PS 11.8.1 has been released on the Symantec Support download site. Once logged in with your MySymantec credentials, you can download the image and release notes from the PacketShaper S-Series download page.
PS 11.8.1 contains the following new features:
Captive Portal — PacketShaper's captive portal feature allows enterprises and service providers to present an Acceptable Use Policy (AUP) to guest users accessing the Internet in a web browser on a WiFi network.
Enhanced BitTorrent classification — The BitTorrent classification engine has algorithms that allows for mid-stream flows to be classified.
In addition, a number of bugs have been fixed, including all bugs fixed in PS 184.108.40.206, 220.127.116.11, and previous versions.