v1.12.6
langflow-ai/langflowv1.12.6Oct 13, 2026by github-actions[bot]
Upgrading?
AI Summary
This release focuses on stability and security, introducing backports from version 1.13.0 and resolving various bugs related to MCP schemas, data type conversion, and LFX operations.
Key Highlights
- Security backports from v1.13.0 to v1.12.6
- Fixed MCP flow input schema derivation to avoid running stored component code
- Fixed Type Convert JSON and Message outputs to accept dictionary inputs
- Fixed handling of numeric columns in the Replace Value operation
Full Release Notes
<!-- Release notes generated using configuration in .github/release.yml at v1.12.6 --> ## What's Changed ### 🐛 Bug Fixes * fix: reject reusing bundle releases published for another lfx line by @erichare in https://github.com/langflow-ai/langflow/pull/15657 * fix(deps): dependency upgrades to 1.12.6 by @Adam-Aghili in https://github.com/langflow-ai/langflow/pull/15654 * fix: 1.13.0 security backports to 1.12.6 by @Adam-Aghili in https://github.com/langflow-ai/langflow/pull/15655 * fix(mcp): derive flow input schemas without running stored component code by @erichare in https://github.com/langflow-ai/langflow/pull/15660 * fix: accept dictionary input in Type Convert JSON and Message outputs (LE-3003) by @erichare in https://github.com/langflow-ai/langflow/pull/15680 * fix(lfx): handle numeric columns in Replace Value operation by @tarciorodrigues in https://github.com/langflow-ai/langflow/pull/15719 ### ✅ Tests * test: make WebhookTest.json fixture hermetic by @erichare in https://github.com/langflow-ai/langflow/pull/15724 **Full Changelog**: https://github.com/langflow-ai/langflow/compare/v1.12.5...v1.12.6
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