langchain-core 1.7 deltas, Browser Use 0.13.14 tools
Updated 1 min read
Summary
Agent Radar 2026-10-29: langchain-core 1.7 streams tool-call args as deltas and 1.7.1 fixes tracing; Browser Use 0.13.14 brings OpenAI tools to PyPI.
Agent Radar tracked two launches as of 2026-10-29, covering the window 2026-10-22 to 2026-10-29. The headline item is langchain-core 1.7, because it changes what raw stream consumers receive while a tool call is being generated.
At a glance
| Launch | Tool | Released | What changed |
|---|---|---|---|
| langchain-core 1.7 streams tool-call args as deltas | LangChain | 2026-10-22 and 2026-10-28 | tool-call-delta events replace arg snapshots; 1.7.1 keeps gateway tracing metadata and escapes Mermaid labels |
| Browser Use 0.13.14 brings OpenAI browser tools to PyPI | Browser Use | 2026-10-26 | OpenAI browser tools on PyPI, shared Bash helper, scaled-display click fixes, Cloud SDK V4 imports |
What changed
- LangChain: langchain-core 1.7.0, published October 22, 2026, streams tool-call arguments as
tool-call-deltaslices instead ofblock-deltasnapshots;.tool_calls.get()and.outputare unchanged. 1.7.1 followed on October 28 with two fixes. More on the LangChain hub. - Browser Use: 0.13.14, published October 26, 2026, is the first PyPI build with the OpenAI browser-tool driver, now with a shared Bash helper, plus fixes for form state, browser recovery and clicks on scaled displays. See the new Browser Use hub.
Questions
Which item needs action first?
langchain-core 1.7, if your code reads tool-call arguments from raw stream events mid-stream. Switch to tool-call-delta or pin langchain-core<1.7.
Which item is safe to take without code changes? Browser Use 0.13.14: its notes list no breaking change for the Python agent.
New guide today: LangChain alternatives. Related reading: Pydantic AI vs LangChain.
In this issue
Rank 1 langchain-core 1.7 streams tool-call args as deltas
LangChainlangchain-core 1.7.0 streams tool-call args as tool-call-delta events; 1.7.1 (October 28, 2026) fixes gateway tracing metadata and Mermaid labels.
Category: Frameworks
Pricing: Open source
Rank 2 Browser Use 0.13.14 brings OpenAI browser tools to PyPI
Browser UseBrowser Use 0.13.14 (October 26, 2026) ships OpenAI browser tools with a Bash helper, better form state and recovery, and Cloud SDK V4 imports.
Category: Browser agents
Pricing: Open source
