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question: how to use vector databases as memory?

services[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc

Status: Open.

Feature

#4401 In google/adk-python;

· eyang-2 opened on Feb 6, 2026

Cannot use gemini-3-pro-preview with Vertex AI Reasoning Engine in us-central1 (404 NOT_FOUND)

agent engine[Component] This issue is related to Vertex AI Agent Engine[Component] This issue is related to Vertex AI Agent Engine

Status: Open.

#4397 In google/adk-python;

· enesdemirag opened on Feb 6, 2026

Plugin framework: on_state_change_callback is never invoked

core[Component] This issue is related to the core interface and implementation[Component] This issue is related to the core interface and implementation

Status: Open.

Feature

#4393 In google/adk-python;

· mportdata opened on Feb 6, 2026

400 Error - when using agent as a tool with Root Agent

core[Component] This issue is related to the core interface and implementation[Component] This issue is related to the core interface and implementation

Status: Open.

Bug

#4391 In google/adk-python;

· veevortexiq opened on Feb 6, 2026

RFC: Alembic Adoption for Database Migrations in ADK-Python

services[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc

Status: Open.

Feature

#4387 In google/adk-python;

· achilleasatha opened on Feb 5, 2026

ADK uses sync client as vertex ai client in VertexAIMemoryBankService - highly degrading performance

services[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc

Status: Open.

Bug

#4386 In google/adk-python;

· pgaur-chwy opened on Feb 5, 2026

Response streaming broken after migration to Gemini Interactions API

live[Component] This issue is related to live, voice and video chat[Component] This issue is related to live, voice and video chat

Status: Open.

Bug

#4384 In google/adk-python;

· remygendron opened on Feb 5, 2026

AISOP (AI Standard Operating Protocol): The Only Soul of Agency https://github.com/aisop-protocol/aisop

core[Component] This issue is related to the core interface and implementation[Component] This issue is related to the core interface and implementation

Status: Open.

Feature

#4382 In google/adk-python;

· NewSoulNewPeople opened on Feb 5, 2026

Using Gemini Integrations API breaks previous conversations/sessions compatibility

services[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc[Component] This issue is related to runtime services, e.g. sessions, memory, artifacts, etc

Status: Open.

Bug

#4381 In google/adk-python;

· remygendron opened on Feb 5, 2026

Can't track tokens usage when using vertex AI related features in AgentTools

tracing[Component] This issue is related to OpenTelemetry tracing[Component] This issue is related to OpenTelemetry tracing

Status: Open.

Feature

#4377 In google/adk-python;

· Jihed-Benmohamed opened on Feb 5, 2026

[Bug]: ADK fails to load tools when using Toolbox integration

mcp[Component] Issues about MCP support[Component] Issues about MCP support

tools[Component] This issue is related to tools[Component] This issue is related to tools

Status: Open.

Bug

#4376 In google/adk-python;

· mehdicopter opened on Feb 5, 2026

Bug: Two LocalEvalSetsManager tests failing due to incorrect mock targets

eval[Component] This issue is related to evaluation[Component] This issue is related to evaluation

Status: Open.

Bug

#4374 In google/adk-python;

· G26karthik opened on Feb 5, 2026