# version.ReleaseSuffix.release_candidate_number

- **Module:** version.ReleaseSuffix
- **Package:** libtmux
- **Language:** Rust
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-rs/blob/f0e37052c232636b61d095817046e6bfc8f2ca40/crates/libtmux/src/version.rs#L134
- **Page:** https://libtmux.org/en/rs/latest/reference/version-releasesuffix-release_candidate_number/

```
version.ReleaseSuffix.release_candidate_number(self) -> Option<u16>
```

Return the release-candidate number, if present.

The unnumbered `-rc` spelling has the effective number one.

## Example

```rust
use libtmux::ReleaseSuffix;

assert_eq!(ReleaseSuffix::RELEASE_CANDIDATE.release_candidate_number(), Some(1));
assert_eq!(ReleaseSuffix::FINAL.release_candidate_number(), None);
```