v1.50.106 – v1.50.109 — 2026-08-21

• feat(cluster): auto-repair drift in scheduler every 10 minutes (1.50.106)
• feat(diagnostics): disk space + deferred queue checks (1.50.108)
• feat(diagnostics): license validity check (1.50.109)
• feat(domains): per-domain toggle — allow dynamic sender IPs (1.50.107)
• release: update changelog pill ranges for v1.50.105
• release: update changelog pill ranges for v1.50.106
• release: update changelog pill ranges for v1.50.107
• release: update changelog pill ranges for v1.50.108