!) fixed a service security issue, home user with default config not affected, but we recommend the upgrade for all users regardless;

asplain                 | comment
         0              | reserved RFC7607
         1 –      23455 | global
     23456              | reserved AS_TRANS
     23457 –      64495 | global
     64496 –      64511 | Reserved RFC5398
     64512 –      65534 | Reserved for Private Use RFC6996
     65535              | Reserved RFC7300
     65536 –      65551 | Reserved for use in documentation and sample code RFC5398
     65552 –     131071 | Reserved    
    131072 – 4199999999 | global    
4200000000 – 4294967294 | Reserved for Private Use RFC6996
             4294967295 | Reserved RFC7300

asdot                     | comment
          0               | Reserved RFC7607
          1 –       23455 | global
      23456               | Reserved AS_TRANS
      23457 –       64495 | global
      64496 –       64511 | Reserved RFC5398
      64512 –       65534 | Reserved for Private Use RFC6996
      65535               | Reserved RFC7300
    1.0     –     1.15    | Reserved for use in documentation and sample code RFC5398
    1.16    –     1.65535 | Reserved    
    2.0     – 64086.59903 | global    
64086.59904 – 65535.65534 | Reserved for Private Use RFC6996
              65535.65535 | Reserved RFC7300

This is an important security update. Most configurations are not at risk, but upgrading is highly recommended. To give time to update your systems, we are not currently publishing detailed information.

*) btest - improve stability;
*) console - improve stability;
*) fetch - improve stability of the TFTP client;
*) snmp - improve stability of SNMP;
*) snmp - properly validate password length when applying configuration;
*) ssh - refactor SSH internal processes and improved system stability;
*) system - improve stability;
*) system - updated certificate for Windows executable signing;
*) dhcp - improve stability of DHCP handling;
*) disk - improve stability of the SMB server;
*) ipsec - improve IKE handshake stability;
*) tunnel - fixed stability issue caused by a misconfigured routing loop under bridge (introduced in v7.22);
*) webfig - improve stability;
*) www - improve stability;