Langflow

v1.9.4 Bugfix

This release fixes issues for SREs watching stability and regressions.

Published 8d AI Agents & Assistants

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✓ No known CVEs patched in this version

Topics

agents chatgpt generative-ai large-language-models multiagent react-flow

Summary

AI summary

Updates 🐛 Bug Fixes, ci, and Others across a mixed release.

Changes in this release

Type	Severity	Summary	CVE
Bugfix
Bugfix	Medium	Properly set nightly-base skipped flag. Properly set nightly-base skipped flag. Source: llm_adapter@2026-05-26 Confidence: high	—
Bugfix	Medium	Gate nightly release on successful tag creation. Gate nightly release on successful tag creation. Source: llm_adapter@2026-05-26 Confidence: high	—
Bugfix	Medium	Use local bundle wheels in nightly install tests. Use local bundle wheels in nightly install tests. Source: llm_adapter@2026-05-26 Confidence: high	—
Bugfix	Medium	Update model handling for tool calling in agents and IBM models. Update model handling for tool calling in agents and IBM models. Source: llm_adapter@2026-05-26 Confidence: high	—
Bugfix	Medium	Backport bundle rename step to nightly workflow on main branch. Backport bundle rename step to nightly workflow on main branch. Source: llm_adapter@2026-05-26 Confidence: high	—
Refactor	Low	Split monolithic Settings into per-domain group mixins. Split monolithic Settings into per-domain group mixins. Source: llm_adapter@2026-05-26 Confidence: high	—
Other
Other	Low	Stop publishing -nightly bundle variants; release bundles on demand. Stop publishing -nightly bundle variants; release bundles on demand. Source: llm_adapter@2026-05-26 Confidence: high	—
Other	Low	Build lfx wheel locally for smoke test. Build lfx wheel locally for smoke test. Source: llm_adapter@2026-05-26 Confidence: high	—
Other	Low	Re-pin bundle lfx dependencies to lfx-nightly during nightly build. Re-pin bundle lfx dependencies to lfx-nightly during nightly build. Source: llm_adapter@2026-05-26 Confidence: high	—
Other	Low	Bump timeout, harden langflow grep, and build/publish src/bundles/* wheels. Bump timeout, harden langflow grep, and build/publish src/bundles/* wheels. Source: llm_adapter@2026-05-26 Confidence: high	—

Full changelog

What's Changed

🐛 Bug Fixes

fix: Model handling for tool calling in agents and update IBM models by @mfortman11 in https://github.com/langflow-ai/langflow/pull/13191
fix(ci): backport bundle rename step to nightly workflow on main by @erichare in https://github.com/langflow-ai/langflow/pull/13195
fix(ci): gate nightly release on successful tag creation by @erichare in https://github.com/langflow-ai/langflow/pull/13198
fix(ci): use local bundle wheels in nightly install tests by @erichare in https://github.com/langflow-ai/langflow/pull/13256
fix: properly set nightly-base skipped by @Adam-Aghili in https://github.com/langflow-ai/langflow/pull/13338

📝 Documentation Updates

docs: rewrite AGENTS.md as hub with topical project philosophy docs by @ogabrielluiz in https://github.com/langflow-ai/langflow/pull/13038

🛠 Maintenance Tasks

refactor(settings): split monolithic Settings into per-domain group mixins by @ogabrielluiz in https://github.com/langflow-ai/langflow/pull/13141

Others

chore(ci): timeout bump + harden langflow grep + build/publish src/bundles/* wheels by @erichare in https://github.com/langflow-ai/langflow/pull/13199
ci: stop publishing -nightly bundle variants; release bundles on demand by @erichare in https://github.com/langflow-ai/langflow/pull/13206
ci(release_bundles): build lfx wheel locally for smoke test by @erichare in https://github.com/langflow-ai/langflow/pull/13207
ci(nightly): re-pin bundle lfx deps to lfx-nightly during nightly build by @erichare in https://github.com/langflow-ai/langflow/pull/13208

Full Changelog: https://github.com/langflow-ai/langflow/compare/1.9.3...1.9.4

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