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v4.0.0 - Encrypted Memory profiles
Alex ACT Edition v4.0.0
Major privacy-contract release.
Breaking changes
- Plaintext Memory profiles are no longer read or written.
- Greeting check-in no longer decrypts profiles automatically.
- Profile writes are encrypted, atomic, local-only, and never auto-pushed.
- The profile CLI reports availability without printing profile content.
Authorization
Profile access uses ALEX_ACT_MEMORY_PASSWORD from the local process environment or a Git-ignored project env file. Missing authorization skips profiles; wrong passwords and tampering fail closed. Non-profile Memory channels remain available without the key.
Contract
The Extension floor remains 9.5.1 and manifest spec remains 1.4. Standard major-version upgrade review applies.
Validation
Edition 88/88 tests; Memory 43/43 tests; 9/9 security mutations caught; brain QA and capability coverage green.