### Fixes

- Update/doctor: avoid materializing `groupAllowFrom` for channel schemas that reject it, so package-swap doctor repairs do not fail on externalized Slack configs.

- Gateway/media: prevent image filenames from overriding generic non-image byte sniffing, so zip/octet-stream payloads mislabeled as images are offloaded or rejected before they become inline image attachments.

- Plugins/web search: downgrade stale optional provider installs to warnings so Gateway and doctor repair paths keep running after startup provider selection. Refs #82313. Thanks @crackmac.

- Telegram/Gateway: route targeted Telegram `/stop@bot` messages onto the control lane without cached bot metadata and match gateway stop requests across raw/canonical session aliases. (#82298) Thanks @VACInc.

- Providers: preserve required `reasoning_content` replay for Kimi K2.6/K2 thinking and MiMo V2.6 OpenAI-compatible tool-call follow-up turns while keeping the stock OpenAI/Qwen strip path intact. Fixes #82139. Thanks @yimao.

- Memory search: stop using chokidar write-stability polling for memory and QMD watchers so large Markdown extraPath trees no longer build up regular file descriptors; changed files now settle through the existing debounced sync queue. Fixes #77327 and #78224. (#81802) Thanks @frankekn, @loyur, and @JanPlessow.

- Message tool: rename the Discord channel-create schema field exposed to models from `type` to `channelType`, avoiding NVIDIA NIM JSON Schema parser failures while still accepting legacy `type` tool calls. (#78920) Thanks @YashSaliya.

## 2026.5.14