The biggest change is that France and Paris maps are now included in the classic map window (6 August: And also in the ZwiftGPS window 🙂 )
Besides that there are important bug fixes regarding the network capture functionality.
The network capture functionality didn’t work in macOS in the previous version 2.1.5 which was uploaded end of June but not announced. This should be fixed now.
The fixes in 2.1.5 were primarily around network capture, ensuring that all chat log messages are captured.