ProtonMail Bridge is being updated with a completely redesigned user interface for ease of use. It gradually rolls out to paid users starting today.
This new version of ProtonMail Bridge is packed with fixes and improvements, but the main change is the new local cache, which now includes full message bodies. This means ProtonMail Bridge stores messages encrypted on your device, so they can be retrieved much faster than when stored remotely on our servers. You can control your cache using the Advanced settings.