v1.21.0

1.21.0 (2025-09-25)

Features

• Add FunctionResponsePart & ToolComputerUse.excludedPredefinedFunctions (61620f6)
• Support Imagen 4 Ingredients on Vertex (56cccfc)

Bug Fixes

• #963 allow leading whitespace before data chunks (24f4153)
• Expose JOB_STATE_RUNNING and JOB_STATE_EXPIRED for Gemini Batches states (b513c69)
• initialization of pre_tuned_model_checkpoint_id from tuning config. (2e10e7f)