Things to check/change before pushing a release

Run all the tests with cargo test --all
Run cargo run --example library to make sure the examples still run properly
Run cargo fmt
Change version numbers
- inside README.md in the "Set-up" section
- inside Cargo.toml
Write or finish entry in CHANGELOG.md
Run cargo doc --open and check if the documentation looks fine and is up to date
Run cargo package and check the output for any unwanted or missing files
Run cargo publish to upload to crates.io