Square Payment Module for Zen Cart [Support Thread]

[DrByte]

Some new versions have just been released:

v1.2 - includes fixes for the refund and capture PHP errors, and adds an extra display field for custom text on checkout screen. Uses API 3.20200325.0

v1.3 - Updates to SquareConnect SDK version 3.20200528.1
(Note: This is the last release of SquareConnect SDK that is compatible with PHP 5. Future versions will require PHP 7.1+, and will be integrated to the SquarePHP SDK (not SquareConnect). A version 2 of this module will be released to work with the new SDK, but this will also limit which Zen Cart versions the module is compatible with. If you are not using Zen Cart 1.5.6 or newer and PHP 7.1 or newer, now is the time to upgrade!)
(this is a full upgrade of all files: see the changelog.md file for instructions)

v1.4 - simply adds display of the API / SDK versions in the admin sidebar so you can easily reference it for setting the API version in your Square account.
(this is just an update to the square.php payment module file)

v1.5 - Added improvements to catching errors that could occur during capture/void/refund.
(this is just an update to the square.php payment module file)