v0.4.0

v0.4.0 - 20 August 2026

🎉 New Features

• Config: Split secrets and add validation options d4d1009 by @MarchSnow-1
• Edge: Harden bootstrap and FAKE-IP routing 1f65ffa by @MarchSnow-1
• Center: Validate registrations and enforce edge limits 81c534f by @MarchSnow-1
• Auth: Add V2 route token and strict secret versioning b7a890c by @MarchSnow-1
• Agent: Harden client and server handshake paths 6bcab35 by @MarchSnow-1
• Edge: Verify V2 tokens and bind client IP b4b108c by @MarchSnow-1
• Center: Version secret pushes and fail closed on queue full 2eb8f66 by @MarchSnow-1

🐛 Bug Fixes

• Edge: Harden reconnect and registration result handling 3106d3d by @MarchSnow-1
• Edge: Make cache writes safe and flush on shutdown 2355171 by @MarchSnow-1
• Protocol: Harden PPv2 and message semantics cd2e20a by @MarchSnow-1
• Util: Harden ICMP and framed writes f0f1d7e by @MarchSnow-1
• Center: Bound connection resources and harden lifecycle 500e965 by @MarchSnow-1
• Center: Harden connection lifecycle 27fc280 by @MarchSnow-1

📝 Documentation Changes

• Sync token, config, FAKE-IP and PPv2 docs 83d5eb7 by @MarchSnow-1
• Add technical design guide and update agent guidance 43b212f by @MarchSnow-1
• Add agent collaboration guides 60872f5 by @MarchSnow-1

✅ Changes to Test Assets

• Add unit tests for protocol, auth, edge and utilities 39164a4 by @MarchSnow-1

Full Changelog: v0.3.0...v0.4.0