Rust-libp2p v0.40.0 released

We released rust-libp2p v0.40.0.

This is a large release consisting of many small changes. As always, please raise any questions you might have on the rust-libp2p GitHub repository. In addition, feel free to tag @mxinden on the pull request updating your project to v0.40.0 for review.

As always you can find a detailed list of changes in the changelog .