diff --git a/yocto-poky/meta/classes/upstream-version-is-even.bbclass b/yocto-poky/meta/classes/upstream-version-is-even.bbclass
new file mode 100644
index 0000000..89556ed
--- /dev/null
+++ b/yocto-poky/meta/classes/upstream-version-is-even.bbclass
@@ -0,0 +1,5 @@
+# This class ensures that the upstream version check only
+# accepts even minor versions (i.e. 3.0.x, 3.2.x, 3.4.x, etc.)
+# This scheme is used by Gnome and a number of other projects
+# to signify stable releases vs development releases.
+UPSTREAM_CHECK_REGEX = "(?P<pver>\d+\.(\d*[02468])+(\.\d+)+)"