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)

2.8.0 (2026-11-10)

Features

• Add service_account parameter to Model Garden deploy methods. (8779d73)
• GenAI SDK client(evals) - Add StepBasedLLMMetric for multi-step LLM-judge metrics over agent traces. (954c90d)
• GenAI SDK client(evals) - Support StepBasedLLMMetric in create_evaluation_metric. (84df3a7)
• Support git_source in client.runtimes for deploying from public Git repositories (affc088)
• Update discovery doc (720b112)

Bug Fixes

• Cap sentencepiece below 0.2.3 in the tokenization extras (bb5ff02)
• Fail open on any error resolving the project ID in the ADK framework. (2ec72e8)
• GenAI Client(evals) - Handle agent traces that end without a text event in run_inference (d62419a)
• Warn when the pipeline output bucket is not owned by the project, and add aiplatform.init(enforce_bucket_ownership=True) to raise an error instead (27ee0dc)

2.7.0 (2026-10-28)

Features

• Add support for Python 3.15 (9b9f2b3)

Bug Fixes

• Build the VPC-SC psc_endpoint URL as http://{psc_endpoint}:{port} in Sandboxes.send_command and ws://{psc_endpoint}:{port} in Sandboxes.generate_browser_ws_headers, instead of https://{psc_endpoint} on 443. The sandbox router pod serves plain HTTP on the caller-supplied port (default 8080) and does not terminate TLS on 443, so the prior URLs hung on ConnectTimeout. Non-VPC-SC branches are unaffected. (dd39926)
• GenAI Evaluation: Lazily import scikit-learn in preview autorater_utils so importing vertexai.preview.evaluation doesn't require it (d6f690e)
• Model Garden deploy_publisher_model now honors dedicated_endpoint_disabled and spot without a machine type (5b3dba9)
• Model Garden list_deployable_models, list_models and list_publisher_model_deploy_options now read the catalog from us-central1 for clients in any location (1ba7a41)
• Preserve caller session_id as agent_engine:upstream_session_id on fallback session creation in AdkApp. (f1944ac)
• Resolve agentplatform metric objects in vertexai evals (46f4e55)
• Stop deserializing the staged agent from Cloud Storage during Agent Engine deployment (d02310f)

2.6.0 (2026-10-20)

⚠ BREAKING CHANGES

• An existing value DEPRECATED is removed from enum State

Features

• Add ARCHIVED state to ReasoningEngineRuntimeRevision (faed3f4)
• Add client.memory_banks.update method. (0ac315e)
• Add context to Memory, MemoryRevision, and IntermediateExtractedMemory in Vertex AI v1beta1 (faed3f4)
• Add extra_context to EvaluationItemRequest (c0a8de2)
• Export ADK agent engine template logs to the Telemetry API (448abba)
• Onboard Vertex Model Garden to GenAI Python SDK: Add deploy_custom_model (46ae3d0)
• Support batch predict in Model Garden (6b2870f)
• Update discovery doc (b60bddc)

Bug Fixes

• An existing value DEPRECATED is removed from enum State (faed3f4)
• GenAI Client(evals) - Default missing rubric verdicts to False (93c52a6)
• GenAI Client(evals) - Honor per-row tool_config in Gemini inference (48ce2ae)
• GenAI Client(evals) - Keep eval_case_index aligned with dataset rows (19b0c40)
• GenAI Client(evals) - Log serialization errors in show() instead of raising AttributeError (4b1ace9)
• GenAI Client(evals) - Parse JSON-string and OpenAI-style conversation_history (1d93955)
• GenAI Client(evals) - Serialize DataFrame-backed evaluation datasets to JSON (9e5c721)

Documentation

• A comment for field create_time in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)
• A comment for field description in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)
• A comment for field display_name in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)
• A comment for field expire_time in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)
• A comment for field fact in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)
• A comment for field name in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)
• A comment for field scope in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)
• A comment for field ttl in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)
• A comment for field update_time in message .google.cloud.aiplatform.v1beta1.Memory is changed (faed3f4)

Miscellaneous Chores

• Release 2.6.0 (ed98faa)

2.5.0 (2026-10-13)

Features

• agentplatform: Add agent_card to AgentRuntimeConfig for runtimes.create and update (527b6dc)

Bug Fixes

• agentplatform: Allow opentelemetry-instrumentation-google-genai 1.x in agent_engines (7f08bd6)
• GenAI Client(evals) - Back off only on retryable errors in inference and agent-run retries (f6bf219)
• GenAI Client(evals) - Fix run_inference for local ADK agents and remote runtime N+1 (738e2b1)
• GenAI Client(evals) - Mirror the inference retry fix to agentplatform/private and vertexai (efa3980)
• GenAI Client(evals) - Pass client credentials and http_options to per-thread runtime clients (58c34ea)
• GenAI Client(evals) - Save Gemini agent run_inference results to dest (be0eb9a)
• GenAI Client(evals) - Send list and dict context to the evaluation service (2c2d69e)
• GenAI Client(evals) - Show intermediate_events as a conversation trace in show() (4d4ac8a)
• GenAI Client(evals) - Show N/A for missing summary scores in the comparison report (be4ea51)
• GenAI Client(evals) - Treat NaN and array cells as missing in eval DataFrames (b28737e)
• Raise google.genai.errors.APIError when Agent Engine create or update LROs fail (e631a16)

Documentation

• Update gemini model in docstrings for RAG Engine (16c3fb6)
• Update generated SDK docstring examples to use gemini-flash-latest (8010cbd)

2.4.0 (2026-10-06)

Features

• Add per-step judges and cross-region routing to evals (5fa1455)
• GenAI Client(evals) - add EvaluationDataset.load_from_adk_eval_set (4c045e1)
• Surface the LRO name in Agent Engine create and update requests (b1378bb)
• Update discovery doc (39693a9)

Bug Fixes

• Replay session_events into a scratch session and delete it afterwards (3647753)

2.3.0 (2026-09-25)

Features

• Add serving profiles support to agentplatform genai sdk (6da2b9b)
• Include labels for LiveClientSetup (6b29d01)

Bug Fixes

• Keep AdkApp subclass, plugins and credential_service_builder in clone() (cfb44c4)
• Make async_stream_query non-blocking by using the async execution client (d62114d)

2.2.0 (2026-09-22)

Features

• Update discovery doc (6ad6fe8)

Bug Fixes

• Allow unknown union variants when validating gaos responses in evals (a9c4e6e)
• Resolve vertexai.types against agentplatform.types (5af2f8e)
• Resolve vertexai.types against agentplatform.types (36a47bd)
• Resolve vertexai.types against agentplatform.types (75ecb3b)

2.1.3 (2026-09-15)

Features

• Add psc_endpoint parameter to Sandboxes.send_command and Sandboxes.generate_browser_ws_headers so VPC-SC sandboxes with ingressControlConfig.enablePrivateServiceConnect=true (which populate only connection_info.service_attachment, never load_balancer_hostname / load_balancer_ip) can route data-plane traffic through a customer-provisioned PSC endpoint. Existing non-VPC-SC callers are unaffected; the parameter defaults to None and the load-balancer branches remain the primary path. (39971ae)
• Add build configuration support to Vertex AI Reasoning Engine (bea1abd)
• Add enable_zero_data_retention to Tool.ParallelAiSearch (bea1abd)
• Add enable_zero_data_retention to Tool.ParallelAiSearch (bea1abd)

Bug Fixes

• Fail open on any error resolving the project ID in the ADK templates. (30bf665)
• Fix Sandboxes.send_command failing to reach the sandbox data plane. (2b28caf)
• Import pandas lazily in the Gen AI SDK _gcs_utils module. (7c94277), refs #5928 #7129

Miscellaneous Chores

• Release 2.1.3 (2c7a22d)

2.1.1 (2026-09-14)

Bug Fixes

• Fix Sandboxes.send_command failing to reach the sandbox data plane. (2b28caf)
• Import pandas lazily in the Gen AI SDK _gcs_utils module. (7c94277), refs #5928 #7129