The following table provides a cross-reference of the most recent CM4D versions and each database Schema.
| Version | Site Schema | Update Site Script | CM4D Schema | Update CM4D Script |
| v21.0 | 21a | UpdateSite21a.sql | 21a | Update21a.sql |
| v21.1 | 21b | UpdateSite21b.sql | 21a | |
| v21.5.10 | 21c | UpdateSite21c.sql | 21a | |
| v22.0* | 22a | UpdateSite22a.sql | 22a | Update22a.sql |
| v23.1.0 | 23a | UpdateSite23a.sql | 23a | Update23a.sql |
| v23.4.0 | 23b | UpdateSite23b.sql | 23a | |
| v23.4.1 | 23c | UpdateSite23c.sql | 23a | |
| v23.4.3 | 23d | UpdateSite23d.sql | 23a | |
| v24.1 | 24a | UpdateSite24a.sql | 24a | Update24a.sql |
| 24b | UpdateSite24b.sql | 24b | Update24b.sql | |
| 24b | 24c | Update24c.sql | ||
| v25.0 | 25a | UpdateSite25a.sql | 25a | Update25a.sql |
| 25b | UpdateSite25b.sql | 25b | Update25b.sql | |
For upgrades from versions older than v21, see the topic Database Schema Archive.
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