-# Expected are: YYYYMMDD, YYYYMMDD.x, YYYYMMDD<suite>x
-if ! echo "$VERSION" | grep -Eq "^[0-9]{8}(|(\.|[a-z]+)[0-9]+)$"; then
+# Expected are: YYYYMMDD, YYYYMMDD.x, YYYYMMDD<suite>x, YYYYMMDD+<suite>x,
+# YYYYMMDD+debXuZ and the +b[0-9] on the end
+if ! echo "$VERSION" | grep -Eq "^[0-9]{8}((\.|\+?[a-z]+|\+deb[0-9]+u|\+kbsd[0-9]+u)[0-9]+)?(\+b[0-9])?$"; then