This has been available since the middle of June click here. I am running Beta v.2.10.17 as this rectified a problem with my WLAN disconnecting every few hours. I am having no problems with this version.
Quote re: version v.2.10.22 "The main changes seem to be to the ADSL2 compatability and VPN client support and ratification. Unless you use ADSL2 or VPN, I would advise not to upgrade, unless you are having problems"