diff --git a/COPYRIGHT b/COPYRIGHT
index 8af0ce071..d01b4e3df 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -1,12 +1,11 @@
-klayout is packaged by Peter C.S. Scholtens <peter.scholtens@xs4all.nl>
-and Matthias Köfferlein <matthias@koefferlein.de>
+klayout is packaged by Matthias Köfferlein <matthias@koefferlein.de>
 and was obtained from https://www.klayout.org/downloads/source/klayout-%VERSION%.tar.gz
 
 Authors:
 	Matthias Köfferlein
 
 Copyright:
-	Copyright (C) 2006-2022 by Matthias Köfferlein.
+	Copyright (C) 2006-2025 by Matthias Köfferlein.
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
diff --git a/Changelog b/Changelog
index 6bfd1f1b2..41d3e9a7c 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,22 @@
+0.29.12          (2025-03-02):
+* Bug: %GITHUB%/issues/1976 Crash on cross mode, lw > 1 and oversampling
+* Bug: %GITHUB%/issues/1987 Build failure against Qt6.8
+* Enhancement: %GITHUB%/issues/1989 API enhancements: several new split_... methods
+  on Edges, Region, EdgePairs and Texts, delivering a pair of containers with 
+  selected and unselected objects.
+* Bugfix: 'Save All' was not updating the dirty flag in the inactive tabs
+* Bugfix: Fixing a crash when editing PCell parameters while the macro editor is open
+* Bugfix: Fixed a potential Crash on "save all"
+* Bugfix: Fixed a bug when returning a Region into a layout with cells unselected
+* Bugfix: Tab title were not updated on cell rename
+* Bugfix: Fixed a crash on certain layout queries
+  - For example "instances of cell .*.* where inst.trans.rot == 2" was crashing
+* Bugfix: Fixing two problems with layer mapping
+  - Mapping "[*/*] 100/0:0/0" (for example) created 0/0 two times when the input contains 100/0 and 0/0. Now
+    it is a single layer only
+  - The mapping table generated from strings now uses layer indexes from a range that should not collide
+    with existing layer indexes.
+
 0.29.11          (2025-01-17):
 * Bug: %GITHUB%/issues/1948 Crash by instantiate a Cell in a Library-Cell 
 * Bug: %GITHUB%/issues/1953 Callback_impl & coerce_parameters_impl parameter display issue
diff --git a/Changelog.Debian b/Changelog.Debian
index dd2ebb144..85f58621a 100644
--- a/Changelog.Debian
+++ b/Changelog.Debian
@@ -1,3 +1,10 @@
+klayout (0.29.12-1) unstable; urgency=low
+
+  * New features and bugfixes
+    - See changelog
+
+ -- Matthias Köfferlein <matthias@koefferlein.de>  Sun, 02 Mar 2025 21:16:41 +0100
+
 klayout (0.29.11-1) unstable; urgency=low
 
   * New features and bugfixes
diff --git a/version.sh b/version.sh
index 48d9e093d..bfa5bd2dd 100644
--- a/version.sh
+++ b/version.sh
@@ -2,10 +2,10 @@
 # This script is sourced to define the main version parameters
 
 # The main version
-KLAYOUT_VERSION="0.29.11"
+KLAYOUT_VERSION="0.29.12"
 
 # The version used for PyPI (don't use variables here!)
-KLAYOUT_PYPI_VERSION="0.29.11"
+KLAYOUT_PYPI_VERSION="0.29.12"
 
 # The build date
 KLAYOUT_VERSION_DATE=$(date "+%Y-%m-%d")