The next big step was the advancement of Warp technology into Jump drives. The first version only allowed very short jumps within the same solar system, but later versions allowed ships to jump between systems without the aid of a Jump gate. This sped up expansion considerably, and in short time humans had established settlements in hundreds of systems, including dozens of fledged colonies. By then, however, the expansion process was becoming increasingly difficult due to stifling bureaucracy. Almost every solar system within jump range had already been bought or leased long before actual colonization began, and many of those wishing to settle in a new world had to wait years to fulfill their dreams.