linq-team · jflayhart · Apr 9, 2026 · Apr 8, 2026 · Apr 8, 2026 · Apr 8, 2026
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.2.2"
+  ".": "0.2.3"
 }
diff --git a/.stats.yml b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 34
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/linq%2Flinq-api-v3-c5bcd9ca6063e60608524c34230d29b3d85e3d44b43edb686540e3400692fda7.yml
-openapi_spec_hash: 887410236b624086a0e22a9fa8d468be
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/linq%2Flinq-api-v3-6623e8539cf7c04da673c1f276bd43b034c97681af99ce23cb2db5ec262cbd8f.yml
+openapi_spec_hash: d44bf2ba899fe49d48340ed053de64d2
 config_hash: be5410c6c4d8f36a7cd93c8950bc90d6
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 0.2.3 (2026-04-08)
+
+Full Changelog: [v0.2.2...v0.2.3](https://github.com/linq-team/linq-python/compare/v0.2.2...v0.2.3)
+
+### Bug Fixes
+
+* **api-service:** add created_at and make sent_at nullable in SentMessage ([fa68395](https://github.com/linq-team/linq-python/commit/fa683950b661507844f9d1f22c4716daf9805810))
+* block SMS group participant changes and fix e2e test failures ([e05f1af](https://github.com/linq-team/linq-python/commit/e05f1af36a6d37d13952bdad56f16b903bfccc34))
+
 ## 0.2.2 (2026-04-08)
 
 Full Changelog: [v0.2.1...v0.2.2](https://github.com/linq-team/linq-python/compare/v0.2.1...v0.2.2)

diff --git a/pyproject.toml b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "linq-python"
-version = "0.2.2"
+version = "0.2.3"
 description = "The official Python library for the linq-api-v3 API"
 dynamic = ["readme"]
 license = "Apache-2.0"

diff --git a/src/linq/_version.py b/src/linq/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "linq"
-__version__ = "0.2.2"  # x-release-please-version
+__version__ = "0.2.3"  # x-release-please-version
diff --git a/src/linq/resources/attachments.py b/src/linq/resources/attachments.py
@@ -219,6 +219,10 @@ def create(
               application/x-iwork-keynote-sffkey, application/epub+zip, application/zip,
               application/x-gzip
 
+              **Transcoded on delivery:**
+
+              - `audio/x-caf` — CAF files are transcoded to `audio/mp4` for delivery.
+
               **Deprecated (accepted but transcoded):**
 
               - `audio/mp3` — Deprecated. Use `audio/mpeg` instead. Files sent as audio/mp3
@@ -490,6 +494,10 @@ async def create(
               application/x-iwork-keynote-sffkey, application/epub+zip, application/zip,
               application/x-gzip
 
+              **Transcoded on delivery:**
+
+              - `audio/x-caf` — CAF files are transcoded to `audio/mp4` for delivery.
+
               **Deprecated (accepted but transcoded):**
 
               - `audio/mp3` — Deprecated. Use `audio/mpeg` instead. Files sent as audio/mp3

diff --git a/src/linq/types/attachment_create_params.py b/src/linq/types/attachment_create_params.py
@@ -34,6 +34,10 @@ class AttachmentCreateParams(TypedDict, total=False):
     application/x-iwork-keynote-sffkey, application/epub+zip, application/zip,
     application/x-gzip
 
+    **Transcoded on delivery:**
+
+    - `audio/x-caf` — CAF files are transcoded to `audio/mp4` for delivery.
+
     **Deprecated (accepted but transcoded):**
 
     - `audio/mp3` — Deprecated. Use `audio/mpeg` instead. Files sent as audio/mp3

diff --git a/src/linq/types/attachment_retrieve_response.py b/src/linq/types/attachment_retrieve_response.py
@@ -38,6 +38,10 @@ class AttachmentRetrieveResponse(BaseModel):
     application/x-iwork-keynote-sffkey, application/epub+zip, application/zip,
     application/x-gzip
 
+    **Transcoded on delivery:**
+
+    - `audio/x-caf` — CAF files are transcoded to `audio/mp4` for delivery.
+
     **Deprecated (accepted but transcoded):**
 
     - `audio/mp3` — Deprecated. Use `audio/mpeg` instead. Files sent as audio/mp3

diff --git a/src/linq/types/chats/sent_message.py b/src/linq/types/chats/sent_message.py
@@ -24,6 +24,9 @@ class SentMessage(BaseModel):
     id: str
     """Message identifier (UUID)"""
 
+    created_at: datetime
+    """When the message was created"""
+
     delivery_status: Literal["pending", "queued", "sent", "delivered", "failed"]
     """Current delivery status of a message"""
 
@@ -33,8 +36,8 @@ class SentMessage(BaseModel):
     parts: List[Part]
     """Message parts in order (text, media, and link)"""
 
-    sent_at: datetime
-    """When the message was sent"""
+    sent_at: Optional[datetime] = None
+    """When the message was actually sent (null if still queued)"""
 
     delivered_at: Optional[datetime] = None
     """When the message was delivered"""