Vellum Assistantv0.12.6
Released September 30, 2026Major
iOS Android
What changed
- New featureAdded document revision history with snapshot browsing and restoration
- UXEnhanced document editor with a new toolbar containing links, comments, and placeholders
- New featureAdded Claude Sonnet 5.5 to the model catalog
- New featureEnabled previews for .xlsx workbooks in the chat file drawer
- UXRefreshed All Chats layout and added live task activity indicators
- New featureAdded Serply as a bring-your-own-key web search provider
- PerformanceGeneral bug fixes and stability improvements
Original release notes
Documents now keep revision history. Browse snapshots and restore an earlier version anytime. The document editor has a real toolbar with links, a comments button, and a placeholder. Claude Sonnet 5.5 joins the model catalog. .xlsx workbooks now preview in the chat file drawer. All Chats got a layout refresh and shows live task activity. Serply joins the web search providers as a bring-your-own-key option. Bug fixes and stability improvements to keep your assistant running smoothly.