diff --git a/mkclean/CMakeLists.txt b/mkclean/CMakeLists.txt
index 75b260dd..8acfda07 100644
--- a/mkclean/CMakeLists.txt
+++ b/mkclean/CMakeLists.txt
@@ -1,4 +1,4 @@
-project("mkclean" VERSION 0.8.1)
+project("mkclean" VERSION 0.9.0)
 
 add_executable("mkclean" mkclean.c)
 add_executable("mkWDclean" mkclean.c)
diff --git a/mkclean/ChangeLog.txt b/mkclean/ChangeLog.txt
index a31a0f49..45001d1e 100644
--- a/mkclean/ChangeLog.txt
+++ b/mkclean/ChangeLog.txt
@@ -1,3 +1,10 @@
+2021-01-31
+version 0.9.0:
+    - replace coremake meta-build project with CMake projects
+    - add support for new (audio/subtitle) track selection elements
+    - fix misc warnings with modern C compilers (Clang 11, MSVC 19)
+    - fix elements changes from the latest Matroska IETF spec
+
 2012-08-22
 version 0.8.10:
     - update the list of Matroska elements from the IETF CELLAR group work
@@ -5,7 +12,7 @@ version 0.8.10:
 
 2012-04-26
 version 0.8.9:
-    - add support for Opus and VP9 support
+    - add support for Opus and VP9
     - add support for colourspace elements
     - add support for 360°/VR elements
 
diff --git a/mkclean/ReadMe.txt b/mkclean/ReadMe.txt
index a05f2c12..d7ce5fa7 100644
--- a/mkclean/ReadMe.txt
+++ b/mkclean/ReadMe.txt
@@ -13,18 +13,12 @@ to the community if you think it can help. Contact: slhomme@matroska.org
 mkclean depends on libebml2 (BSD) and libmatroska2 (BSD) that themselves
 rely on Core-C (BSD) which adds an object API on top of the C language.
 
+mkclean can be built with minilzo support whic is GPL. In that case the
+license of the binary becomes GPL.
+
 ** BUILDING **
-To build mkclean you have to build coremake first:
-You can either run ./configure on Linux/OS X or
-- Just compile <root>/corec/tools/coremake/coremake.c with your C compiler.
-- run coremake from the root of the source :
-  * "coremake.exe vs9_win32" to generate the project files for Visual Studio 2008
-  * "coremake gcc_linux" to generate the project files for GNU make building with gcc
-  * "coremake gcc_linux_x64" for GNU make building with gcc on Linux 64 bits
-  * "coremake xcode_uni" to generate the project files for XCode for a universal OS X binary
-  * look in the coremake folder for all the platforms supported
-  
-The Makefile/mkclean.sln will end up in the mkclean folder. You just have to
-build from there and it will create mkclean(.exe) under <root>/release/
+To build mkclean you need CMake and a working C compiler.
+
+You just run "cmake ." to generate the makefiles and then "make".
 
-To delete all the project files run "coremake(.exe) clean" from the root of the sources.
+On Windows a Visual Studio project may be created instead.
diff --git a/mkclean/src.br.in b/mkclean/src.br.in
index 68d495cf..618ca4aa 100644
--- a/mkclean/src.br.in
+++ b/mkclean/src.br.in
@@ -14,7 +14,6 @@ CMakeLists.txt @PROJECT_NAME@-@PROJECT_VERSION@/CMakeLists.txt
 @PROJECT_SOURCE_DIR@/ChangeLog.txt @PROJECT_NAME@-@PROJECT_VERSION@/ChangeLog.txt
 @PROJECT_SOURCE_DIR@/ReadMe.txt @PROJECT_NAME@-@PROJECT_VERSION@/ReadMe.txt
 @PROJECT_SOURCE_DIR@/@PROJECT_NAME@-@PROJECT_VERSION@ -
-@PROJECT_SOURCE_DIR@/../libmatroska2/minilzo -
 
 
 *.br -