README.md in thor-scmversion-0.2.3 vs README.md in thor-scmversion-0.2.4

@@ -90,9 +90,12 @@
 `thor version:bump auto` it will see if any major or minor level changes
 are included since the last tag, and use the appropriate version. This works
 especially well with a CI server, allowing you to never have to directly
 manage versions at all.
 
+NOTE: auto bumping currently only works for Git repos. For Perforce repos,
+auto is the same as patch.
+
 
 ## Contributing
 
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)