Special maintenance release: this is the last build that supports Windows XP, Windows Vista and Windows 7 RTM (no service pack). These Windows versions only support SHA-1 for code-signing certificates. Microsoft decided to require SHA-2 for new drivers while it did not release SHA-2 support for these Windows versions. So, in other words, we cannot release new kernel-mode drivers (with new functionality) for these older operating systems. If you run one of these old Windows versions we urge you to upgrade. On these Windows versions, HitmanPro.Alert will no longer update itself after this build.Both 32-bit and 64-bit versions of Microsoft Windows 7 SP1, Windows 8, Windows 8.1 and Windows 10 remain supported and will soon receive a new HitmanPro.Alert version with new features.