doc: changelog

Author: tjbck

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - 🛡️ **Iframe content security policy.** Administrators can now configure a Content-Security-Policy for all srcdoc iframes (Artifacts, tool embeds, file previews, citation modals) via the `IFRAME_CSP` environment variable, restricting what LLM-generated or user-uploaded HTML can load and execute inside previews. [Commit](https://github.com/open-webui/open-webui/commit/3bba1c227059a44c7eeefa97b8c69a63bf4f3454)
 - 🎛️ **Granular markdown rendering controls.** Users can now independently disable Markdown rendering for user messages and assistant responses from Interface settings, preventing unintended formatting when pasting text that contains Markdown-sensitive characters. [Commit](https://github.com/open-webui/open-webui/commit/4a1064cefd6f48a8b3b02cd31f77838c8802b635)
 - 🔧 **Terminal proxy response headers.** Administrators can now inject custom response headers into terminal proxy responses via the `TERMINAL_PROXY_HEADERS` environment variable (JSON object), enabling deployment-specific security headers like sandbox policies for proxied content. [Commit](https://github.com/open-webui/open-webui/commit/8d3133fe2835122bffaa4f2ce584730bc9c78981)
+- 🔌 **Channel streaming and tool support.** Mentioning a model in a Channel now streams responses in real time and supports the full chat completion pipeline, including native and default function calling, built-in tools (web search, image generation), user tools, MCP tools, filters, and RAG knowledge injection — the same capabilities available in standard chats.
 
 ### Fixed