## DESCRIPTION

The *t.upgrade* module upgrades the temporal database in the current
mapset from version 2 (default in GRASS 7) to 3 (default in GRASS 8).
The version 3 introduces a semantic label support, see
*[i.band.library](i.band.library.md)* for details.

## EXAMPLE

```sh
t.upgrade
```

## SEE ALSO

*[t.info](t.info.md)*

## AUTHORS

Martin Landa and Markus Neteler
