Atom

[go] https://en.wikipedia.org/wiki/Atom_(Web_standard)
- [quote] The Atom format was developed as an alternative to [RSS]. Ben Trott, an advocate of the new format that became Atom, believed that RSS had limitations and flaws—such as lack of on-going innovation and its necessity to remain backward compatible—and that there were advantages to a fresh design.
spec rfc https://tools.ietf.org/html/rfc5023