They are either the same age or Rust is considerably older, depending on how you look at it:
Rust was publicly announced in 2010, after ~4 years of development in private (starting sometime in 2006, though I don't know how fast that went).[0]
Swift development started that year, 2010, in secret at Apple.[1] It became public in 2014 (some would say it was still in a beta state despite the 1.0 label).
Rust was publicly announced in 2010, after ~4 years of development in private (starting sometime in 2006, though I don't know how fast that went).[0]
Swift development started that year, 2010, in secret at Apple.[1] It became public in 2014 (some would say it was still in a beta state despite the 1.0 label).
[0]:https://en.wikipedia.org/wiki/Rust_(programming_language)#Hi... [1]:https://en.wikipedia.org/wiki/Swift_(programming_language)#H...