We've been very conservative with changing minimum system version requirements for both macOS and Windows platforms. Recent release of our primary development language for both platforms required us to update minimum system requirements.

• MacOS minimum supported version has changed from 10.10 to 10.11 El Capitan (64-bit only).
• Windows is unchanged and we're still targeting Windows 7 (32-bit and 64-bit).

According to StatCounter Global Stats data, El Capitan has 9.3% global market share followed by Yosemite with roughly 6%.