Lightroom 4.1 has full raw support for the recently released Canon EOS 650D / Rebel T4i. If you are currently on Lightroom 4.1, there’s no further action required, it’ll just work with your new T4i.
If you are currently using Lightroom 4, we’ve included some pretty great functionality such as processing and tone-mapping 32bit HDR TIFF files and color fringing tools to help reduce chromatic aberration.
Download Lightroom 4.1 here – Windows , Mac