appveyor.yml in textbringer-0.2.6 vs appveyor.yml in textbringer-0.2.7

@@ -12,6 +12,7 @@
 deploy: off
 environment:
   UPLOAD_TO_CODECOV: 1
   SSL_CERT_FILE: C:\projects\textbringer\cacert.pem
   matrix:
+    - ruby_version: "23"
     - ruby_version: "23-x64"