What changed in ODS in U66596. History comes from monthly NHS releases until August 2026, then from the ODS API every 6 hours.
Showing changes by the date ODS says they took effect.
Effective 15 Apr 2026
Effective 15 Apr 2026
Effective 15 Apr 2026
Effective 15 Apr 2026
4 changes in the chart (notable), counted by date effective.