What's Changed

• Update feature_request.md by @ymodak in #520
• Update bug_report.md by @ymodak in #519
• Implement the load memory tool for searching memory by @git-hulk in #497
• fix InvocationId being replaced on invocationContext duplication by @baptmont in #525
• feat: add human in the loop confirmation for mcp toolset by @baptmont in #523
• feature: add WithContext method to agent.InvocationContext to support context modification by @pawel-maciejczek in #526
• feat: add logging plugin by @dpasiukevich in #534
• feat: implement graceful shutdown in console launcher by @pawel-maciejczek in #533
• fix: Apply temp state deltas to local session object. by @baptmont in #537
• feat: add a function call modifier plugin. by @baptmont in #535
• Add support of the preload memory tool by @git-hulk in #527
• feat: add OpenTelemetry configuration and initialization - TracerProvider by @pawel-maciejczek in #524
• Move the function call modifier plugin into one package by @git-hulk in #546
• feat: switch the old tracing to single TracerProvider and add basic trace context propagation by @pawel-maciejczek in #529
• fix: set SkipSummarization in RequestConfirmation to stop agent loop by @code2gold in #544
• fix: remoteagent partial response handling leads to data duplication by @yarolegovich in #545
• fix: pass long_running_function_ids in the request_confirmation event by @dpasiukevich in #553
• chore: added tests to verify tool confirmation works with a2a by @yarolegovich in #560
• fix: clear aggregated text and thoughts when receiving a non-appending task artifact update by @sherryfox in #555
• feat: Implement OpenTelemetry semconv tracing by @pawel-maciejczek in #548
• cleanup: remove call_llm spans after adding semconv tracing by @pawel-maciejczek in #556
• fix: Fix flaky TestGenerateContentTracing by @pawel-maciejczek in #563
• fix: enable llm variant for gemini 2.5 and below by @dpasiukevich in #562
• chore: remove internal mutable session struct by @dpasiukevich in #572
• Introduce Retry and Reflect pluging by @caglar10ur in #564
• fix: format go.mod by direct and indirect dependencies by @zchee in #580
• feature: implement v2 trace debug endpoints based on semconv spans and logs by @pawel-maciejczek in #570
• feature: enhance telemetry project validation to fail if whitespace only is passed by opts or env var by @pawel-maciejczek in #584

New Contributors

• @ymodak made their first contribution in #520
• @pawel-maciejczek made their first contribution in #526
• @code2gold made their first contribution in #544
• @sherryfox made their first contribution in #555

Full Changelog: v0.4.0...v0.5.0

New major features

• Plugins: https://google.github.io/adk-docs/plugins/
• Tool Confirmation (human in the loop): https://google.github.io/adk-docs/tools-custom/confirmation/
• VertexAI Session Service: https://google.github.io/adk-docs/sessions/session/#vertexaisessionservice

note: adk docs will be updated with Go examples

What's Changed

• docs: update contributing.md by @dpasiukevich in #431
• fix: align and correct eventBelongsToBranch to match adk-python by @sjy3 in #437
• fix: update time truncation in database session service by @dpasiukevich in #448
• fix: Only last state change for multiple tool calls is being committed to state by @majiayu000 in #449
• fix: remote agent responses are not stored in streaming mode by @yarolegovich in #420
• fix: support CitationMetadata by @nahapetyan-serob in #463
• fix: parse events with errors in agenttool by @dpasiukevich in #468
• chore: correct LoadArtifactHandler Route Name by @IAmSurajBobade in #464
• artifact: don't allow file names with path separators by @rakyll in #472
• Implement graceful shutdown for web server via context cancellation by @imrenagi in #462
• fix: resolve nil pointer in tool.Context.SearchMemory in webui mode by @sjy3 in #476
• Implement OutputResponseProcessor to enable use of OutputSchema and tools by @caglar10ur in #441
• feat: include gen_ai.conversation.id in OTEL spans (#421) by @JEETDESAI25 in #428
• fix: return nil when server has been shutdown by @dpasiukevich in #487
• fix(database): cascade delete events when deleting session by @iuga in #483
• Make the type comparison case insensitive by @caglar10ur in #488
• feat: add FilterToolset helper by @dpasiukevich in #489
• fix: mark cancellation events as Final in Executor by @nahapetyan-serob in #494
• Update adk-web to 958c8d6278b45c59e413f52ace147c28c5767a4d by @caglar10ur in #491
• feat: add plugin package by @baptmont in #480
• Avoid maintaining the copyright year manually by @git-hulk in #495
• Add vertexAi session service by @baptmont in #235
• fix run mode config ineffective issue in a2a remote agent by @sjy3 in #485
• Add MCP session reconnection with Ping health check by @Nerja in #417
• update docs for llmagent by @indurireddy-TF in #500
• feat: enable plugin support in launcher config with tests by @MarcoCerino23 in #503
• fix: pass pluginConfig instead of only plugins by @dpasiukevich in #504
• fix: long-running operation handling as a2a input-required task by @yarolegovich in #499
• Fix MCP reconnection on EOF error by @Nerja in #505
• docs: upd docs for vertexai by @dpasiukevich in #515
• Removed plugin manager's after callback symmetry by @baptmont in #514
• feat: add human in the loop confirmation by @baptmont in #490
• Add custom part converters to ADK Executor. by @zbirkenbuel in #512
• feat: provide access to session events from executor callbacks by @yarolegovich in #521

New Contributors

• @sjy3 made their first contribution in #437
• @majiayu000 made their first contribution in #449
• @nahapetyan-serob made their first contribution in #463
• @IAmSurajBobade made their first contribution in #464
• @imrenagi made their first contribution in #462
• @JEETDESAI25 made their first contribution in #428
• @iuga made their first contribution in #483
• @Nerja made their first contribution in #417
• @indurireddy-TF made their first contribution in #500
• @MarcoCerino23 made their first contribution in #503
• @zbirkenbuel made their first contribution in #512

Full Changelog: v0.3.0...v0.4.0

What's Changed

• fix: data race in adka2a integration by @yarolegovich in #349
• Updating GenAI SDK version by @hanorik in #352
• Update issue templates by @dpasiukevich in #290
• Fix godoc linting error by adding missing godoc by @rakyll in #335
• Fix missing the model name in the tracer span by @git-hulk in #363
• fix(functiontool): recover from panics in user functions by @unbiasedcodex in #359
• chore(example): fix typo in README by @cryo-zd in #361
• fix: pass tool error to after_tool_callback by @dpasiukevich in #374
• Changing sqlite driver to CGO independent by @kdroste-google in #379
• Validate the input must be a struct when creating tools by @git-hulk in #331
• feat: remoteagent a2a request callbacks by @yarolegovich in #360
• Update ADK Web UI to latest(56bf9fd) by @caglar10ur in #387
• Gemini ADK version tag update to 0.2.0 by @kdroste-google in #392
• fix: concurrent session creation race by @cryo-zd in #368
• fix: remoteagent standard agent callbacks support by @yarolegovich in #397
• Update version.go by @baptmont in #398
• Fix mcp tool convert, null responseJsonSchema by @baptmont in #381
• Resolve TODO comment in telemetry.go by adding the finish reason and usage by @git-hulk in #404
• feat: set microsecond precision for gorm session service by @dpasiukevich in #414
• Add control over timeouts for SSE by @kdroste-google in #407
• fix: correct error message for closing blob writer by @cryo-zd in #416
• Add View Code Wiki by @feifeifeimoon in #382
• feat: adka2a conversion extendability and metadata handling by @yarolegovich in #410
• Update genai to v1.40.0 to support minimal and medium thinking levels by @kdroste-google in #424

New Contributors

• @hanorik made their first contribution in #352
• @unbiasedcodex made their first contribution in #359
• @cryo-zd made their first contribution in #361
• @caglar10ur made their first contribution in #387
• @feifeifeimoon made their first contribution in #382

Full Changelog: v0.2.0...v0.3.0

What's Changed

• Add tool docs by @ngeorgy in #224
• Add runner package docs. by @dpasiukevich in #227
• Fix branch prefix checking by @ngeorgy in #228
• Remove examples.Run method and update public docs by @dpasiukevich in #229
• Add artifact docs by @ngeorgy in #231
• cmd/adkgo: hide adkgo subpackages to internal by @hyangah in #232
• Add .gitignore for adk-go by @git-hulk in #230
• chore(example): context propagation and signal-based cancellation by @appleboy in #237
• Typo in package comment by @zebroc in #246
• Avoid the unnecessary type alias by @rakyll in #250
• Fix a few typos and one inconsistent naming issue by @git-hulk in #258
• Enforce strict tool usage for weather_time_agent by @vinodnextcoder in #248
• Remove the cmd/launcher/adk package by @rakyll in #252
• Improve readability in examples by @rakyll in #253
• Fix: Unsafe Template Package May Allow Malicious Code Injection in internal/llminternal/agent_transfer.go by @orbisai0security in #249
• Rename remoteagent.New to remoteagent.NewA2A by @rakyll in #266
• Add automigrate function to database package. by @baptmont in #241
• Fix #257: Return http.Handler instead of SetupRouter in server/restapi/web by @Arjunmehta312 in #259
• Add command-line params in web launcher for server timeouts by @kdroste-google in #267
• Rename gcs.NewGCSArtifactService to gcsartifact.NewService by @rakyll in #271
• Remove Vertex AI session service by @rakyll in #273
• Allow function tool handlers to return errors by @rakyll in #270
• Restructure the REST API packages by @rakyll in #254
• Allow using a custom MCP client by @rakyll in #276
• fix: prevent panic when LLMAgent has no Model configured by @apzuk3 in #280
• all: run modernize happy by @zchee in #281
• Add CONTRIBUTING.md by @dpasiukevich in #286
• Added sample for setting user_id in a2a by @kdroste-google in #288
• Refactor: extract repeated values into named constants by @D-sense in #293
• Added minor linter fixes. by @dpasiukevich in #311
• all: run golangci-lint fmt happy by @zchee in #308
• Bump golang.org/x/crypto from 0.43.0 to 0.45.0 in the go_modules group across 1 directory by @dependabot[bot] in #323
• Skip sending empty parts to Gemini by @dpasiukevich in #328
• feat: pass event actions through a2a by @yarolegovich in #304

New Contributors

• @git-hulk made their first contribution in #230
• @appleboy made their first contribution in #237
• @zebroc made their first contribution in #246
• @vinodnextcoder made their first contribution in #248
• @orbisai0security made their first contribution in #249
• @Arjunmehta312 made their first contribution in #259
• @apzuk3 made their first contribution in #280
• @zchee made their first contribution in #281
• @D-sense made their first contribution in #293

Full Changelog: v0.1.0...v0.2.0