Arti 1.6.0 released: Circuit padding, side-channel attack mitigations, OpenTelemetry, and more.

Arti is our ongoing project to create a next-generation Tor implementation in Rust. We're happy to announce the latest release, Arti 1.6.0.

Arti 1.6.0 brings experimental support for circuit padding, mitigations for DropMark side channel attacks, improvements to congestion control, a new arti keys check-integrity command, and experimental support for exporting debugging information via OpenTelemetry.

It also includes behind-the-scenes work towards enabling Arti to act as a directory authority, a directory mirror, and a relay.

Arti 1.6.0 increases our MSRV (Minimum Supported Rust Version) to 1.85.1, 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 5225225, Aiden McClelland, disha, hashcatHitman, hjrgrn, Niel Duysters, Tobias Pulls, Tobias Stoeckmann, and trinity-1686a.

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