feat!: remove Tavus voice provider and multiple deprecated types

.fern/metadata.json

@@ -1,5 +1,5 @@
 {
-    "cliVersion": "5.149.0",
+    "cliVersion": "5.205.2",
     "generatorName": "fernapi/fern-typescript-sdk",
     "generatorVersion": "3.63.0",
     "generatorConfig": {
@@ -11,10 +11,10 @@
         "omitUndefined": true,
         "enableInlineTypes": false
     },
-    "originGitCommit": "d60758e7438e5ed4f06365c77535f6aedb9f0eb6",
+    "originGitCommit": "670b1a9bae61538bfaaa6bdb9a445f4ef03e742f",
     "originGitCommitIsDirty": true,
     "invokedBy": "ci",
     "requestedVersion": "AUTO",
     "ciProvider": "unknown",
-    "sdkVersion": "3.0.0"
+    "sdkVersion": "4.0.0"
 }

changelog.md

@@ -1,3 +1,13 @@
+## [4.0.0] - 2026-11-12
+### Added
+- **`CallHealthDashboard*` type family** — 40+ new exported interfaces and enums for monitoring assistant goal performance, issue tracking, call availability, triage actions, coverage reporting, and paginated series data via the Call Health Dashboard API.
+- **`TransientAssistantDto`** — new interface for configuring a full assistant transiently without persisting it in Vapi, along with all supporting credential, transcriber, model, voice, and enum types.
+- **Traffic tab analytics types** (`TrafficTabMetricsDto` and related) — expose per-version call counts, latency percentiles, cost, timeseries, and structured-output distributions for the traffic analytics tab.
+- **`TransferAssistant` enhancements** — new `hooks` field accepting `TransferAssistantHooksItem` and new `assistantHooksInheritEnabled` boolean to control hook inheritance on the operator leg of warm transfers.
+- **`Reson8` provider support** — `ConversationNodeTranscriber.Reson8`, `WorkflowUserEditableCredentialsItem.Reson8`, and `WorkflowUserEditableTranscriber.Reson8` added across transcriber and credential unions, with corresponding `PipelineErrorReson8*` and `CallInProgressErrorVapifaultReson8*` values on `CallEndedReason`.
+- **New enum values across several types** — `CartesiaVoiceModel` gains `Sonic36`/`Sonic3620260827`; `CartesiaVoiceLanguage` gains `Or` (Odia) and `Ur` (Urdu); `TransferAssistantBackgroundSoundZero` and `WorkflowUserEditableBackgroundSoundZero` gain `WhiteNoise`, `City`, `Crowd`, and `Farm`; `CallEndedReason` gains guardrail and provider-fault entries.
+- **`baselineVersion`** — new optional display-only field added to `CodeTool`, `ComputerTool`, and `TransferCallTool`.
+
 ## [3.0.0] - 2026-10-08
 ### Breaking Changes
 - **`ToolPinnedConflictResponseDtoError`** and the standalone **`ToolPinnedConflictResponseDto.error`** field have been removed from the SDK. The API still returns `error: "tool_pinned"` in pinned-tool HTTP 409 responses. After validating or narrowing the error body, use **`Vapi.ConflictErrorBody`** or **`Vapi.ConflictErrorBody.ToolPinned`** to read its `error` discriminator. Replace the removed constant with the literal `"tool_pinned"`. The `message` field contains the human-readable reason and does not replace the discriminator.

package.json

@@ -1,6 +1,6 @@
 {
     "name": "@vapi-ai/server-sdk",
-    "version": "3.0.0",
+    "version": "4.0.0",
     "private": false,
     "repository": {
         "type": "git",