The only things STUI currently has that DUI lacks are the stamina bar and the map autobrightness mod, and I believe at least the latter can be achieved with ACE3. Lots and lots of customization options and new features While nothing stops you from continuing to use this version of STUI, I'd encourage you to look into DUI to see what it can offer for you. It also has loads of customization options (want the STHUD-esque image for your radar? It's there, labeled as 'Classic') and features along with CBA settings to permit a server to enforce given options for clients, if you're like us and want the whole server to be on a standard setup for consistency's sake. It's a really nicely done mod and as a result, there's no reason for us to keep supporting a mod that we no longer need and which has been made redundant by the customizations of DUI. Version 1.8.0 of DUI, released earlier today (Oct 12, 2020), now covers all the main aspects of STUI - the group radar, unit indicators, and name tags. Instead, focus has shifted within ShackTac to using diwako's DUI HUD, a spiritual successor of sorts to STUI that makes use of more A3-appropriate standards than STUI did, and one which offers the sorts of customization and features that people often asked for from STUI. While you can continue to use it if you so desire, it won't be receiving further updates. The short and sweet version is that a decade after STHUD was first released, the STUI suite is being discontinued.