Open WebUI 0.13.3 agents, Agent Framework 1.25 breaks
Updated 1 min read
Summary
Agent Radar 2026-11-09: Open WebUI 0.13.3 adds coding agents and security fixes; Agent Framework 1.25.0 needs Python 3.11. Plus MAF vs Semantic Kernel.
Agent Radar tracked two launches as of 2026-11-09, covering the window 2026-11-02 to 2026-11-09 for tools we have not written about this week. Preview, nightly, alpha, dev and release-candidate builds were left out.
At a glance
| Launch | Tool | Released | What changed |
|---|---|---|---|
| Open WebUI 0.13.3 brings coding agents into chats | Open WebUI | 2026-11-08 | Coding agents as models and in automations; Tether desktop app; Auto tool permissions; schema migration; Preload files off by default; unlisted security fixes |
| Agent Framework 1.25.0 drops Python 3.10, caps MCP | Microsoft Agent Framework | 2026-11-07 | Python >=3.11; MCP discovery capped at 1,000 items and 30-second timeouts; scope-bound workflow agents; GenAI span names; seven breaking entries |
What changed
- Open WebUI wants a backup and a full-fleet update: 0.13.1 changes the database schema and does not support rolling updates. It also has security fixes that the changelog does not list, so 0.13.3 is the version to land on.
- Attached files may disappear for some models: with native function calling, Open WebUI no longer preloads attachments. Models without tools need Preload files switched back on.
- Agent Framework 1.25.0 needs migration notes, not just a pin bump: large MCP catalogs, shared workflow agents, span-name dashboards and declarative MCP handlers all change behavior.
Questions
Is Open WebUI 0.13.3 safe to install over 0.12.x? Yes, after a database backup, and with every instance updated together. Retrieval defaults also changed (top-k 10 instead of 3), so prompts with knowledge get longer.
Should I still start projects on Semantic Kernel? Microsoft points new agent work to Agent Framework, while Semantic Kernel keeps getting fixes (Python 1.47.0 on November 5). Our new guide, Microsoft Agent Framework vs Semantic Kernel, covers the API differences, the support window and the migration path. More options are in the frameworks category.
In this issue
Rank 1 Open WebUI 0.13.3 brings coding agents into chats
Open WebUIOpen WebUI 0.13.1 to 0.13.3 (Nov 8, 2026) bring coding agents into chats and automations, the Tether desktop app, Auto tool permissions and security fixes.
Category: Agent infra
Pricing: Not stated
Rank 2 Agent Framework 1.25.0 drops Python 3.10, caps MCP
Microsoft Agent FrameworkAgent Framework 1.25.0 for Python (Nov 7, 2026) requires Python 3.11, bounds MCP discovery and timeouts, scopes workflow agents and renames workflow spans.
Category: Frameworks
Pricing: Open source
