diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 57dc0c3da..e4e1c3ce9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.33.0"
+  ".": "0.34.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4f4605a2b..856a07c63 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,32 @@
 # Changelog
 
+## [0.34.0](https://github.com/sentdm/sent-dm-python/compare/v0.33.0...v0.34.0) (2026-08-17)
+
+
+### Highlights
+
+Webhook payloads are now typed. The events Sent POSTs to your endpoint — `MessageEvent`, `InboundMessageEvent` and `TemplateEvent`, each with its own payload type — are generated types you can deserialize into, instead of a shape you had to hand-write from the docs.
+
+The webhook delivery log is typed too. `event_data` on `GET /v3/webhooks/{id}/events` returns the exact envelope that was delivered, and now describes itself as one of those three rather than an opaque object.
+
+Also in this release:
+
+- `csp_id` on the brand object is deprecated and will be removed in a later release. It identifies the Campaign Service Provider that registered the brand, which is Sent, so the value is the same for every account. There is no replacement. Your own TCR identifiers, `tcr_brand_id` and `universal_ein`, are unaffected.
+- Corrected descriptions for blocked sends, which now name the cases that gate a send before any delivery attempt: insufficient balance, a template not approved for sending, and free-form content with no open conversation.
+- `campaign.volume` documents what an omitted value does. Leave it out and the campaign registers as standard, the higher-fee tier, with no error.
+
+### Features
+
+* **api:** sync OpenAPI spec from production ([6198111](https://github.com/sentdm/sent-dm-python/commit/61981113dc6841ee55ac6ad62454a74604c51a12))
+* **api:** sync OpenAPI spec from production ([42c16a3](https://github.com/sentdm/sent-dm-python/commit/42c16a3d8b549f8bdf05f2e7fe4d6807af663f7f))
+* **api:** sync OpenAPI spec from production ([d0e7ad8](https://github.com/sentdm/sent-dm-python/commit/d0e7ad81bf921b374678b632346f73d290a7dc1f))
+* **sdk:** expose the delivered webhook payloads as models ([d6f5e66](https://github.com/sentdm/sent-dm-python/commit/d6f5e669b5c02cedf5f2bebf5e3852e6f70425e4))
+
+
+### Chores
+
+* add eager seal-dispatch workflow ([4904ff4](https://github.com/sentdm/sent-dm-python/commit/4904ff460c65d456826422bf8c394281bbfd6279))
+
 ## [0.33.0](https://github.com/sentdm/sent-dm-python/compare/v0.32.0...v0.33.0) (2026-08-08)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 6740f06c1..da8cdfd15 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "sentdm"
-version = "0.33.0"
+version = "0.34.0"
 description = "The official Python library for the Sent API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/sent_dm/_version.py b/src/sent_dm/_version.py
index 10004e89c..0f5e5b10b 100644
--- a/src/sent_dm/_version.py
+++ b/src/sent_dm/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "sent_dm"
-__version__ = "0.33.0"  # x-release-please-version
+__version__ = "0.34.0"  # x-release-please-version