Compatibility Matrix

Use this matrix before upgrading production systems.

Layer	Compatibility rule
SDK vs Dev Tools	Keep the exact same semver release (X.Y.Z)
SDK vs Runtime	Keep within the same major.minor train
SDK vs Desktop/Web	Pin workspace release set for each app release
Proto vs Runtime	Proto contract drift is not supported

Verification commands

pnpm check:sdk-version-matrix
pnpm check:runtime-bridge-method-drift
pnpm check:scope-catalog-drift