In the news
BAML 0.19.0
BoundaryML · Published · 3 min read
In 30 seconds
- What happened
- BAML 0.19.0 adds structured agent journals, typed task outcomes, multi-project editing, float math helpers, and streaming optimizations.
- Why it matters
- Engineers using BAML for LLM function definitions need to update toolchains and regenerate bindings before upgrading.
- Watch out
- Multiple breaking changes require code migration: function specs use new syntax, standard library names shortened, and error types reorganized.
The patterns behind this
- Agentic Context Engineering (Evolving Playbook)
- Function Calling
- Context Editing & Tool-Result Clearing
Each one covers how the technique works, when it earns its cost, and where it breaks.
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