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Canonical AI event

Software Version 2.31.0 Adds Gemini-4-Argon Model Option

The 2.31.0 release includes a new model type and fixes for function parsing and metadata merging.

15 Oct 20261 verified claims1 sources1 observations
What happened

The official source reports this update: v2.31.0. 2.31.0 (2026-10-14) Features interactions: Add gemini-4-argon to Model enum ( 8554b07 ) Bug Fixes Clear continuation state and preserve prompt feedback when continuation hop returns no candidates ( a0d809c ) Fix the function declaration parser for union types. Fixes #3060 ( be32e9e ) Fix the grounding metadata merging for automatic continuation in generate content and generate content stream ( f1499bb ) Make continuation streams retry dropped hops, stop on prompt_feedback, and keep real errors in generate_content ( 339a929 ) Match the mTLS endpoint to each transport's SSL context, including plain aiohttp ( f8a4693 )

Why it matters

This official update documents a development concerning v2.31.0. Its practical significance depends on the scope and evidence stated by the source.

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Connected knowledge

Entities affected by this event

Python Genaisubject
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Evidence trail

Sources behind the event

Google Gen AI Python SDK releasesv2.31.0
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