The current version of the RSS 2.0 specification (2.0.11), published on March 30, 2009.| www.rssboard.org
The original server operated by the Mastodon gGmbH non-profit| Mastodon hosted on mastodon.social
The ActivityPub protocol is a decentralized social networking protocol based upon the [ActivityStreams] 2.0 data format. It provides a client to server API for creating, updating and deleting content, as well as a federated server to server API for delivering notifications and content.| www.w3.org