Streamlines the content type cache refreshing, leaving some of the legacy cache clearing but that shouldn't really have an effect, with these new changes it should be guaranteed that the distributed cache is executed always for Doc, media and member types.

src/Umbraco.Core/Persistence/Repositories/ContentTypeBaseRepository.cs

@@ -54,21 +54,7 @@ namespace Umbraco.Core.Persistence.Repositories
                 yield return dto.ContentTypeNodeId;
             }
         }
-
-        /// <summary>
-        /// We need to override this method to ensure that any content cache is cleared
-        /// </summary>
-        /// <param name="entity"></param>
-        /// <remarks>
-        /// see: http://issues.umbraco.org/issue/U4-1963
-        /// </remarks>
-        public override void PersistUpdatedItem(IEntity entity)
-        {
-            InMemoryCacheProvider.Current.Clear(typeof(IContent));
-            RuntimeCacheProvider.Current.Clear(typeof(IContent));
-            base.PersistUpdatedItem(entity);
-        }
-
+        
         protected void PersistNewBaseContentType(ContentTypeDto dto, IContentTypeComposition entity)
         {
             //Logic for setting Path, Level and SortOrder