These functions are deprecated and should no longer be used in new code. The below table gives the replacement function to use instead. The function arguments of the replacement function are the same as those of the deprecated function if no arguments are given in the table.
| Deprecated function | Replacement function | Secheduled deletion |
| slab() | slice() | October 2025 |
The below functions have been permanently deleted and can no longer be called:
| Deprecated function | Replacement function |
| CFcomplete() | is_complete() |
| CFmonth_days() | month_days() |
| CFparse() | parse_timestamps() |
| CFrange() | range() |
| CFsubset() | slice() |
| slab() | slice() |
| CFtimestamp() | as_timestamp() |