HTD Lync Pro v0.3.0

Automatic discovery: Home Assistant now detects the GW-SL1 gateway on your network (via its DHCP lease / HTD MAC prefix), verifies the connection and model, and offers the integration with everything pre-filled — one click to add.

See CHANGELOG.md.

HTD Lync Pro v0.2.1

Brand icons now ship inside the integration (HA 2026.3+ mechanism), MIT license, CI validation, project wiki. See CHANGELOG.md.

HTD Lync Pro v0.2.0

First public release.

• Per-zone media players with real zone/source names from the unit
• Doorbell ring detection (undocumented 0x1F protocol message, reverse-engineered) with automatic post-chime state restore
• Snapshot/restore, follow-me audio (+ blueprint), announcements, party scenes
• Power-on volume caps, quiet hours
• Bass/treble/balance, DND/doorbell switches, inline source selects, built-in MP3 player
• GW-SL1 TCP and RS-232 serial support, diagnostics, full protocol docs

Verified against a real Lync 12 (firmware v3). See CHANGELOG.md and docs/PROTOCOL.md.