diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ee827079..240a8b38a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog 
 
+## 1.40.0
+
+- introduce ephemeral messages #1540 #1680 #1683 #1684 #1691 #1692
+
+- `DC_MSG_ID_DAYMARKER` gets timestamp attached #1677 #1685
+
+- improve idle #1690 #1688
+
+- fix message processing issues by sequential processing #1694
+
+- refactorings #1670 #1673
+
+
 ## 1.39.0
 
 - fix handling of `mvbox_watch`, `sentbox_watch`, `inbox_watch` #1654 #1658
diff --git a/Cargo.lock b/Cargo.lock
index 62cae75be..46b480cde 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -822,7 +822,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat"
-version = "1.39.0"
+version = "1.40.0"
 dependencies = [
  "ansi_term 0.12.1",
  "anyhow",
@@ -894,7 +894,7 @@ dependencies = [
 
 [[package]]
 name = "deltachat_ffi"
-version = "1.39.0"
+version = "1.40.0"
 dependencies = [
  "anyhow",
  "async-std",
diff --git a/Cargo.toml b/Cargo.toml
index a37992db4..2b7fe7b1c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat"
-version = "1.39.0"
+version = "1.40.0"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"
 license = "MPL-2.0"
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index d4f6c7424..3a2c14402 100644
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "deltachat_ffi"
-version = "1.39.0"
+version = "1.40.0"
 description = "Deltachat FFI"
 authors = ["Delta Chat Developers (ML) <delta@codespeak.net>"]
 edition = "2018"