Stashing changes is very similar to shelving. The only difference is in the way patches are generated and applied. Stashes are generated by Git, and can be applied from within IntelliJ IDEA, or outside it. Patches with shelved changes are generated by IntelliJ IDEA and are also applied through the IDE. Also, stashing involves all uncommitted changes, while when you put changes to a shelf, you can select some of the local changes instead of shelving them all.