Little-known anti-malware programs display warnings, which are often identified as false positive. Nevertheless, it is recommended to recheck the file with your antivirus software after downloading.
We do not have a download file for the latest version (0.10.1.291), but you can try downloading it from the developer's site
Download version 0.5 from Mac Informer
Version: 0.5
File name: tilemill-0.5.1.zip
Size: 51.8 MB
