...
Sandbox Environment for Testing: POS Sandbox 7.7.0 & AC Sandbox 7.7.0
*Please Note: If you accept POS Sandbox App Version 7.7.0 is now in the catalog for testing, you will temporarily remove . POS Sandbox 8.0.0 from your catalog, and it will return on Tuesday, May 15th (Release Day). (If you already have 8.0.0 downloaded on an iPad, you can continue using it with sand7.)
...
Bug Fixes
POS: Added support for Zebra printer ZQ320 - Zebra Technologies is phasing out the IMZ receipt printer. The current generation is the Zebra ZQ320, which is now supported with this release.
...