Draft.

Author: mirage335

.github/workflows/check.yml

@@ -34,6 +34,7 @@ on:
         type: choice
         options:
         - latest
+        - 6.6.
         - 6.5.
         - 6.5.4
         - 6.4.
@@ -45,6 +46,7 @@ on:
         options:
         - latest
         - 6.1.
+        - 6.6.
       skimfast:
         type: boolean
         default: true