v0.3.0

⚠️ Breaking Changes

• ag-ui: the peer range on @ag-ui/client and @ag-ui/core moves from ^0.0.59 to ^1.0.1; the adapter imports validators from @ag-ui/core/schemas, which the 0.0.x line does not ship

✨ Highlights

• ag-ui: upgrade to AG-UI 1.0.1; the adapter now declares ^1.0.1 peers on @ag-ui/client and @ag-ui/core, imports validators from @ag-ui/core/schemas, declares protocolVersion on every run, and runs the private request path through the 1.0 compatibility boundary
• chat: Agent.usage, ToolCall.parts, and an authoritativeIds input to selectPendingClientToolCalls
• ag-ui: cancelled run outcomes settle as aborted; content-part tool results map to chat content blocks
• chat: chatActivityTemplate, a per-message activity slot on <chat> that replaces the reasoning pill and tool-call region of each assistant message (#1253)
• chat: the zod peer range widens to ^3.25.0 || ^4.0.0; the library imports only the zod/v4 entry point, which both lines ship

🚀 Features

• load persisted LangGraph history in shared sessions (cd56b9647)
• expose LangGraph state through native snapshots (78df2f1de)
• add public React persistence preview (#1221)
• dogfood native React subgraphs on the public guide (#1225)
• dogfood React Chat Messages in the native example (#1250)
• dogfood React Chat Input in the native example (#1258)
• dogfood React Chat Interrupts in the native example (#1259)
• dogfood React Chat Tool Calls in the native example (#1260)
• dogfood React Chat Subagents in the native example (#1261)
• dogfood React Chat Threads in the native example (#1263)
• deployed demo metadata and SEO polish (#1262)
• ag-ui: own private HTTP request lifetimes (#1162)
• ag-ui: distinguish run outcomes from HTTP completion (#1163)
• ag-ui: preserve owned protocol transcripts at request egress (#1164)
• ag-ui: preserve streamed messages through snapshot reconciliation (#1166)
• ag-ui: own state updates and preserve portable patch data (#1167)
• ag-ui: preserve tool, activity and encrypted observations (#1168)
• ag-ui: retain native child lifecycle evidence (#1169)
• ag-ui: compose private protocol session ownership (#1170)
• ag-ui: admit per-turn application state atomically (#1174)
• ag-ui: correlate native resume and preserve dispatch uncertainty (#1176)
• ag-ui: declare protocol version 1.0 on every outgoing run (b36b7f26b)
• ag-ui: run the private request path through the 1.0 compatibility boundary (f68f9f52e)
• ag-ui: treat a cancelled run outcome as aborted (034f94945)
• ag-ui: expose the raw protocol event stream as rawEvents$ (#1273, #1252)
• bindings: observe native session snapshots directly (#1171)
• chat: add native text transcript components (#1173)
• chat: add literal tool observation components (#1178)
• chat: add a per-message activity slot to (#1275, #1253)
• chat: let liveloveapp.com embed the hero demo replay-only (#1277)
• chat,ag-ui: expose per-run token usage on the agent contract (0f13ad187)
• chat,ag-ui: carry content-part tool results through the neutral contract (baf6bdc70)
• chat,ag-ui: honor the run's declared pending tool-call ids (142a2447b)
• cockpit: dogfood native React AG-UI streaming (#1229)
• cockpit: dogfood native React AG-UI approvals (#1230)
• cockpit: dogfood native React AG-UI weather views (#1231)
• cockpit: dogfood native React AG-UI dashboards (#1232)
• cockpit: dogfood native React AG-UI trip specialists (#1234)
• cockpit: dogfood native React render spec playback (#1236)
• content: own incremental Markdown documents (#1182)
• content: add native Markdown presentation (#1183)
• content: own reasoning Markdown in message rows (1008c5efe)
• content: own incremental JSON snapshots (#1205)
• deployments: fail the ag-ui requirements union on a protocol cap conflict (40b4b91f4)
• deployments: host the MAF runtime as its own ag-ui-maf service (0d97ce0f1)
• deployments: generate a separate MAF deployment from the ag-ui config generator (3419a3660)
• examples: add native React conversation app (#1184)
• examples: add native Angular conversation app (#1185)
• examples: add native approval controls (#1186)
• examples: add terminal trip summaries (#1187)
• examples: refresh the selected conversation title (3af47aff9)
• examples: declare protocol version 1.0 on RUN_STARTED from the LangGraph subclasses (48e940b38)
• langgraph: observe readonly interrupt batches (e4862cfaa)
• langgraph: resume observed interrupts explicitly (bcf0597c7)
• langgraph: reconnect owned runs without replay (5788ce255)
• langgraph: submit owned application state once (e577149e9)
• langgraph: observe isolated subgraph streams (c600429e1)
• langgraph: observe compact checkpoint history (2088de1d6)
• langgraph: own per-command run options (c49f78717)
• langgraph: retain completed checkpoint fork authority (#1156)
• native: present readonly React background observations (#1211)
• react: add Chat, ChatInput and MessageList (11ae9b11f)
• react: dogfood typed MessageList in native example (38de28e63)
• react: dogfood owned reasoning in native chat (5e8971e04)
• react: dogfood borrowed approval card in native example (271c46c00)
• react: dogfood message actions in native example (69327681d)
• react: render readonly trees in native trip recaps (#1206)
• react: show readonly citation sources in native chat (#1207)
• react: dogfood client tools in the public cockpit (#1220)
• react: dogfood durable execution in public cockpit (#1222)
• react: dogfood time travel in public cockpit (#1226)
• react: dogfood deployment runtime in public cockpit (#1228)
• react: dogfood native repeat loops (#1243)
• react: dogfood native Registry rendering (#1244)
• react: dogfood native Element Rendering (#1245)
• react: support pure computed render functions (#1246)
• react: integrate native computed functions preview (#1248)
• runtime: bind durable tools to invocation ownership (#1152)
• runtime: preserve owned citation metadata (#1158)
• runtime: preserve reasoning and supported answer text (#1159)
• website: fit the navbar and its dropdowns to the page container on wide screens (#1264)

🩹 Fixes

• make runtime review cleanup tolerate exiting process groups (1a11e0611)
• preserve durable completion identities from JSON messages (#1223)
• ag-ui: scope reasoning timing to its delivery run (#1160)
• ag-ui: isolate child reasoning with real HTTP lifecycle coverage (#1161)
• ag-ui: enforce owned patch paths and safe data writes (#1165)
• ag-ui: retain native interruption evidence until terminal (#1175)
• ag-ui: import protocol validators from @ag-ui/core/schemas (8433305d5)
• ag-ui: normalize resume entries explicitly and compile the runtime against 1.0 types (b6a5d2921)
• ag-ui: align the private runtime with the 1.0 client's enforcement and null semantics (ac804e00c)
• ag-ui: land a producer-cancelled resume in a recoverable interrupt phase (6186dda4a)
• ag-ui: record pending tool-call ids only when the run finalizes (873e52837)
• ag-ui: honor empty pending lists, record usage only on finalize, require the 1.0 store fields (333524379)
• ag-ui: declare the protocol version through @ag-ui/client on the private path (c6f4072b1)
• ag-ui: settle a cancelled outcome as aborted on the private runtime (64aa49982)
• chat: reduced motion, disclosure semantics and contrast fixes (#1274, #1254, #1255, #1256)
• ci: rebuild child policy for affected website previews (#1224)
• cockpit: explain browser render execution (#1249)
• deploy: move the Vercel function runtime to nodejs22.x (90bb6ea4f)
• deploy: use supported Node 22 function runtimes (13ff89908)
• deployments: pin @ag-ui/core 1.0.1 as a runtime dependency of ag-ui-mastra (47d8d1897)
• deployments: title each generated server after its deployment (4e0886c05)
• deployments: commit ag-ui-maf's generated deps and fail the drift gate on untracked files (edec1a9f9)
• deployments: gate on an ignored or untracked deps/ and stop staging pytest caches (656edd596)
• examples: preserve empty backups and require exact approval (#1188)
• examples: keep generated titles out of conversation streams (cadcf27eb)
• examples: preserve physical run identity through proxy (#1227)
• langgraph: honor cancellation for state writes (#1138)
• langgraph: preserve outstanding tool claim ownership (#1143)
• langgraph: serialize terminal tool persistence (#1146)
• langgraph: preserve sparse tool array changes (#1147)
• langgraph: retain admitted tool invocation identity (#1150)
• langgraph: reconcile streamed response identities (d73809417)
• langgraph: accept checkpoints without saved run metadata (#1272)
• libs: align the generated version constants with the manifests (#1111)
• lifecycle: project observations in the tick behind the existing switch (#1108)
• lifecycle: reduce idle Neon wakeups with fifteen-minute fallback (#1115)
• middleware: preserve execution ownership during receipt ingestion (#1145)
• middleware: preserve execution store string identities (#1149)
• react: follow late message height growth while pinned (#1208)
• react: follow transcript viewport resizing while pinned (#1209)
• react: correct Subagents example page title (#1265)
• react-parity: expect protocolVersion in the native review envelope (2b17e9e39)
• react-parity: expect protocolVersion in the native Mastra proof envelope (b2b527f16)
• website: await native JSON Render readiness (#1233)
• website: preserve mode and frontend history during rapid navigation (#1238)
• website: work around React hydration replay bug on docs pages in dev (#1266, #37584)