Arti 2.1.0 released: Relay and RPC development.

Arti is our ongoing project to create a next-generation Tor implementation in Rust. We're happy to announce the latest release, Arti 2.1.0.

This release contains a lot of behind-the-scenes work on relay support and on RPC development. While Arti still cannot run as a relay, we are making good progress, and we think it will soon be ready for Arti developers to test it as a middle relay.

Additionally, we have overhauled all of Arti's configuration to use a new, derive-deftly-based approach. We believe this will make defining new configuration types easier, saving us development time in the long run.

This release also contains a number of bugfixes, cleanups, as well as improvements to our CI infrastructure.

Finally, Arti 2.1.0 increases our MSRV (Minimum Supported Rust Version) to 1.89.0, in accordance with our MSRV policy.

For full details on what we've done, including API changes, and for information about many more minor and less-visible changes, please see the CHANGELOG.

For more information on using Arti, see our top-level README, and the documentation for the arti binary.

Thanks to everybody who's contributed to this release, including Niel Duysters, Nihal, Nuhiat-Arefin, Robert Bartlensky, carti-it, hjrgrn, moumenalaoui, robertb, and sjcobb!

Also, our deep thanks to our sponsors for funding the development of Arti!