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- Applications must be written using the 2018 edition. - Applications must be written using the 2018 edition.
### `cortex-m` 0.6 vs 0.7 in RTIC 0.5.x
`cortex-m` 0.7 started using trait `InterruptNumber` for interrupts instead of `Nr` from `bare-metal`. In order to preserve backwards compatibility, RTIC 0.5.x will keep using `cortex-m` 0.6 by default. `cortex-m` 0.7 can be enabled using the feature `cortex-m-7` and disabling default features, e.g. on your `Cargo.toml`:
```
cortex-m-rtic = { version = "0.5.8", default-features = false, features = ["cortex-m-7"] }
```
RTIC 0.6 already uses `cortex-m` 0.7 by default.
## [User documentation](https://rtic.rs) - [(Development version)](https://rtic.rs/dev) ## [User documentation](https://rtic.rs) - [(Development version)](https://rtic.rs/dev)
## [API reference](https://rtic.rs/stable/api/) ## [API reference](https://rtic.rs/stable/api/)