Bottles is a thoroughly great application for managing Windows applications and games on Linux. It's fast moving and a new release is out with their new default runner called Soda, which is based on Valve's fork of Wine and Proton patches.
The problem was their previous runner called Caffe was based directly on Wine and moved with its updates. Given how often Wine updates, it introduced plenty of regressions so this is their attempt to provide a more stable experience. Soda actually takes Valve's Wine fork, Proton patches and updates from TKG and GE too. So it's a big mixture of things that should hopefully make running games with Bottles easier. As for the name Soda, they say "we think it will be a sparkling experience".
A new experimental feature added with this release is sandboxing per-Bottle. The idea is to restrict the environment and hopefully be more secure and stable with it using flatpak-spawn when Bottles is installed as Flatpak and bubblewrap for all other formats.
There's also a new UI for installers that looks a lot cleaner and clearer:
You also get a nice status bar along with info on what it's actually doing when setting up these apps.
More integrations have arrived with support for the Ubisoft Connect launcher. If you turn it on, it will list games you have installed directly in the Bottles application. They also worked to continue to improve the Library view, performance improvements, various fixes, improvements to the Epic Store integration which they say can now use "using Cloud Sync and Anti cheat", improved translations and so on.