X's own announcement (the XCreators post) introduced the Original Content Rewards Program on 2026-08-07, stated Creator Revenue Sharing stopped accepting new enrollments (Aug 7), that enrolled creators would earn through Sept 7 with final payouts, and that "Starting September 8, 2026, we'll begin rolling out access for existing Revenue Sharing members to apply for the new Original Content Rewards Program." Multiple independent outlets (Tubefilter, ET Now, NetInfluencer, others) reported the same timeline and noted the new program's mechanics and payout schedule (several outlets note a first payout date in late August). Taken together, the official post plus independent reporting show the old Creator Revenue Sharing was explicitly marked as ending (effective Sept 7) and the Original Content Rewards program was active/being made available to creators by Sept 8, 2026.