Tornevall Networks was running on TornevallWEB v3 for a long time, but due to bad coding TornevallWEB v4 came up in our minds. This project failed after power-hardware-failure in December 2015 and now we're aiming at TornevallWEB v5 instead.
The goal with v4 was to rewrite of the current base of v4. Now, we realize that this failed. A bunch of older flaws in our AJAX-fetcher was however fixed and removed, so the AJAX engine would probably survive the switch.