We are currently running version 13.x in our Production i2600 boxes .For enabling TLS 1.3 which version is best suited. On ihealth evaluation it is showing 220.127.116.11 (latest release) but since we cant upgrade to version 16.x directly what is the best version on which we can upgarde in this scenario . Thanks .
Its all depend on the existing configuration compatibility. you can't jump 13.x to 16.x directly as it will return lot of error. Recommnded is to update to Non-prod LB then move to prod F5 LB. 15.x should be next Jump(my view)