Now, when creating new keyframes in the graph editor by ctrl-clicking, only the newly created keyframes will be selected. This is a little workflow tweak to make it faster to work, as you no longer have to deselect all, and then re-select the newly added keys in order to manipulate them. The old behaviour (not modifying the selection status of the old keys) has been kept, but is now available via Shift-Ctrl-Click. Feature request from @Shhlife