v3.9.0

Release v3.9.0

v3.8.0

 Update README.md, add CHANGELOG.md

v3.1.1

Exchange namespace

v3.1.0

Redirect QR-Code

v3.0.6

Transaction API v3.0/JSON API

2.5.4

Update Register.php - returning instance after using the setter

2.5.3

add sdk info data

2.5.2

Update Client.php

add transaction indicator

add transaction indicator CARDONFILE_MERCHANT

v1.1

Update Preauthorize.php