diff --git a/NEWS b/NEWS
index 6ea999b..e0f89d4 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,31 @@
+Overview of changes in GLib 2.56.3
+==================================
+
+* The documentation for G_GNUC_MALLOC has changed to be more restrictive to
+  avoid miscompilations; you should check whether any uses of it in your code
+  are appropriate
+* Fix cancellation of g_subprocess_communicate_async() calls
+
+* Bug fixes:
+ #1518 /network-monitor/create-in-thread fails in (LXC) containers on glib-2-56
+ #1461 GBookmarkFile: nullptr access in current_element
+ #1462 GBookmarkFile: heap-buffer-overflow in g_utf8_get_char
+ !278 Backport g_subprocess_communicate() cancellation fixes from !266 to glib-2-56
+ #1465 Many uses of G_GNUC_MALLOC are incorrect
+ #1472 Test for BROKEN_IP_MREQ_SOURCE_STRUCT is broken on Windows / Mingw
+ !259 Fix persistent CI failure on glib-2-56
+
+* Translation updates:
+ Brazilian Portuguese
+ Czech
+ German
+ Hungarian
+ Indonesian
+ Polish
+ Slovenian
+ Swedish
+
+
 Overview of changes in GLib 2.56.2
 ==================================
 
diff --git a/configure.ac b/configure.ac
index 04e9ca7..99f1ae2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,8 +31,8 @@
 
 m4_define([glib_major_version], [2])
 m4_define([glib_minor_version], [56])
-m4_define([glib_micro_version], [2])
-m4_define([glib_interface_age], [2])
+m4_define([glib_micro_version], [3])
+m4_define([glib_interface_age], [3])
 m4_define([glib_binary_age],
           [m4_eval(100 * glib_minor_version + glib_micro_version)])
 m4_define([glib_version],
diff --git a/meson.build b/meson.build
index de18f19..a28642e 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('glib', 'c', 'cpp',
-  version : '2.56.2',
+  version : '2.56.3',
   meson_version : '>= 0.44.0',
   default_options : [
     'warning_level=1',