ancientcomputing · Nov 10, 2026 · Nov 10, 2026 · Nov 10, 2026 · Nov 10, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -24,6 +24,34 @@ recompiling. A breaking change waits for 2.0. (Before RC.1, `1.0.0-beta.N` and e
 beta.4 → RC.1 changes that can break a build are listed under *Changed — breaking (pre-GA)* in the
 RC.1 entry, and each entry's own "Beta caveats" apply to the betas.)
 
+## 2.3.1 — GA — 2026-11-10
+
+Fixes Private Cloud Compute (PCC) turns that stall. No API change: code that builds against 2.3.0
+builds unchanged. Only `LocalLMLabSDKCore` has a source change; `LocalLMLabSDKClaude`,
+`LocalLMLabSDKInference` and `LocalLMLabSDKRemote` are rebuilt for the version number only.
+
+### Fixed
+
+- **A new PCC session is no longer prewarmed.** `makeSession` prewarmed every session, and for PCC
+  the prewarm is a server request of its own, sent the moment the session is made. On macOS 27.2
+  the server often generates a few hundred tokens for it anyway and rejects them (a recitation
+  rejection, `ModelManagerServices.InferenceError` 2008). A turn started on the same session at the
+  same time then stalled for about 30 seconds and ended with no text and no error. An app that
+  makes a session and sends at once hit it, even for a prompt like "2+2" with no tools; one that
+  makes its session earlier (when a chat opens, say) usually didn't. The model runs in Apple's
+  cloud, so there is nothing local to warm. Sessions for other providers are prewarmed as before.
+
+### Checksums (SHA-256)
+
+```
+LocalLMLabSDKCore-2.3.1-GA.xcframework.zip       0dc1e30235607fa2991e13fc97ca1f5c87b1b60b33999570d09ac31ae0c7990c
+LocalLMLabSDKClaude-2.3.1-GA.xcframework.zip     4b4989f288b70d7762d9151fe1c7745cc76234854dd97693a53bbc81569955e1
+LocalLMLabSDKInference-2.3.1-GA.xcframework.zip  7663074fc31919ba2970c99d7835fbad93415370b29ad828a32def0db73c7e8e
+LocalLMLabSDKRemote-2.3.1-GA.xcframework.zip     79247d567ad5dddecd14b0cc7662ab1ac61a322c3507029abd9fd4fb093d9ab6
+```
+
+---
+
 ## 2.3.0 — GA — 2026-10-27
 
 OpenAI's Decisions API as a fourth decider, and refusals in `Decision`. Additive only: code that

diff --git a/Components/Package.swift b/Components/Package.swift
@@ -24,17 +24,17 @@ struct SDKRelease {
 // or edit `defaultSDKVersion`. For a release not listed, add its entry (URL follows the pattern
 // below; checksum is the `.sha256` next to the zip on that GitHub release). Keep this in step
 // with `examples/model-switch/Package.swift`, which consumes Core through this package.
-let defaultSDKVersion = "2.3.0-GA"
+let defaultSDKVersion = "2.3.1-GA"
 
 let knownSDKReleases: [String: SDKRelease] = [
-    "2.2.0-GA": SDKRelease(
-        url: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKCore-2.2.0-GA.xcframework.zip",
-        checksum: "5efc40cae9f8a1bf53bfe03195c5365398bc9501b3e6b0feee3e5c67385537f4"
-    ),
     "2.3.0-GA": SDKRelease(
         url: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKCore-2.3.0-GA.xcframework.zip",
         checksum: "7821197d0cf5b4c92e36af5c537295e594afbb55d60d2f98b0773a3625403575"
     ),
+    "2.3.1-GA": SDKRelease(
+        url: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKCore-2.3.1-GA.xcframework.zip",
+        checksum: "0dc1e30235607fa2991e13fc97ca1f5c87b1b60b33999570d09ac31ae0c7990c"
+    ),
 ]
 
 func failManifest(_ message: String) -> Never {

diff --git a/README.md b/README.md
@@ -1,5 +1,5 @@
 Notes: 
-1. The 2.3.0-GA release branch is at [https://github.com/ancientcomputing/locallm/tree/2.3.0-GA](https://github.com/ancientcomputing/locallm/tree/2.3.0-GA)
+1. The 2.3.1-GA release branch is at [https://github.com/ancientcomputing/locallm/tree/2.3.1-GA](https://github.com/ancientcomputing/locallm/tree/2.3.1-GA)
 2. The project website is at [https://thisbrain.ai/locallm/](https://thisbrain.ai/locallm/)
 
 # LocalLM Lab
@@ -40,7 +40,7 @@ doesn't carry.
 
 **Product page:** [thisbrain.ai/locallm](https://thisbrain.ai/locallm) — or
 get the app directly:
-[LocalLM Lab 2.3.0-GA (arm64 DMG)](https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLM.Lab-2.3.0-GA-arm64.dmg).
+[LocalLM Lab 2.3.1-GA (arm64 DMG)](https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLM.Lab-2.3.1-GA-arm64.dmg).
 
 ## LocalLM Lab SDK
 

diff --git a/docs/api-surface.md b/docs/api-surface.md
@@ -2,7 +2,7 @@
 
 > Machine-generated by `scripts/dump-public-api.sh` from the built `.swiftinterface`s.
 > Do not hand-edit. `sdk-guide.md` §12 is the *narrative* reference; this is the check.
-> SDK version: `"2.3.0"` (the published `v2.3.0-GA` xcframeworks, built from 9b45072) · generated 2026-10-27T19:05Z
+> SDK version: `"2.3.1"` (the published `v2.3.1-GA` xcframeworks, built from b310dfa) · generated 2026-11-10T17:23Z
 
 ## LocalLMLabSDKCore
 

diff --git a/examples/README.md b/examples/README.md
@@ -59,7 +59,7 @@ advanced model-layer features (Private Cloud Compute, open-weight/MLX, Claude, o
 need it — but it isn't universal: [`os-matrix/`](os-matrix/) is built and tested to run unchanged
 on **macOS 26** too (see its README).
 
-The examples on this `2.3.0-GA` branch build against SDK **`2.3.0-GA`**; the ones on `main`
+The examples on this `2.3.1-GA` branch build against SDK **`2.3.1-GA`**; the ones on `main`
 build against the latest stable release. No environment variable is needed for either.
 
 ### What each example needs
@@ -158,7 +158,7 @@ resolution doesn't inherit shell environment variables.
 
 ```bash
 cd examples/repo-qa
-LOCALLM_SDK_VERSION=2.2.0-GA \
+LOCALLM_SDK_VERSION=2.3.0-GA \
   DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer \
   swift run RepoQA facebook/react
 ```
@@ -171,13 +171,13 @@ previous one. (`code-buddy/sample-workspace/Package.swift` is not one of these
 dependency-free fixture for the code-buddy walkthrough, not an SDK consumer.)
 
 ```swift
-let defaultSDKVersion = "2.3.0-GA"
+let defaultSDKVersion = "2.3.1-GA"
 
 let knownSDKReleases: [String: SDKRelease] = [
-    "2.2.0-GA": SDKRelease(url: "…/v2.2.0-GA/LocalLMLabSDKCore-2.2.0-GA.xcframework.zip",
-                           checksum: "5efc40ca…"),
     "2.3.0-GA": SDKRelease(url: "…/v2.3.0-GA/LocalLMLabSDKCore-2.3.0-GA.xcframework.zip",
                            checksum: "7821197d…"),
+    "2.3.1-GA": SDKRelease(url: "…/v2.3.1-GA/LocalLMLabSDKCore-2.3.1-GA.xcframework.zip",
+                           checksum: "0dc1e302…"),
 ]
 ```
 
@@ -188,10 +188,10 @@ every module ships its own checksum (`Core`, `Inference`, `Remote`, and `Claude`
 distinct `.xcframework.zip.sha256`; don't reuse Core's for another module):
 
 ```bash
-curl -sL https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKCore-2.3.0-GA.xcframework.zip.sha256
-# → 7821197d0cf5b4c92e36af5c537295e594afbb55d60d2f98b0773a3625403575
-curl -sL https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKClaude-2.3.0-GA.xcframework.zip.sha256
-# → 80e143412d0bd0538091b59ea050015d28828855809203ea51c1cd49675e8449
+curl -sL https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKCore-2.3.1-GA.xcframework.zip.sha256
+# → 0dc1e30235607fa2991e13fc97ca1f5c87b1b60b33999570d09ac31ae0c7990c
+curl -sL https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKClaude-2.3.1-GA.xcframework.zip.sha256
+# → 4b4989f288b70d7762d9151fe1c7745cc76234854dd97693a53bbc81569955e1
 ```
 
 Then point `defaultSDKVersion` at it (works everywhere, Xcode included) or pass

diff --git a/examples/aiql/Package.swift b/examples/aiql/Package.swift
@@ -31,21 +31,21 @@ struct SDKRelease {
 // uses. `knownSDKReleases` carries this plus the previous release. Build against another
 // published version: set LOCALLM_SDK_VERSION in your shell (works for `swift build` / CI, NOT
 // inside Xcode), or edit `defaultSDKVersion` here.
-let defaultSDKVersion = "2.3.0-GA"
+let defaultSDKVersion = "2.3.1-GA"
 
 let knownSDKReleases: [String: SDKRelease] = [
-    "2.2.0-GA": SDKRelease(
-        coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKCore-2.2.0-GA.xcframework.zip",
-        coreChecksum: "5efc40cae9f8a1bf53bfe03195c5365398bc9501b3e6b0feee3e5c67385537f4",
-        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKInference-2.2.0-GA.xcframework.zip",
-        inferenceChecksum: "afd427fb741a820f55bc0a384850ae6404608f5ad73d185a583a89e8f0d61a61"
-    ),
     "2.3.0-GA": SDKRelease(
         coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKCore-2.3.0-GA.xcframework.zip",
         coreChecksum: "7821197d0cf5b4c92e36af5c537295e594afbb55d60d2f98b0773a3625403575",
         inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKInference-2.3.0-GA.xcframework.zip",
         inferenceChecksum: "63dc8bcba5e91e1324809ca412a23ebb0b9e04386361436eacc0be9fe6d4a8e0"
     ),
+    "2.3.1-GA": SDKRelease(
+        coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKCore-2.3.1-GA.xcframework.zip",
+        coreChecksum: "0dc1e30235607fa2991e13fc97ca1f5c87b1b60b33999570d09ac31ae0c7990c",
+        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKInference-2.3.1-GA.xcframework.zip",
+        inferenceChecksum: "7663074fc31919ba2970c99d7835fbad93415370b29ad828a32def0db73c7e8e"
+    ),
 ]
 
 func failManifest(_ message: String) -> Never {

diff --git a/examples/aiql/README.md b/examples/aiql/README.md
@@ -103,7 +103,7 @@ export DEVELOPER_DIR=/Applications/Xcode.app/Contents/Developer
 ```
 
 Skip it if `xcode-select -p` already points at Xcode 27 (adjust the path if yours lives elsewhere). Leaves your system default alone; lasts only for the current terminal (re-run it in each new one,
-or add it to your `~/.zshrc`). `Package.swift` builds against SDK `2.3.0-GA` with no further
+or add it to your `~/.zshrc`). `Package.swift` builds against SDK `2.3.1-GA` with no further
 setup (AIQL needs it: it uses `lab.mcp.setFileBackedOutput`, new in 2.0) — it links **two** binaries, `LocalLMLabSDKCore.xcframework` and
 `LocalLMLabSDKInference.xcframework` (the MLX runtime), from that one GitHub Release.
 `export LOCALLM_SDK_VERSION=<version>` to pin a different published release. **No Metal Toolchain

diff --git a/examples/code-buddy/Package.swift b/examples/code-buddy/Package.swift
@@ -25,21 +25,21 @@ struct SDKRelease {
 // `swift build` / CI, NOT inside Xcode), or edit `defaultSDKVersion` here. For a
 // release not listed, add its entry (URL + the `.sha256` next to the zip on the
 // GitHub release) or just replace the strings in place.
-let defaultSDKVersion = "2.3.0-GA"
+let defaultSDKVersion = "2.3.1-GA"
 
 let knownSDKReleases: [String: SDKRelease] = [
-    "2.2.0-GA": SDKRelease(
-        coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKCore-2.2.0-GA.xcframework.zip",
-        coreChecksum: "5efc40cae9f8a1bf53bfe03195c5365398bc9501b3e6b0feee3e5c67385537f4",
-        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKInference-2.2.0-GA.xcframework.zip",
-        inferenceChecksum: "afd427fb741a820f55bc0a384850ae6404608f5ad73d185a583a89e8f0d61a61"
-    ),
     "2.3.0-GA": SDKRelease(
         coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKCore-2.3.0-GA.xcframework.zip",
         coreChecksum: "7821197d0cf5b4c92e36af5c537295e594afbb55d60d2f98b0773a3625403575",
         inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKInference-2.3.0-GA.xcframework.zip",
         inferenceChecksum: "63dc8bcba5e91e1324809ca412a23ebb0b9e04386361436eacc0be9fe6d4a8e0"
     ),
+    "2.3.1-GA": SDKRelease(
+        coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKCore-2.3.1-GA.xcframework.zip",
+        coreChecksum: "0dc1e30235607fa2991e13fc97ca1f5c87b1b60b33999570d09ac31ae0c7990c",
+        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKInference-2.3.1-GA.xcframework.zip",
+        inferenceChecksum: "7663074fc31919ba2970c99d7835fbad93415370b29ad828a32def0db73c7e8e"
+    ),
 ]
 
 func failManifest(_ message: String) -> Never {

diff --git a/examples/components-updates-demo/README.md b/examples/components-updates-demo/README.md
@@ -25,9 +25,9 @@ Requires macOS 27+ on Apple Silicon (Xcode 27 to build). No permissions, no sign
 
 ## Getting the SDK
 
-This branch tracks `2.3.0-GA`. Nothing to download by hand — `Package.swift` depends on the sibling
+This branch tracks `2.3.1-GA`. Nothing to download by hand — `Package.swift` depends on the sibling
 [`Components`](../../Components/) package, which resolves `LocalLMLabSDKCore` as a binary dependency and builds
-against `2.3.0-GA` by default. Set `LOCALLM_SDK_VERSION` in a shell (not Xcode) to pin another published
+against `2.3.1-GA` by default. Set `LOCALLM_SDK_VERSION` in a shell (not Xcode) to pin another published
 release — see [`../README.md`](../README.md#building--running-an-sdk-example).
 
 ## Build and run

diff --git a/examples/jevdk/Package.swift b/examples/jevdk/Package.swift
@@ -33,7 +33,7 @@ struct SDKRelease {
 // or edit `defaultSDKVersion` here. For a release not listed, add its entry (URL + the `.sha256`
 // next to each zip on the GitHub release) or just replace the strings in place. Only 2.3 and
 // later: the OpenAI backend doesn't build against 2.2 or earlier.
-let defaultSDKVersion = "2.3.0-GA"
+let defaultSDKVersion = "2.3.1-GA"
 
 let knownSDKReleases: [String: SDKRelease] = [
     // 2.3.0-GA: OpenAI's Decisions API (JevProviderConfig.openAI) and Decision.refusals, which
@@ -46,6 +46,14 @@ let knownSDKReleases: [String: SDKRelease] = [
         inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKInference-2.3.0-GA.xcframework.zip",
         inferenceChecksum: "63dc8bcba5e91e1324809ca412a23ebb0b9e04386361436eacc0be9fe6d4a8e0"
     ),
+    "2.3.1-GA": SDKRelease(
+        coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKCore-2.3.1-GA.xcframework.zip",
+        coreChecksum: "0dc1e30235607fa2991e13fc97ca1f5c87b1b60b33999570d09ac31ae0c7990c",
+        remoteURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKRemote-2.3.1-GA.xcframework.zip",
+        remoteChecksum: "79247d567ad5dddecd14b0cc7662ab1ac61a322c3507029abd9fd4fb093d9ab6",
+        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKInference-2.3.1-GA.xcframework.zip",
+        inferenceChecksum: "7663074fc31919ba2970c99d7835fbad93415370b29ad828a32def0db73c7e8e"
+    ),
 ]
 
 func failManifest(_ message: String) -> Never {

diff --git a/examples/jevdk/README.md b/examples/jevdk/README.md
@@ -9,7 +9,7 @@ swift build -c release
 ```
 
 Needs an Apple-silicon Mac, macOS 27 and Xcode 27 (Swift 6.4). `Package.swift` builds against SDK
-`2.3.0-GA` with no further setup (the OpenAI backend needs 2.3): `LocalLMLabSDKCore`,
+`2.3.1-GA` with no further setup (the OpenAI backend needs 2.3): `LocalLMLabSDKCore`,
 `LocalLMLabSDKRemote` and `LocalLMLabSDKInference` (the MLX runtime) come from that GitHub Release.
 No Metal Toolchain needed; the prebuilt Inference xcframework bundles the compiled shaders. To
 build against another release, set `LOCALLM_SDK_VERSION` (see [the README one folder up](../README.md)).

diff --git a/examples/mcp-chat/Package.swift b/examples/mcp-chat/Package.swift
@@ -31,17 +31,17 @@ struct SDKRelease {
 // The SDK release this example builds against with no setup. Build against another published
 // version: set LOCALLM_SDK_VERSION in your shell (works for `swift build` / CI, NOT inside Xcode),
 // or edit `defaultSDKVersion` here.
-let defaultSDKVersion = "2.3.0-GA"
+let defaultSDKVersion = "2.3.1-GA"
 
 let knownSDKReleases: [String: SDKRelease] = [
-    "2.2.0-GA": SDKRelease(
-        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKInference-2.2.0-GA.xcframework.zip",
-        inferenceChecksum: "afd427fb741a820f55bc0a384850ae6404608f5ad73d185a583a89e8f0d61a61"
-    ),
     "2.3.0-GA": SDKRelease(
         inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKInference-2.3.0-GA.xcframework.zip",
         inferenceChecksum: "63dc8bcba5e91e1324809ca412a23ebb0b9e04386361436eacc0be9fe6d4a8e0"
     ),
+    "2.3.1-GA": SDKRelease(
+        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKInference-2.3.1-GA.xcframework.zip",
+        inferenceChecksum: "7663074fc31919ba2970c99d7835fbad93415370b29ad828a32def0db73c7e8e"
+    ),
 ]
 
 func failManifest(_ message: String) -> Never {

diff --git a/examples/mcp-chat/README.md b/examples/mcp-chat/README.md
@@ -7,7 +7,7 @@ shows Todoist's task list under the call.
 
 Qwen3 8B through MLX by default; Apple's on-device model as an alternative (Settings).
 
-`Package.swift` builds against SDK `2.3.0-GA` with no further setup (MCP Apps support is new in
+`Package.swift` builds against SDK `2.3.1-GA` with no further setup (MCP Apps support is new in
 2.0): `LocalLMLabSDKCore` and `LocalLMLabSDKInference` (the MLX runtime) come from that GitHub
 Release, `Components` (`../../Components`) and `MCPAppsHost` (`../../MCPAppsHost`) from this repo as
 source. Needs macOS 27 and Xcode 27 (Swift 6.4). No Metal Toolchain needed — the prebuilt Inference

diff --git a/examples/mlx-control-room/Package.swift b/examples/mlx-control-room/Package.swift
@@ -25,21 +25,21 @@ struct SDKRelease {
 // its entry (URL + the `.sha256` next to the zip on the GitHub release) or just replace the strings in
 // place. Needs a release that includes the model pin / update / cleanup APIs (1.0.0-RC.1 as re-published
 // on 2026-09-18, or later).
-let defaultSDKVersion = "2.3.0-GA"
+let defaultSDKVersion = "2.3.1-GA"
 
 let knownSDKReleases: [String: SDKRelease] = [
-    "2.2.0-GA": SDKRelease(
-        coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKCore-2.2.0-GA.xcframework.zip",
-        coreChecksum: "5efc40cae9f8a1bf53bfe03195c5365398bc9501b3e6b0feee3e5c67385537f4",
-        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKInference-2.2.0-GA.xcframework.zip",
-        inferenceChecksum: "afd427fb741a820f55bc0a384850ae6404608f5ad73d185a583a89e8f0d61a61"
-    ),
     "2.3.0-GA": SDKRelease(
         coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKCore-2.3.0-GA.xcframework.zip",
         coreChecksum: "7821197d0cf5b4c92e36af5c537295e594afbb55d60d2f98b0773a3625403575",
         inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKInference-2.3.0-GA.xcframework.zip",
         inferenceChecksum: "63dc8bcba5e91e1324809ca412a23ebb0b9e04386361436eacc0be9fe6d4a8e0"
     ),
+    "2.3.1-GA": SDKRelease(
+        coreURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKCore-2.3.1-GA.xcframework.zip",
+        coreChecksum: "0dc1e30235607fa2991e13fc97ca1f5c87b1b60b33999570d09ac31ae0c7990c",
+        inferenceURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKInference-2.3.1-GA.xcframework.zip",
+        inferenceChecksum: "7663074fc31919ba2970c99d7835fbad93415370b29ad828a32def0db73c7e8e"
+    ),
 ]
 
 func failManifest(_ message: String) -> Never {

diff --git a/examples/model-switch/Package.swift b/examples/model-switch/Package.swift
@@ -28,17 +28,17 @@ struct SDKRelease {
 // `swift build` / CI, NOT inside Xcode), or edit `defaultSDKVersion` here. For a
 // release not listed, add its entry (URL + the `.sha256` next to the zip on the
 // GitHub release) or just replace the strings in place.
-let defaultSDKVersion = "2.3.0-GA"
+let defaultSDKVersion = "2.3.1-GA"
 
 let knownSDKReleases: [String: SDKRelease] = [
-    "2.2.0-GA": SDKRelease(
-        remoteURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.2.0-GA/LocalLMLabSDKRemote-2.2.0-GA.xcframework.zip",
-        remoteChecksum: "1c9af025c700bc0c41c80387c1d6a59ba2f2ab6203eb8ffd8548d61c6ac1fe38"
-    ),
     "2.3.0-GA": SDKRelease(
         remoteURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.0-GA/LocalLMLabSDKRemote-2.3.0-GA.xcframework.zip",
         remoteChecksum: "dae65d45bea196f6cd2538328fad1a0e33eceae5fac5ee965183706ac942daaf"
     ),
+    "2.3.1-GA": SDKRelease(
+        remoteURL: "https://github.com/ancientcomputing/locallm/releases/download/v2.3.1-GA/LocalLMLabSDKRemote-2.3.1-GA.xcframework.zip",
+        remoteChecksum: "79247d567ad5dddecd14b0cc7662ab1ac61a322c3507029abd9fd4fb093d9ab6"
+    ),
 ]
 
 func failManifest(_ message: String) -> Never {