• Application now uses Linux APIs directly instead of running the external commands to configure OS networking stack.
• Switched to GTK 4.10, requiring Linux distros from 2023 and later.
• Flipped the no-keychain parameter to be keychain so that keychain usage is opt-in instead of opt-out.
• Added allow-forwarding option to enable packet forwarding for the tunnel interface. Forwarding is disabled by default.