v2.2.1

What's Changed

• Add Arabic language support by @MohamedAshref371 in #492 & #493
• Use unsigned instead of signed byte type for keys in #500
• Option to set custom qos parameter in #505
• Settings/Custom keys import and export in #509
• Update barcode scanner library version
• Multiple bug fixes

New Contributors

• @MohamedAshref371 made their first contribution in #492

Full Changelog: v2.2.0...v2.2.1