Racket 5.1

Racket^* 5.1 has been released with a massive GUI rework which leads to a fact that it doesn't look like crap on Linux anymore. Go grab it here: http://racket-lang.org and start programming something useful. 

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[*] Racket is a Scheme influenced JIT-compiled programming language with robust metaprogramming and DSL creation facilities that allows to write procedural, functional, object-orientated, lazy evaluated and statically typed code. Combined with a rich set of libraries for GUI, multithreading, network and shell programming it makes Racket a perfect tool for both education and writing real world highly scalable ENTERPRISE solutions.

>>38
Yeah, the recurrent "last beta" email has been grating me for the past year.

Racket supports Racket, R5RS and full R6RS, though.
This wasn't intended to be a "my Scheme has a bigger penis than your Scheme" match, I trying to explain why, relatively speaking, it was a more significant release.