diff --git a/CHANGELOG.md b/CHANGELOG.md
index 784785f4c..69a750b89 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,46 @@
 # Changelog
 
+## [2.17.0] - 2025-10-04
+
+### API-Changes
+
+- [**breaking**] Remove deprecated verified_one_on_one_chats config.
+
+### CI
+
+- Require that Cargo.lock is up to date.
+- Fix CI checking Nix formatting.
+
+### Documentation
+
+- Comment about outdated timespan.
+- Clarify CALL events ([#7188](https://github.com/chatmail/core/pull/7188)).
+- Add docs for JS `BaseDeltaChat`.
+
+### Features / Changes
+
+- Make `text/calendar` alternative available as an attachment.
+- Better summary for calls.
+- Add strings 'You left the channel.' and 'Scan to join Channel' ([#7266](https://github.com/chatmail/core/pull/7266)).
+- Stock strings for calls.
+- ffi: Add DC_STR_CANT_DECRYPT_OUTGOING_MSGS define.
+
+### Fixes
+
+- Prefer last part in `multipart/alternative`.
+- Prefetch messages in limited batches ([#6915](https://github.com/chatmail/core/pull/6915)).
+- Forward calls as text messages.
+- Consistent spelling of "canceled" with a single "l".
+- Lowercase "call" in "Missed call" and similar strings.
+
+### Refactor
+
+- Return the reason when failing to place calls.
+
+### Tests
+
+- Test reception of `multipart/alternative` with `text/calendar`.
+
 ## [2.16.0] - 2025-10-01
 
 ### API-Changes
@@ -6815,3 +6856,4 @@ https://github.com/chatmail/core/pulls?q=is%3Apr+is%3Aclosed
 [2.14.0]: https://github.com/chatmail/core/compare/v2.13.0..v2.14.0
 [2.15.0]: https://github.com/chatmail/core/compare/v2.14.0..v2.15.0
 [2.16.0]: https://github.com/chatmail/core/compare/v2.15.0..v2.16.0
+[2.17.0]: https://github.com/chatmail/core/compare/v2.16.0..v2.17.0
diff --git a/Cargo.lock b/Cargo.lock
index 4763a392b..47fefd28a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1289,7 +1289,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat"
-version = "2.16.0"
+version = "2.17.0"
 dependencies = [
  "anyhow",
  "async-broadcast",
@@ -1399,7 +1399,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-jsonrpc"
-version = "2.16.0"
+version = "2.17.0"
 dependencies = [
  "anyhow",
  "async-channel 2.5.0",
@@ -1421,7 +1421,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-repl"
-version = "2.16.0"
+version = "2.17.0"
 dependencies = [
  "anyhow",
  "deltachat",
@@ -1437,7 +1437,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-rpc-server"
-version = "2.16.0"
+version = "2.17.0"
 dependencies = [
  "anyhow",
  "deltachat",
@@ -1466,7 +1466,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat_ffi"
-version = "2.16.0"
+version = "2.17.0"
 dependencies = [
  "anyhow",
  "deltachat",
diff --git a/Cargo.toml b/Cargo.toml
index 1de886afb..30b865681 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat"
-version = "2.16.0"
+version = "2.17.0"
 edition = "2024"
 license = "MPL-2.0"
 rust-version = "1.85"
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index 00e08c520..9f6f69c1b 100644
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "2.16.0"
+version = "2.17.0"
 description = "Deltachat FFI"
 edition = "2018"
 readme = "README.md"
diff --git a/deltachat-jsonrpc/Cargo.toml b/deltachat-jsonrpc/Cargo.toml
index 4b2996a98..70dfab6fa 100644
--- a/deltachat-jsonrpc/Cargo.toml
+++ b/deltachat-jsonrpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-jsonrpc"
-version = "2.16.0"
+version = "2.17.0"
 description = "DeltaChat JSON-RPC API"
 edition = "2021"
 license = "MPL-2.0"
diff --git a/deltachat-jsonrpc/typescript/package.json b/deltachat-jsonrpc/typescript/package.json
index 670c92db8..789b1b91d 100644
--- a/deltachat-jsonrpc/typescript/package.json
+++ b/deltachat-jsonrpc/typescript/package.json
@@ -54,5 +54,5 @@
   },
   "type": "module",
   "types": "dist/deltachat.d.ts",
-  "version": "2.16.0"
+  "version": "2.17.0"
 }
diff --git a/deltachat-repl/Cargo.toml b/deltachat-repl/Cargo.toml
index 8d9479060..d03a8188a 100644
--- a/deltachat-repl/Cargo.toml
+++ b/deltachat-repl/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-repl"
-version = "2.16.0"
+version = "2.17.0"
 license = "MPL-2.0"
 edition = "2021"
 repository = "https://github.com/chatmail/core"
diff --git a/deltachat-rpc-client/pyproject.toml b/deltachat-rpc-client/pyproject.toml
index 276bd0a4b..0475673a1 100644
--- a/deltachat-rpc-client/pyproject.toml
+++ b/deltachat-rpc-client/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "deltachat-rpc-client"
-version = "2.16.0"
+version = "2.17.0"
 description = "Python client for Delta Chat core JSON-RPC interface"
 classifiers = [
     "Development Status :: 5 - Production/Stable",
diff --git a/deltachat-rpc-server/Cargo.toml b/deltachat-rpc-server/Cargo.toml
index b33c89ffc..2887c7714 100644
--- a/deltachat-rpc-server/Cargo.toml
+++ b/deltachat-rpc-server/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-rpc-server"
-version = "2.16.0"
+version = "2.17.0"
 description = "DeltaChat JSON-RPC server"
 edition = "2021"
 readme = "README.md"
diff --git a/deltachat-rpc-server/npm-package/package.json b/deltachat-rpc-server/npm-package/package.json
index 131e5f130..1dcdeceb7 100644
--- a/deltachat-rpc-server/npm-package/package.json
+++ b/deltachat-rpc-server/npm-package/package.json
@@ -15,5 +15,5 @@
   },
   "type": "module",
   "types": "index.d.ts",
-  "version": "2.16.0"
+  "version": "2.17.0"
 }
diff --git a/python/pyproject.toml b/python/pyproject.toml
index 9a10feab4..82c102898 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "deltachat"
-version = "2.16.0"
+version = "2.17.0"
 description = "Python bindings for the Delta Chat Core library using CFFI against the Rust-implemented libdeltachat"
 readme = "README.rst"
 requires-python = ">=3.8"
diff --git a/release-date.in b/release-date.in
index ca7a84907..37d5d814b 100644
--- a/release-date.in
+++ b/release-date.in
@@ -1 +1 @@
-2025-10-01
\ No newline at end of file
+2025-10-04
\ No newline at end of file