Canon has posted firmware updates for the EOS-1D Mark II N and EOS 5D.
Both updates improve the brightness of the LCD monitor and fix mistakes in the language menus. Version 1.02 for the EOS-1D Mark II N also fixes a file numbering error that occurred during bulb shooting. The 5D had a problem with the creation of large files (1.7GB) and operational abnormality in AEB shooting, which has now been fixed by firmware version 1.03.
Canon EOS-1D Mark II N firmware version 1.02
Canon EOS 5D firmware version 1.03