h2. Resource
-Collections describe sets of files in terms of data blocks stored in Keep. See "Keep - Content-Addressable Storage":{{site.baseurl}}/architecture/storage.html for details.
+Collections describe sets of files in terms of data blocks stored in Keep. See "Keep - Content-Addressable Storage":{{site.baseurl}}/architecture/storage.html and "using collection versioning":../../user/topics/collection-versioning.html for details.
Each collection has, in addition to the "Common resource fields":{{site.baseurl}}/api/resources.html: