diff --git a/NEWS b/NEWS
index 61334bff2..de77626cf 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,32 @@
+Overview of changes in GLib 2.43.91
+===================================
+
+We have now added 'g_autofree' as a libgsystem-style autocleanup macro
+that calls g_free() on the content of a local variable when it leaves
+scope (working only on GCC and clang).
+
+GApplication now has an "is-busy" property, allowing one to query the
+effective busy state.
+
+There have been various other bugfixes and cleanups.
+
+Bugs fixed:
+ 661554 GIO's use of GError is wrong
+ 744263 Fix format specifier for __LINE__ in G_OBJECT_WARN_INVALID_PSPEC
+ 744565 gapplication: add bind_busy_property()
+ 744747 Add g_autofree
+ 744756 Can't find out if gapplication is marked as busy
+ 744830 autocleanups: Add GArray and GPtrArray
+ 744876 Unclean exit from from g_application_run
+ 745239 g_property_action_new missing type annotation
+
+Translations updated:
+ Chinese (Taiwan)
+ French
+ Galician
+ Lithuanian
+ Slovak
+
 Overview of changes in GLib 2.43.90
 ===================================
 
diff --git a/configure.ac b/configure.ac
index f13a493aa..b13cfb912 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,7 +31,7 @@ m4_define(glib_configure_ac)
 
 m4_define([glib_major_version], [2])
 m4_define([glib_minor_version], [43])
-m4_define([glib_micro_version], [90])
+m4_define([glib_micro_version], [91])
 m4_define([glib_interface_age], [0])
 m4_define([glib_binary_age],
           [m4_eval(100 * glib_minor_version + glib_micro_version)])