A major upgrade to the Open Diary software was released in September 2003, adding the "Favorites Only" (later Friends Only) option for diary access, private notes, member interests, and other features.The DiaryMaster – OD 4.0 and Some Questions (September 10, 2003). At the end of 2003, there were over 218,000 diaries active on the site.Internet Archive (December 25, 2003).
