| system_update_1008 | modules/system/system.install | Performance update for queries that are related to the locale.module |
| system_update_1015 | modules/system/system.install | Add an index on watchdog type. |
| system_update_1016 | modules/system/system.install | Allow for longer URL encoded (%NN) UTF-8 characters in the location field of watchdog table. |
| system_update_1017 | modules/system/system.install | Allow role names to be up to 64 characters. |
| system_update_1018 | modules/system/system.install | Change break tag (was removed, see 1020). |
| system_update_1019 | modules/system/system.install | Change variable format for user-defined e-mails. |
| system_update_1020 | modules/system/system.install | Change break tag back (was removed from head). |
| system_update_1021 | modules/system/system.install | Update two more variables that were missing from system_update_1019. |