Tegula program installers:

tegula_macos_0_1_8.dmg (MacOS X)
tegula_windows-x64_0_1_8.exe (Windows, 64-bit)
tegula_unix_0_1_8.sh (Linux or unix)

Tiling databases:

All tilings with Dress complexity ≤ 18 (unzip before use)
All euclidean tilings with Dress complexity ≤ 24 (unzip before use)
All spherical tilings with Dress complexity ≤ 24 (unzip before use)

To find out what has changed in recent versions, see the release notes.
Use this file to check MD5 checksums: md5sums.txt.