v0.8.47
simstudioai/simv0.8.47Sep 19, 2026by github-actions[bot]
Upgrading?
AI Summary
This release introduces enhanced AI Agent Builders with full MCP support and a dedicated Sim MCP server. It also includes model fallbacks, knowledge base improvements, and various bug fixes for connectors and file search.
Key Highlights
- Best AI Agent Builders with MCP Support (#7999)
- Sim MCP server for the full Sim API (#7985)
- Model fallbacks to Agent, Evaluator, and Router (#7972)
- Knowledge ranking and caching improvements (#7996, #7989)
- Bug fixes for file search and document recovery (#7995, #7993)
Breaking Changes
- Access requests feature moved from rollout flag to EE
New Features
- Best AI Agent Builders with MCP Support
- Model fallbacks for Agent, Evaluator, and Router
- Sim MCP server for the full Sim API
- Access requests feature moved to EE
- Centralized UI styling and refactoring
- Improved accessibility for icon-only buttons
Full Release Notes
## Features - feat(library): Best AI Agent Builders with MCP Support (#7999) - feat(workflows): add model fallbacks to Agent, Evaluator, and Router (#7972) - feat(mcp): Sim MCP server for the full Sim API (#7985) - feat(access-requests): remove rollout flag and move feature into ee (#7986) ## Improvements - improvement(knowledge): rank inside the permitted set for organization search (#7996) - improvement(knowledge): cache admitted usage checks on the search path (#7989) - refactor(emcn): centralize product icon-button padding (#7987) - refactor(emcn): centralize document file-type icons (#7984) - refactor(emcn): centralize composer action button appearance (#7983) - refactor(ui): centralize bulk-action buttons in EMCN (#7982) - refactor(ui): remove styles already supplied by EMCN controls (#7979) - refactor(emcn): share filled stop icon across chat controls (#7977) ## Bug Fixes - fix(file-search): avoid foreground GIN cleanup stalls (#7995) - fix(knowledge): preserve live document processing during recovery (#7993) - fix(knowledge): preserve live document jobs during recovery (#7994) - fix(connectors): explain disabled settings with tooltips (#7981) - fix(settings): stabilize group search and modal dropdowns (#7980) - fix(traces): make trace backfills bounded and resumable (#7974) - fix(connectors): save service account changes with source settings (#7978) - fix(a11y): name icon-only buttons across product UI (#7975) ## Contributors - @BillLeoutsakosvl346 - @TheodoreSpeaks - @icecrasher321 - @mzxchandra - @waleedlatif1 [View changes on GitHub](https://github.com/simstudioai/sim/compare/v0.8.46...v0.8.47)
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