Connect an older router to a plant's OpenVPN

When you set up or edit a plant's OpenVPN connection, you can now pick a "Compatibility preset" — "Modern (2.5+)", "Legacy 2.3 era" or "Legacy 2.2 (Blowfish)" — so a router that cannot speak modern OpenVPN connects too.

• Uploading an .ovpn file pre-fills the values it contains, each marked "from file".
• The connection's card lists the cipher, HMAC digest and minimum TLS version the connecting side must match.
• In "Show advanced options" you set each value yourself, including compression, MTU clamp and re-key interval.
• After changing these values you must rotate every connecting site's certificate and hand out the new file.