Last week Adobe released 'Release Candidate' of Lightroom 3.4. The update covers 7 additional cameras including Canon's 600D/T3i and 1100D/T3, Olympus's XZ-1 and E-PL2, and Samsung's NX11, and also addresses a number of issues reported via customer feedback. The update is available from Adobe Labs site.
NOTE: Adobe uses the term 'Release Candidate' to denote software that is well tested but not yet the final version.
Download Adobe Photoshop Lightroom v3.4 Release Candidate
All my plug-ins should be compatible with the latest version of Lightroom, and most of them have been tested with v3.4 RC. However, if you experience any issues running plug-ins, please let me know immediately so I can fix them ASAP.