iXu last update was version 2.4 (beta), dating back September 2010.
Even though still tagged as Beta release, iXu has been used extensively without problem reports; so it can be considered stable.
It was tested on Windows XP and Windows 10 (64 bits). So it should work on all MS Windows versions capable of running Inform7!
Pre-built 32bits binaries are available (just unzip and execute, single exe standalone + PDF userguide — keep them inside their own folder since iXu will create some files and folders during execution).