Sinatra 2.0 released
The relevant timeline for Sinatra is as follows:<p>- Rails 1.0 is released, popularizing Ruby<p>- Rails 2.0 is released, deprecating patterns that were best practices in 1.0 and advocating REST patterns.<p>- Sinatra is born, distilling the ideas behind REST into an extremely simple and performant microframework.<p>- Sinatra has been copied/emulated in nearly every programming language, and its clones have also been widely successful.<p>- Rails went on to release subsequent versions, each of which advocated doing a near rewrite of working code and obsoleted/broke many of the libraries in the ecosystem.<p>- Meanwhile, Sinatra has remained very stable and its design has continued to inspire new clones.  See Floor, Scotty, Opium, Express, Flask, etc.<p>Bravo to the Sinatra team for building and maintaining a useful product.