[gtk] Post-release version bump

[Matthias Clasen <matthiasc src gnome org>]

commit 4257e1ce4f0d3a18e8bc32cd29b049b56a02ec6e
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Sep 28 13:19:49 2022 -0400

    Post-release version bump
    
    This is an experiment to see if I can keep up with
    doing post-release version bumps, so git snapshots
    will always have a different version from released
    tarballs.
    
    This commit also marks the beginning of the 4.10
    development cycle, as 4.8 has been branched.

 NEWS        | 4 ++++
 meson.build | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index fa73963a7c..6471d67da7 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,7 @@
+Overview of Changes in 4.9.1, dd-mm-yyyy
+========================================
+
+
 Overview of Changes in 4.8.1, 16-09-2022
 ========================================
 
diff --git a/meson.build b/meson.build
index 23e932334c..494c81ac93 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gtk', 'c',
-        version: '4.8.1',
+        version: '4.9.1',
         default_options: [
           'buildtype=debugoptimized',
           'warning_level=1',