D-RATS 0.3.1 release contains the following high-level changes over 0.3.0:

• Lots of automatic message routing features and logic updates
• Preliminary DVDongle support
• Packet-aware proxy updates
• Randomly-variable transmission delay
• Improved socket performance to make IP->Proxy->RF operation
• Support for defining the local station's DPRS information for remote access
• TNC performance fixes
• A large number of bug fixes
• Improved MacOS packaging
• See below for a full list of changes

Detailed list of changes

• Fix file transfer session refusing to give up on a peer that disappears

• Fix the chat Send button size for MacOS users
  

• Fix Broadcast Text File function to use currently-selected chat port
  

• Fix up the message reply function
  

• Fix the email settings to hide passwords in the config dialog
  

• Fix Email->Form conversion to concatenate all text/plain parts is used instead
  

• Fix rendering some special characters in the message list
  

• Fix forcing email addresses to uppercase
  

• Fix sending warmup if the timeout is zero
  

• Fix the socket data consumption algorithm to better tolerate slow data streams arriving over fast sockets
  

• Fix losing static overlays
  

• Fix D*Query to use the currently-selected chat port
  

• Fix repeater ID list growing without bound
  

• Fix Map->Broadcast Location function
  

• Fix DPRS button in GPS QST editor
  

• Fix DPRS message detection when checksum is a single digit
  

• Fix repeater path list growing without bound
  

• Fix repopulating the stations list after a clear
  

• Fix killing the message routing thread when there is no route for a station
  

• Fix a TNC bug that was causing an IO error on some blocks on Windows with the TNX-C
  

• Fix editing TNC radio ports
  

• Fix a couple of incoming-email-related crashes
  

• Fix allowing the user to click Upload or Connect in Files tab when no callsign is selected
  

• Make proxy application work on packets instead of the raw data stream
  

• Remove duplicated to/from fields in the email form, since routing info
  

• Change "Send" to "Forward" in the messages toolbar to clarify what you're doing when you manually send something somewhere
  

• Add a form logo path configuration element and make the form logo file relative to that
  

• Add a list of available logo files to the logo path edit box
  

• Add DVDongle support (preliminary, there are still issues with this)
  

• Add capability to specify a negative transmission delay that selects between 0.5 and abs(X) on each transmission
  

• Add a Default GPS Message configuration element that controls what is returned during a remote position request
  

• Add port name to chat status notification
  

• Add a fabricated subject for forms that don't have a subject field
  

• Add suggestion of the destination station on a form send
  

• Add email functionality to the message router so that they automatically get handled there
  

• Add http proxy function for fetching map images
  

• Add locking to prevent opening a message while it's being transferred and to prevent it from being transferred while it's being edited
  

• Add a method to launch the proxy application from the File->Tools menu
  

• Add image detection and the image tool to the "Send file" function in the stations list