+Last release of the 2024 is 24.09, it was originally named B2 (Beta 2).
+
+API backward compatibility and in-place upgrades are guaranteed starting with the B1 release (Oct 24 2024).
+Some new features may require manual intervention or installation from scratch to get them enabled, in this case, it
+will be explicitly mentioned in the release notes.