This is the home page for R7RS, the Revisedā· Report on the Algorithmic Language Scheme. This version of Scheme has been divided into a small language, suitable for educators, researchers, and users of embedded languages; and a large language focused on the practical needs of mainstream software development.
The report on the small language was finalized on July 6, 2013. It is available in PDF format and as LaTeX source code. There are errata.
A frozen copy of the Red Edition ballot is available at RedEditionBallot, with a link to the Google Form where actual voting is done. Ballots are due by noon UTC on July 20, 2016. Vote, vote, vote!
For R7RS-small implementations, see ImplementationSupport.
For R7RS benchmarks on many Schemes, see this graphic. Some adjustments were made to accommodate the differences between Schemes. The source is here.