diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3b599cc9..27a60543e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,44 @@
 # Changelog
 
+## [1.156.3] - 2025-03-09
+
+### API-Changes
+
+- jsonrpc: Add import_vcard_contents() method.
+- jsonrpc: Add API to make and import vCards.
+- [**breaking**] Remove save_mime_headers config option and dc_get_mime_headers().
+- [**breaking**] Remove key_gen_type config.
+
+### Features / Changes
+
+- Add chat-deleted event.
+- Delete messages on IMAP when deleting chat ([#6613](https://github.com/deltachat/deltachat-core-rust/pull/6613)).
+- Allow doubled avatar resolution
+
+### Fixes
+
+- Move Chat-Group-Avatar to hidden headers.
+- Ignore outer Chat-User-Avatar header in Autocrypt-encrypted messages.
+
+### Build system
+
+- Use mailbuilder from crates.io.
+- Update iroh to 0.33.
+
+### Documentation
+
+- Nonstandard headers needing DKIM protection should be hidden.
+
+### Refactor
+
+- Recode_to_size(): Rename strict_limits to is_avatar.
+
+### Tests
+
+- Test for ChatDeleted event.
+- Replace create_chat() with get_chat() in test_setup_contact_ex() and test_secure_join().
+- Transfer vCards in TestContext.create_chat().
+
 ## [1.156.2] - 2025-03-02
 
 ### Fixes
@@ -5909,3 +5948,4 @@ https://github.com/deltachat/deltachat-core-rust/pulls?q=is%3Apr+is%3Aclosed
 [1.156.0]: https://github.com/deltachat/deltachat-core-rust/compare/v1.155.6..v1.156.0
 [1.156.1]: https://github.com/deltachat/deltachat-core-rust/compare/v1.156.0..v1.156.1
 [1.156.2]: https://github.com/deltachat/deltachat-core-rust/compare/v1.156.1..v1.156.2
+[1.156.3]: https://github.com/deltachat/deltachat-core-rust/compare/v1.156.2..v1.156.3
diff --git a/Cargo.lock b/Cargo.lock
index d25f08874..21f869c27 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1288,7 +1288,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat"
-version = "1.156.2"
+version = "1.156.3"
 dependencies = [
  "anyhow",
  "async-broadcast",
@@ -1390,7 +1390,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-jsonrpc"
-version = "1.156.2"
+version = "1.156.3"
 dependencies = [
  "anyhow",
  "async-channel 2.3.1",
@@ -1415,7 +1415,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-repl"
-version = "1.156.2"
+version = "1.156.3"
 dependencies = [
  "anyhow",
  "deltachat",
@@ -1431,7 +1431,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-rpc-server"
-version = "1.156.2"
+version = "1.156.3"
 dependencies = [
  "anyhow",
  "deltachat",
@@ -1460,7 +1460,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat_ffi"
-version = "1.156.2"
+version = "1.156.3"
 dependencies = [
  "anyhow",
  "deltachat",
diff --git a/Cargo.toml b/Cargo.toml
index 07b4ded78..b3e9c4ac2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat"
-version = "1.156.2"
+version = "1.156.3"
 edition = "2021"
 license = "MPL-2.0"
 rust-version = "1.81"
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index 260e718b4..1b31112c6 100644
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "1.156.2"
+version = "1.156.3"
 description = "Deltachat FFI"
 edition = "2018"
 readme = "README.md"
diff --git a/deltachat-jsonrpc/Cargo.toml b/deltachat-jsonrpc/Cargo.toml
index 0140e1c4e..715367421 100644
--- a/deltachat-jsonrpc/Cargo.toml
+++ b/deltachat-jsonrpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-jsonrpc"
-version = "1.156.2"
+version = "1.156.3"
 description = "DeltaChat JSON-RPC API"
 edition = "2021"
 default-run = "deltachat-jsonrpc-server"
diff --git a/deltachat-jsonrpc/typescript/package.json b/deltachat-jsonrpc/typescript/package.json
index e7807fa68..ad13148b1 100644
--- a/deltachat-jsonrpc/typescript/package.json
+++ b/deltachat-jsonrpc/typescript/package.json
@@ -58,5 +58,5 @@
   },
   "type": "module",
   "types": "dist/deltachat.d.ts",
-  "version": "1.156.2"
+  "version": "1.156.3"
 }
diff --git a/deltachat-repl/Cargo.toml b/deltachat-repl/Cargo.toml
index 2d3a4af0f..6edf72e68 100644
--- a/deltachat-repl/Cargo.toml
+++ b/deltachat-repl/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-repl"
-version = "1.156.2"
+version = "1.156.3"
 license = "MPL-2.0"
 edition = "2021"
 repository = "https://github.com/deltachat/deltachat-core-rust"
diff --git a/deltachat-rpc-client/pyproject.toml b/deltachat-rpc-client/pyproject.toml
index bd3ceb103..a426513bd 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 = "1.156.2"
+version = "1.156.3"
 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 9733a821c..769f39d5d 100644
--- a/deltachat-rpc-server/Cargo.toml
+++ b/deltachat-rpc-server/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-rpc-server"
-version = "1.156.2"
+version = "1.156.3"
 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 898ce8be5..c720d097d 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": "1.156.2"
+  "version": "1.156.3"
 }
diff --git a/python/pyproject.toml b/python/pyproject.toml
index ecf27751f..32e4cb5b9 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "deltachat"
-version = "1.156.2"
+version = "1.156.3"
 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 1891f3c7d..d8120a0c6 100644
--- a/release-date.in
+++ b/release-date.in
@@ -1 +1 @@
-2025-03-02
\ No newline at end of file
+2025-03-09
\ No newline at end of file