docs: v1.13.0 withdrawn; version notes name v1.13.1
docs: sign-in usernames in v1.13.1; version notes now name v1.13.0
docs: security hardening, sealed instance sync and key pinning (#296) - new env vars (SESSION_SECRET_PREVIOUS, FORWARD_AUTH_ALLOWED_PORTS, TRUSTED_CLIENT_IP_HEADER, INSTANCE_SYNC_TIMEOUT_MS) and INSTANCE_SLAVES syncKeyId/syncPublicKey; compose pass-through note - secret rotation, admin env credentials, password policy, sessions - forward auth ports, portal rate limits, header stripping - instance sync sealing, key pinning, instance editing, CA keys - WAF directive rules, redaction, quick templates; placeholders - REST endpoints, troubleshooting entries, upgrade checklist - documentation IP ranges in Geo Blocking examples Claude-Session: https://claude.ai/code/session_015yn7EDT9FJnxBqP6AFCN8b
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