I usually add it to web.config. Documentation says:
"Pages are automatically versioned in a standard installation. The uiMaxVersions attribute in the applicationSettings node in the Web.config file, defines the number of page versions that the system will keep, default value is 20."
Give a try by setting this in web.config.
"uiMaxVersions = 5",
<episerver> <applicationSettings globalErrorHandling="RemoteOnly" disableVersionDeletion="false" httpCacheability="Public" uiEditorCssPaths="~/Areas/Onyx/Static/css/editor.css" urlRebaseKind="ToRootRelative" pageUseBrowserLanguagePreferences="false" uiShowGlobalizationUserInterface="true" subscriptionHandler="EPiServer.Personalization.SubscriptionMail,EPiServer" uiMaxVersions="5" pageValidateTemplate="false" uiUrl="~/EPiServer/CMS/" /> </episerver>
Looks like setting this up does not automatically removes previous 15 versions. Will it later? Is there way to do it through admin panel? Or shall I develop my own scheduled job?
Note though that it doesn't remove draft versions...these are not counted in your 15 versions...
I have changed "Config -> System Settings -> Maximum number of versions" few times recently from 20 to 5, but at some point it always gets back to 20. Not sure why. Tried to search the code for that setting and couldn't find anything even slightly related (or poorly searched?). Does any of you have ideas why? Shall I change it directly through DB?