* Connection Pinning (for NTLM Auth Passthrough)
* Native IPv6
* Quality of Service (QoS) Flow support
* Native Memory Cache
* SSL Bump (for HTTPS Filtering and Adaptation)
* TProxy v4.1+ support
* eCAP Adaptation Module support
* Error Page Localization
* Follow X-Forwarded-For support
* X-Forwarded-For options extended (truncate, delete, transparent)
* Peer-Name ACL
* Reply headers to external ACL.
* ICAP and eCAP Logging
* ICAP Service Sets and Chains
* ICY (SHOUTcast) streaming protocol support
* HTTP/1.1 support on connections to web servers and peers.
(with plans to make this full support within the 3.1 series)
Changes to squid-3.1.1 (29 Mar 2010):
- Bug 2873: undefined symbol
- Bug 2827: assertion in authentication
- Remove ufsdump binary from default builds
- Remove pinger from default startups
- ... and several documentation updates.