Data injection in an established connection and filtering on the fly is also possible, keeping the connection synchronized.
Many sniffing modes were implemented to give you a powerful and complete sniffing suite. Plugins are supported. It has the ability to check whether you are in a switched LAN or not, and to use OS fingerprints (active or passive) to let you know the geometry of the LAN.
Many long standing bugs were fixed in this version: a resource depletion issue, buffer access out-of-bounds issues, DNS dissector not working on 64-bit systems, multiple buffer overflows, multiple memory leaks, multiple files with obsolete code, SEND L3 errors experienced by some users, and a compilation error under Mac OS X Lion. The build system was updated.