At least with software you can rollback, not exactly something that works with hardware. A year may seem like a long time, but to test all the ramifications of

At least with software you can rollback, not exactly something that works with hardware. A year may seem like a long time, but to test all the ramifications of something that sounds simple like a higher resolution camera is not an easy problem. As the dpreview article highlights, a change in resolution affects multiple subsystems.