diff --git a/Cargo.lock b/Cargo.lock
index 8f3f08af2..3e7a6038c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1350,7 +1350,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat"
-version = "2.55.0"
+version = "2.56.0-dev"
 dependencies = [
  "anyhow",
  "astral-tokio-tar",
@@ -1459,7 +1459,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-jsonrpc"
-version = "2.55.0"
+version = "2.56.0-dev"
 dependencies = [
  "anyhow",
  "async-channel 2.5.0",
@@ -1480,7 +1480,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-repl"
-version = "2.55.0"
+version = "2.56.0-dev"
 dependencies = [
  "anyhow",
  "deltachat",
@@ -1496,7 +1496,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat-rpc-server"
-version = "2.55.0"
+version = "2.56.0-dev"
 dependencies = [
  "anyhow",
  "deltachat",
@@ -1525,7 +1525,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat_ffi"
-version = "2.55.0"
+version = "2.56.0-dev"
 dependencies = [
  "anyhow",
  "deltachat",
diff --git a/Cargo.toml b/Cargo.toml
index 6f5f2bd90..0ff27f9b2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat"
-version = "2.55.0"
+version = "2.56.0-dev"
 edition = "2024"
 license = "MPL-2.0"
 rust-version = "1.89"
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index 7130c81e5..dee712109 100644
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "2.55.0"
+version = "2.56.0-dev"
 description = "Deltachat FFI"
 edition = "2018"
 readme = "README.md"
diff --git a/deltachat-jsonrpc/Cargo.toml b/deltachat-jsonrpc/Cargo.toml
index cf38e2d2f..f279fb9f9 100644
--- a/deltachat-jsonrpc/Cargo.toml
+++ b/deltachat-jsonrpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-jsonrpc"
-version = "2.55.0"
+version = "2.56.0-dev"
 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 e481239e8..e7f1b108f 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": "2.55.0"
+  "version": "2.56.0-dev"
 }
diff --git a/deltachat-repl/Cargo.toml b/deltachat-repl/Cargo.toml
index 9894571c6..3432c578e 100644
--- a/deltachat-repl/Cargo.toml
+++ b/deltachat-repl/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-repl"
-version = "2.55.0"
+version = "2.56.0-dev"
 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 64c9ed9ac..6af7dd0db 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 = "2.55.0"
+version = "2.56.0-dev"
 license = "MPL-2.0"
 description = "Python client for Delta Chat core JSON-RPC interface"
 classifiers = [
diff --git a/deltachat-rpc-server/Cargo.toml b/deltachat-rpc-server/Cargo.toml
index 861054f48..edeb34c58 100644
--- a/deltachat-rpc-server/Cargo.toml
+++ b/deltachat-rpc-server/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat-rpc-server"
-version = "2.55.0"
+version = "2.56.0-dev"
 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 5affafc95..a66aaac0f 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": "2.55.0"
+  "version": "2.56.0-dev"
 }
diff --git a/python/pyproject.toml b/python/pyproject.toml
index 27ada4e14..d5d93c1f3 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "deltachat"
-version = "2.55.0"
+version = "2.56.0-dev"
 license = "MPL-2.0"
 description = "Python bindings for the Delta Chat Core library using CFFI against the Rust-implemented libdeltachat"
 readme = "README.rst"
diff --git a/release-date.in b/release-date.in
index 34241cd4e..8bc5aeb37 100644
--- a/release-date.in
+++ b/release-date.in
@@ -1 +1 @@
-2026-07-20
\ No newline at end of file
+2026-07-21
\ No newline at end of file