This new version for Linux is based on the Windows application code and can be run using Wine. You can get the legacy version, based on Mono, from here.
You can connect your devices via Internet without using external servers.
DDNS-like service to share your Internet IP and port with trusted devices without using third party services.
New section "Connection" in the settings.
Adapted "Trusted" device settings page to include parameters for "Direct Internet Connection".
Dark themes have been added.
You can renew the encryption keys. Go to a "Trusted" device settings, scroll down and click the "Renew encryption keys" button (when available).
You can add a remote device, which is not on the local network, via the Internet.
Remotely control a device.
You can manage the files of a remote device. Currently you can:
Delete remote files/folders.
Rename a remote file/folder.
Create a remote folder.
Download files/folders from the remote device and select the local folder where they will be saved.
Upload files/folders to the remote device and select the remote folder where they will be saved.
View remote files as a list, grid or with preview.
New setting to enable remote file management on the "Trusted" device settings page.
New setting for "Trusted" devices to be defined as "default". When a "default" device is the only "Trusted" device online, text and files are sent directly to it without going through the device selection screen.
New setting to override the functionality of the "default" device.
You can "pin" P2P messages so that they are not deleted when deleting messages by type.
You can filter "MESSAGES" by type, text and pinned.
You can filter "SMS" by text.
You can use "Shift + Enter" when writing a message to go to the next line instead of sending the message.
New icon in the contact list to start writing an SMS to the selected contact.
Minimizes data update request (currently SMS and contacts) when a remote device is online and is not a local device.
You can still manually request a complete update of the data.
You can reply to a P2P message directly from the notification.
You can see the queue of files being sent by selecting the corresponding item from the lateral menu.
New setting to preserve the date of an incoming file.
All clickable items will be highlighted on mouseover.
Some of the above features are only available in the "premium" version or have limitations in the free version