Canonical AI event

The 3.5.0 API now allows optional function call output call IDs.

The 3.5.0 release, dated August 27, 2026, includes an optional feature for function call output call IDs.

27 Aug 20261 verified claims1 sources1 observations

What happened

The official source reports this update: v3.5.0. 3.5.0 (2026-08-27) Features api: make function call output call IDs optional ( #3738 ) ( c74501d )

Why it matters

This official update documents a development concerning v3.5.0. Its practical significance depends on the scope and evidence stated by the source.

What to watch next

Read the official source update and verify its stated scope, evidence and timing before acting on it.

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Editorial presentation