Update — Only.zip

It saves bandwidth by only including new or changed code.

Sometimes, old software is found on archive sites as a .zip that won't run because it is literally "Update Only." The story involves the community hunting for the original base files from the 90s or early 2000s to make the update usable again. Update Only.zip

While "Update Only.zip" is a generic file name, it is most frequently associated with the following "long stories" in specific communities: It saves bandwidth by only including new or changed code

It allows users with an existing installation to quickly "patch" their version to the latest build. Update Only.zip