0.0.1 Initial Release. 0.0.2 Migrate to Android X. 0.0.3 Updated Documentation 1.0.0 Google Pay support 1.0.1 Fixed bug in Boolean value 1.0.2 Changed IOS code from Swift to Objective C 1.1.8 Added support for Sandbox 1.1.9 Updated documentation 1.2.3 Fix incompatibility with flutter's new version