google/adk-java v0.6.0

on GitHub

0.6.0 (2026-02-19)

Features

• Add Compact processor to SingleFlow (ee459b3)
• Add Compaction RequestProcessor for event compaction in llm flow (af1fafe)
• Add ContextCacheConfig to InvocationContext (968a9a8)
• Add event compaction config to InvocationContext (8f7d7ea)
• Add event compaction framework in Java ADK (dd68c85)
• add eventId in CallbackContext and ToolContext (ac05fde)
• add ExampleTool to ComponentRegistry (2e1b09f)
• add response converters to support multiple A2A client events (4e8de90)
• Add token usage threshold to TailRetentionEventCompactor (9901307)
• Add tokenThreshold and eventRetentionSize to EventsCompactionConfig (588b00b)
• Add VertexAiSearchTool and AgentTools for search (b48b194)
• Adding a .close() method to Runner, Agent and Plugins (495bf95)
• Adding a new ArtifactService.saveAndReloadArtifact() method (59e87d3)
• adding a new temporary store of context for callbacks (ed736cd)
• Adding autoCreateSession in Runner (6dd51cc)
• Adding GlobalInstructionPlugin (72e20b6)
• Adding OnModelErrorCallback (dfd2944)
• adding resume / event management primitives (2de03a8)
• Adding TODO files for reaching idiomatic java (4ac1dd2)
• Adding validation to BaseAgent (5dfc000)
• Adding validation to BaseAgent and RunConfig (503caa6)
• Adding validation to InvocationContext 'session_service', 'invocation_id', (0502c21)
• Allow EventsCompactionConfig to have a null summarizer initially (229654e)
• enable LoopAgent configuration (d1a1cea)
• EventAction.stateDelta() now has a remove by key variant (32a6b62)
• Extend google_search support to Gemini 3 in Java ADK (ddb00ef)
• Fix a handful of small changes related to headers, logging and javadoc (0b63ca3)
• Forward state delta to parent session (00d6d30)
• HITL - remove the events between the confirmed FC & its response (3670555)
• HITL - Revert the "Boolean confirmation" changes, we'll fix it differently (f65e58b)
• HITL: Declining a proposal now correctly intercepts the run (9611f89)
• HITL: Let ADK resume after HITL approval is present (9611f89)
• Improving LoggingPlugin (acfaa04)
• Integrate event compaction in Java ADK runner (54c826c)
• Introduce TailRetentionEventCompactor to compact and retain the tail of the event stream (efe58d6)
• Introduce the App class for defining agentic applications (d7c5c6f)
• introduces context caching configuration for apps, ported from Python ADK (12defee)
• new ContextFilterPlugin (f8e9bc3)
• Refactor EventsCompactionConfig to require a summarizer (864d606)
• refactor remote A2A agent to use A2A SDK client (7792233)
• Refine bug and feature request issue templates (3e74c9a)
• register GoogleMapsTool in ComponentRegistry (464f0b2)
• Reorder compaction events in chronological order (66e2296)
• Setting up data structures for pause/resume/rewind (c6c52c4)
• Skip post-invocation compaction if parameters not set (76f86c5)
• Support function calls in LLM event summarizer (55144ac)
• support stdio_connection_params in McpToolset config (cc1588a)
• Token count estimation fallback for tail retention compaction (3338565)
• Update event compaction logic to include events after compaction end times (ea12505)
• Updating Baseline Code executors (a3f1763)
• updating Telemetry (5ba63f4)
• Updating the Tracing implementation and updating BaseAgent.runLive (8acb1ea)
• use Credentials' request metadata to populate headers (e01df11)

Bug Fixes

• Add name and description to configagent pom.xml (4948bfc)
• Align InMemorySessionService listSessions with Python implementation (9434949)
• Always use a mutable HashMap for default function arguments (c6c9557)
• emit multiple LlmResponses in GeminiLlmConnection (7bf55f1)
• Events for HITL are now emitted correctly (9611f89)
• fix linter error (f49260e)
• Fixing a problem with serializing sessions that broke integration with Vertex AI Session Service (8190ed3)
• Fixing a regression in InMemorySessionService (d11bedf)
• Fixing Vertex session storage (5607f64)
• HITL endless loop when asking for approvals (9611f89)
• include usage_metadata events in live postprocessing (8137d66)
• javadocs in ResponseConverter (be35b22)
• Make FunctionResponses respect the order of FunctionCalls (a99c75b)
• Making stepsCompleted thread-safe (d432c64)
• Merging of events in rearrangeEventsForAsyncFunctionResponsesInHistory (67c29e3)
• Mutate EventActions in-place in AgentTool (ded5a4e)
• pass mutable function args map to beforeToolCallback (e989ae1)
• populate finishReason in LlmResponse (dace210)
• Propagate trace context across async boundaries (279c977)
• recursively extract input/output schema for AgentTool (7019d39)
• Reduce the logging level (dd601ca)
• Remove checking ToolConfirmation from Functions to align with Python SDK (0724330)
• remove client-side function call IDs from LlmRequest (99b5fc2)
• Remove obsolete @param tags from SessionController Javadoc (a77971a)
• Replace @apiNote with <p> in Javadoc comments. (ac16d53)
• restore invocationContext() method (c9e2a5b)
• revert: Merging of events in rearrangeEventsForAsyncFunctionResponsesInHistory (101adce)
• update converters package classes (b66e4a5)
• update EmbeddingModelDiscoveryTest package statement (adeb9dc)
• Updated BasePlugin JavaDoc for name parameter (2e59550)

Documentation

• Update comment in Runner (fe00ef8)