Versioning and Upgrade Cheat Sheet
Keep the key rules for release labeling, pinning, and upgrade handling at your fingertips.
Core rule When should the major version move? When you introduce backward-incompatible changes to the public API That is the core SemVer promise. Two release paths Which path fits a new optional field? Optional additive fields usually belong on the backward-compatible path. Handle the shortcut “We updated the changelog, so the breaking change is fine.” Someone is treating notice as equivalent to migration safety. Your line “Notice matters, but it does not replace a version policy, a test path, or time for customers to adapt. Those are different parts of trust.” Do not confuse communication with compatibility handling. It separates…
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