Release v0.3.0

What's Changed

• tool/agent: fix test compatibility with tool input event synchronization by @bytethm in #421
• examples: remove hardcoded API key from graph_debugserver by @bytethm in #422
• {agent, telemetry}: add output for invoke_agent span by @liuzengh in #419
• {flow,agent_tool,processor/functioncall}: improve the notification wating time during multiple rounds of flow sessions to prevent message non persistence in multi-agent mode by @nomand-zc in #424
• internal/flow: fix duplicate tool messages emitted after parallel tool execution by @Flash-LHR in #420
• graph: Fix event leakage between concurrent nodes by @nomand-zc in #425
• docs: update graph docs on subagents by @WineChord in #428
• knowledge: add url source alias option by @hyprh in #427
• graph: support multiturn chat for graph by @WineChord in #423
• {session/summary, examples}: introduce session summary and add summarization example by @Rememorio in #256
• {server/agui, examples, docs}: support agui by @Flash-LHR in #379
• {invocation,event,runner,session/redis}: improve channel buffer size for runner and add queue monitoring logs by @nomand-zc in #426
• {processor/content,session,runner}: Fix read/write race condition in session events by @nomand-zc in #429
• {invocation,processor/functioncall,transfer_tool}: Fix transfer message loading failure and Remove the unused endInvocation field by @nomand-zc in #430
• docs: update on session service usage on debugserver by @WineChord in #431
• examples: enhance math specialist tool with input schema and update README by @Rememorio in #432
• examples/llmagent: refactor llmagent example for clarity by @Rememorio in #433
• events: use the correct import of logger by @Rememorio in #434
• {docs, examples}: add agui dependency explanation by @Flash-LHR in #436
• lsc: refactor to solve linter by @Rememorio in #435
• runner: adjust runner's channel buffer size to match agent's by @nomand-zc in #438
• processor/content: refactor get history event message by @nomand-zc in #437
• lsc: replace interface{} with any and gofmt files by @Rememorio in #439
• lsc: rename files for clarity by @Rememorio in #442
• lsc: replace isToolEvent with IsFinalResponse method by @liuzengh in #443
• planner: update comment of planner by @hyprh in #448
• processor/output: enhance JSON extraction in output processor logic by @nomand-zc in #440
• knowledge: support user-defined document parsing by @nomand-zc in #444
• {examples, model}: support streaming reasoning content and add thinking demo by @Rememorio in #445
• docs: format list for artifact by @Flash-LHR in #451
• docs: restructure navigation and enable Mermaid diagrams by @Flash-LHR in #454
• lsc: replace event.Choices with event.Response.Choices by @Rememorio in #452
• tool: default agent tool's skip summarization to false by @WineChord in #450
• docs: update event stream handling section in agent docs by @bytethm in #449
• docs: add doc about thinking enabled without planner by @Rememorio in #456
• internal/flow/processor: optimize the logic for extracting JSON objects by @Rememorio in #459
• knowledge/embedder: extract response func to eliminate code duplication by @liuzengh in #461
• {docs,examples}: add usage instructions for RequestID by @nomand-zc in #458
• invocation: improve outlier handling for invocation notice by @nomand-zc in #455
• telemetry: align with OpenTelemetry GenAI semantic conventions by @liuzengh in #460
• {server/agui, docs}: refactor AG-UI server to use service factories and export runner package by @Flash-LHR in #457
• {server/agui, examples}: use official agui go sdk dependency by @Flash-LHR in #463
• examples: update copyright by @Flash-LHR in #468
• tool: update ToolSet interface to return Tool type by @liuzengh in #469
• tool: update Tools method to return Tool type instead of CallableTool by @liuzengh in #471
• graph: pass pregel error to event.Error by @WineChord in #470
• graph: add subgraph node and example by @WineChord in #462
• tool/mcp: add session-level reconnection mechanism by @bytethm in #378
• knowledge: fix maxResult parameter not working by @nomand-zc in #472
• docs: improve graph docs by @WineChord in #453
• {docs, examples}: add custom translator example for agui by @Flash-LHR in #466
• graph: support node-level retry for graph by @WineChord in #465

Full Changelog: v0.2.2...v0.3.0