WormBase follows a two month release cycle.  Bug fixes, tool improvements, curation of additional data, corrections to data, testing of the website, all happen prior to a new release of WormBase.  For every new release, new data from manual curation and from automated pipelines are added.  The version or release number is displayed on the WormBase home page at the top, for eg., WS259 is the current release of WormBase.  If you are looking at data sets periodically, please note the version/release you are looking at, because data may have changed between releases.  A list of all the data and numbers are available in the release notes for WS259.  Release notes are available on the Release Schedule page (link available in the footer navigation or from the home page from the top menu bar, About–>What’s New–>Release Schedule–>.) Click on the release number in the Release History table.