Under Releases are all future releases of Apache OpenOffice listed, including the feature and release planning, developer snapshot builds etc.

Release Overview

Version Number Assignment (Apache OpenOffice internal)

<major>.<minor>.<micro>

<major>: huge release with visible changes and new features including
incompatible API changes if necessary. Translation updates are most
often necessary to address the UI visible changes.

<minor>: smaller improvements of features that don't need any
translation. And of course any kind of bug fixes.

<micro>: only selected bug fixes and most often only critical ones. This
includes any potential security issues.
 

See also: https://en.wikipedia.org/wiki/Software_versioning