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Release notes

Release notes are documents that contain information about new product features and enhancements as installed in scheduled releases.  

Scroll down to find details on updates to WorldCat knowledge base collections. The list of available collections and detailed monthly data updates are updated every month. Join an email listserv for messages on when new releases are posted.

*See the archive to find details on prior releases.


Complete list of collections in the WorldCat knowledge base

New collections and providers are added to the WorldCat knowledge base monthly. See Collections in the WorldCat knowledge base (.xlsx) for a complete list of collections available in the knowledge base. In addition to the collection title and provider, the list indicates:

  • The collections that are open access and those that are customizable
  • The percentage of items in each collection that contain an OCLC number (note that items must have OCLC numbers to have holdings set in WorldCat and to output WorldCat MARC records)

WorldCat knowledge base data updates

Monthly data updates add and enhance collections in the WorldCat knowledge base. View the updates to quickly see if new collections have been added to which your library subscribes.


Archive of product release notes

This archive includes two sets of release notes as they were named up until September 2014 ("WorldCat knowledge base release notes" and "WorldShare Collection Manager release notes"). Starting with the October 2014 release notes, the two sets have been combined to reflect the name of the application, WorldShare Collection Manager.

Consider joining a mailing list:

  • KB-L listserv - a listserv for discussion with other users and with product experts regarding the WorldCat knowledge base. Information on monthly data updates and other news will be posted.
  • OCLC-CAT - a busy listserv for discussion on all OCLC cataloging services.

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