diff --git a/README.md b/README.md
index a4ef43c77..29122263b 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ installed, `make doxygen-pdf` will produce a PDF version of the
 document.
 
 An online copy of this API version's documentation can be found here:
-https://ericsson.github.io/xcm/api/0.23/
+https://ericsson.github.io/xcm/api/0.24/
 
 ## Building
 
diff --git a/configure.ac b/configure.ac
index 17c3e7d11..79fe8bda7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
  -*- Autoconf -*-
 
 m4_define([xcm_major_version], [1])
-m4_define([xcm_minor_version], [8])
+m4_define([xcm_minor_version], [9])
 m4_define([xcm_patch_version], [0])
 m4_define([xcm_version],[xcm_major_version.xcm_minor_version.xcm_patch_version])
 
@@ -9,7 +9,7 @@ m4_define([xcm_version],[xcm_major_version.xcm_minor_version.xcm_patch_version])
 # release, even before version 1.0.0.
 m4_define([xcm_abi_major_version], [m4_eval(xcm_major_version - 1)])
 # step xcm_minor_version if this is increased
-m4_define([xcm_abi_minor_version], 23)
+m4_define([xcm_abi_minor_version], 24)
 m4_define([xcm_abi_version],[xcm_abi_major_version.xcm_abi_minor_version])
 
 AC_INIT(xcm, [xcm_version], [mattias.ronnblom@ericsson.com])
diff --git a/include/xcm.h b/include/xcm.h
index 170ce26a4..c9e352a5d 100644
--- a/include/xcm.h
+++ b/include/xcm.h
@@ -26,8 +26,8 @@ extern "C" {
  * * Obsolete, but still available, functions: xcm_compat.h.
  *
  * @author Mattias Rönnblom
- * @version 0.23 [API]
- * @version 1.8.0 [Implementation]
+ * @version 0.24 [API]
+ * @version 1.9.0 [Implementation]
  *
  * The low API/ABI version number is a result of all XCM releases
  * being backward compatible, and thus left the major version at 0.