Both versions (remote and basic) of Parsley have been merged. There is now a single version that is remote & promise aware, and it is lighter than both of the 2.1.x versions.
2.2.0 version should be compatible with 2.1.x except that you need to include es5-shim if you need compatibility with IE8.
Please check the console for deprecation notices and adapt your code accordingly.
Note that type="number" now follows HTML5 spec. In particular, commas are no longer accepted. (#1037)
Parsley's source is now in EcmaScript 6.
The i18n folder is now part of the dist folder.