v1.9.4 release notes

A major release that brings Video Editor v3.9 and bom-av v4.9.0.

Major new features

  • Video Editor v3.7 / v3.9 — xfade transitions, WebGL preview, auto-ducking
  • bom-av v4.9.0 — timeline extensions, schemaVersion 4
  • Pack local runtime — Bom.Ag runs Pack steps directly
  • Worker multithread — concurrent-job stability hardening

Stability

  • Per-step Codex timeouts (default 120 s)
  • Pack local runtime survivability
  • Event log integrity hardening
  • OperationCanceledException yields balanced text / tool blocks

Tool versions

  • bom-mcp v0.8.20 (better structured-block pasting)
  • bom-av v4.9.0 (timeline extensions)
  • bom-hwp v1.5.0 (HWP support)
  • MarkitDown 0.1.5
  • LibreOffice 25.8.6

Compatibility

  • VaultInitializerService.CurrentVersion = 105
  • BomSystemRecipes.RecipeSeedVersion = 73
  • AgentHubProtocol unchanged (backward compatible)
  • Pack manifest schemaVersion = 4 (required)
Warning

Packs at schemaVersion 3 or earlier are migrated automatically; the publishing safety gate must re-validate them.