Current Version: Snit V0.97.1 (for Tcl/Tk 8.3.4)
Snit is written and maintained under Tcl/Tk 8.4. However, for legacy customer-support reasons I am constrained to using Tcl/Tk 8.3. I have implemented a back-port of Snit to Tcl/Tk 8.3.4 which passes 100% of the Snit regression test suite. We are using it extensively (including types, widgets and widgetadaptors based on BWidget 1.4) with great success.
If you want to explore Snit but are similarly constrained, feel free to contact me ('[email protected]') and I will send you a zip file with the back-port.