SecureDrop 2.9.0 was released on June 27, 2024. It updates the SecureDrop Release Signing Key expiry date and adds support for Tor's proof-of-work defenses for the Source Interface, to protect against network attacks. New instances will have this feature enabled by default. Existing instances can enable proof-of-work defenses by following our documentation.
See https://securedrop.org/news/securedrop-2_9_0-released/ for more information.