release: reproducible builds + upgrade compatibility policy #207
Description
Goal
Establish a release process suitable for mainnet: versioning, reproducible builds, and upgrade compatibility checks.
Scope
- Versioning policy (node + protocol)
- Build reproducibility guidance (CI artifacts)
- Upgrade/rollback story and compatibility gates
- Backwards/forwards compatibility tests for wire formats
Acceptance criteria
- Releases are published with checksums
- A compatibility gate exists in CI for protocol/wire changes