The following paragraphs detail the feature history for Zed through each of the numbered versions used to checkpoint its development. Most of these numbered versions were used only as internal checkpoints, although several were shared with development partners and testers as they were completed.

While an effort has been made to restrict the items listed to those features that are visible at the user level, many other significant development milestones of an internal nature are also included. Links to other sections of the documentation providing more detail about the items listed are provided where appropriate.