19th of June 2018 saw the beta release of what was the source of rumors and small leaks for months, the Panorama UI for Counter Strike Global Offensive. The Panorama UI will be replacing a very old styled and clunky menu, inventory, buy menu and scoreboard in CSGO. Whilst not in the official branch of CSGO you can access it by opting into a beta version (instructions here).
The Panorama UI changes a lot! It really brings CSGO back up as a modern and sleek-looking game. It makes it seem like a whole new game and not the CSGO that was released in 2012. The CSGO UI has been a downfall for this great first person shooter and now that its be overhauled the game has been given a longer lifespan.
Here are some screenshots of the new Panorama UI thanks to Reddit user Shubbler: