check-latest

Check if your rust executable is the latest available version on Crates.io

The Basics

if let Ok(Some(version)) = max_version!() {
    println!("We've released a new version: {}!", version);
}

Notes

Using this library in your

If you use this library for your binary, you should probably make this an optional feature. Simply checking for the latest version on Crates.io brings over a lot of dependencies in order to send a request to the API and parse the response. Some users may want to turn off this feature for a smaller binary. Some may simply prefer not to be told to install an update.

You can make this feature optional by adding this to your Cargo.toml.

[dependencies]
check-latest = { version = "*", optional = true }

You can then selectively compile the parts of your binary that check for later releases with this attribute to the parts that should be compiled if this feature is enabled.

#[cfg(feature = "check-latest")]