Lightroom 4.2 and Camera Raw 7.2 RCs can be downloaded at Adobe Labs. Various bug fixes and support for the following Canon cameras: Rebel T4i/650D and EOS M. Moreover, Camera Raw now has lens profiles for the following lenses with Canon mount:

• Canon EF 24mm f/2.8 IS USM
• Canon EF 28mm f/2.8 IS USM
• Canon EF 40mm f/2.8 STM
• Canon EF-S 18-135mm f/3.5-5.6 IS STM
• Sigma 18-250mm f/3.5-5.6 DC OS HSM
• Zeiss Distagon T* 2/25 ZE
• Zeiss Distagon T* 1,4/35 ZE