v2.9.0

2.9.0 (2026-11-12)

Features

• Add missing enum values to FinishReason and ReinforcementTuningThinkingLevel (73a1a09)
• Update discovery doc (9b3f296)

Bug Fixes

• Allow litellm<1.110.0 in evaluation extra, excluding 1.107.0 (10814f7)
• Migrate usage of mock to unittest.mock (dcf3026)
• Remove brittle client-side installation_scripts path validation in Agent Engine SDK (74d17cc)
• Support per-call timeout in Agent Engine A2A operations (d309536)

Documentation

• Update AdkApp.async_stream_query docstring for multimodal message dicts and add unit tests. (1b1f8fc)