# Changelog All notable changes to Curb. Curb uses semantic versioning. Version numbers can skip: only released versions are listed. Some 1.x releases made breaking changes without a major version. Each one is listed under Breaking. ## 1.14.1 (2026-10-29) ### Fixed - An agent no longer reads a stage direction aloud. ## 1.13.2 (2026-10-29) ### Added - A framed preview asks the page that framed it to offer an MCP sign-in. ### Fixed - A cold preview in `curb dev` loads 136 files instead of 511. ## 1.12.10 (2026-10-28) ### Added - `curb conversations` prints a project's recorded conversations with every tool call. - `curb deploy --json` prints the result as one JSON line. - `curb deploy` accepts a host-issued token through `CURB_PLATFORM_TOKEN_FILE`. - `curb dev` can take each call's room from `CURB_REALTIME_SESSION_URL`. - Curb runs on the model key a hosted workspace supplies. - The preview picks the microphone before a call and explains a blocked one. - The preview's context column folds away. ### Fixed - The live transcript stays steady while someone speaks. - A new project carries no `.npmrc`, which hosted builds refuse. - A new project installs quietly, and its agent introduces itself once. ## 1.11.9 (2026-10-26) ### Breaking - An agent without an `llm` prop runs on `kugelaudio.llm()` and needs `KUGELAUDIO_API_KEY`. - `DEFAULT_ANTHROPIC_MODEL` is removed. `DEFAULT_KUGELAUDIO_LLM_MODEL` names the new default. ### Added - `kugelaudio.llm()` runs an agent on KugelAudio's EU-hosted LLM. - `npm create kugelaudio` creates a Curb project. - `create-curb-app` asks nothing and starts on KugelAudio. - `npx curb login` replaces the key in `.env` for a KugelAudio project. ### Fixed - `end_call` hangs up on a voicemail menu, and the model learns when a hang-up was cancelled. - A hosted runner warms up without the LLM key and checks it when a call takes the agent. - A first run without keys or hosted access gets its next step from Curb. ## 1.10.1 (2026-10-26) ### Added - A transferred caller hears the agent's announcement, then a ringback tone, instead of silence. ## 1.9.0 (2026-10-25) ### Added - `useTransferCall()` and `` transfer a hosted phone call. ## 1.8.0 (2026-10-25) ### Added - `defineAgent({ goals, experiments })` declares goals and A/B experiments, and `useVariant()` reads a call's variant. ## 1.7.3 (2026-10-25) ### Added - An agent reads who placed the call from `call.direction`. ## 1.7.2 (2026-10-25) ### Added - `openaiCompatible()` takes `reasoningEffort`, `temperature`, `topP` and `body`. - New projects register the KugelAudio MCP servers in `.mcp.json`. ### Fixed - A skill in the preview's Context column looks like something you can open. ## 1.6.1 (2026-10-25) ### Fixed - The quickstart installs `curb/create-curb-app.tgz`, which no machine has kept from an older release. ## 1.6.0 (2026-10-25) ### Added - `curb check` warns `AGENT_LITERAL_DATE` when text the model reads hard-codes a date. ### Fixed - A `create-curb-app` that npx kept from an earlier run hands over to the newest release. ## 1.5.0 (2026-10-25) ### Added - `` fills the preview's Try form with demo input the model never sees. ### Fixed - The preview's graph opens large from a Graph button. - The preview's dialogs keep their content while they close. ## 1.4.33 (2026-10-24) ### Breaking - Conversations start at your agent and skills open only when needed. `curb check` names what an older project moves. - `` renders the skills a conversation opens. A leftover `` renders nothing and warns `AGENT_ROUTER_REMOVED`. - `DEFAULT_KUGEL_VOICE_ID` is removed. `kugelaudio.tts()` speaks with the default voice of its language. ### Added - `curb test` runs conversation scenarios headlessly, scripted or with a simulated caller. - `curb say` runs caller turns headlessly. - `curb test` and `curb say` fake a tool's `onSubmit`. - `curb check` type-checks the project and lists the variables an agent needs, without their values. - `` runs an action only after the caller says yes. - `firstTurn: { say }` opens every conversation with exact words. - `useClient()` reads what the caller's page sent. - `kugelaudio.stt()` hears callers with Kugel Ear 1, and new projects use it. - A tool's schema reaches the model whole: lists, nested objects and nullables work. - A German agent speaks with a German voice by default. - One voice session runs every route, with caller info, call identity and an uninterruptible greeting. - Agents call tools silently, know today's date and fall back in their own language. - The preview shows your conversation beside your agent's context, with a skills tree and a live graph. ### Fixed - `curb dev` runs saved code within seconds, on the same conversation, without running its tools again. - `curb dev` reloads only for a file that really changed. - A voice agent ending a call always says its goodbye. - On a voice call, a confirm action runs only after its read-back played in full. - The model sees a tool field's description after `.optional()` and an enum's allowed values. - `curb test` runs every scenario a file exports. - `curb build` and `create-curb-app` work again with `@livekit/agents` 1.9.4. - The preview opens for an agent whose skills import `node:crypto` or read `process.env`. ## 1.3.10 (2026-10-21) ### Breaking - Curb requires Node 22.12 or newer. ### Fixed - Kugel TTS retries a turn refused by the concurrent generation limit instead of going silent. - Dependency advisories are cleared. ## 1.3.6 (2026-10-20) ### Fixed - A project made by `create-curb-app` deploys, because it ships no symlink. ## 1.3.4 (2026-10-20) ### Added - `curb login`, `curb logout`, `curb deploy` and `curb secrets push` ship a local agent to KugelAudio hosting. - Calls sharing one managed runner get their own id, scratch directory and slot. ### Fixed - `curb build` verification bundles with esbuild 0.28.2. ## 1.2.6 (2026-10-14) ### Breaking - Providers are props. `` and `` take descriptors from `curb/providers`, and the environment holds keys only. - App messages replace the host channel. `useHost` and `useHostMessage` are removed; use `useSend()` and `useMessage()`. - `curb dev` is no longer a host. ### Added - `` lets the caller's app and the host change settings during a call. - `curb/client` connects a browser app to an agent. - Provider props are live: a change swaps the speech provider or LLM mid-call. - `kugel-3.5` is the default TTS model on hosted agents. ### Fixed - `curb build` ships `undici`. ### Performance - Voice runners take caller audio at 16 kHz and merge frames in linear time. ## 1.1.0 (2026-10-01) ### Added - Host protocol v1, and a self-hostable Curb. ### Fixed - A turn stays alive through tool and LLM failures. - A restored runner never blocks on a checkpoint. - The Azure Speech region has a default. ### Performance - Faster hosted builds and warm calls. - Shorter reply delays. ## 1.0.0 (2026-07-26) ### Breaking - One branching model, with an agent graph in the preview and author-settable icons. ## 0.3.0 (2026-07-20) ### Added - Editable voice orchestration and context controls. ## 0.2.0 (2026-07-17) ### Added - Conversation history and call replay are restored. ## 0.1.2 (2026-07-14) ### Added - First release: a React agent framework with one conversation for chat and voice, a CDN scaffold and `curb upgrade`.