I am a paying customer and wish to remain one. But Proton Bridge for Proton Mail is currently only for Big Sur and above, and I am using an older version, v. 3.0.21 of Bridge. I get a message to update it but I am scared to because I have zero idea if it will download the last supported version for my system or else the newest thing which is (supposedly) not supported. Bridge is working for me and I do not want to break it. And I have no idea which version is okay for my Mac and where to download it from. I have Catalina and my Mac can't use a newer OS (without hacking). This is a common situation for Mac users!! (Far less common for Windows or Linux.) My Mac works perfectly and I do not intend to buy a new machine at least for a few years. Please at least list the latest version that supported my OS and let me download that version. The good software companies are nice and do this. They don't support solely their wealthiest customers who upgrade machines frequently. Surely you do not expect perfectly working machines to be tossed in the trash bin. I am a student and have practical reasons for using MacOS as my main system. Thank you!