The Rust programming language will reach version 1.0.0 by April 4, 2015 (the first six-week cycle after the scheduled beta1).

Created by Rory O’Kane on 2015-01-13; known on 2015-04-04; judged wrong by Rory O’Kane on 2015-05-15.

• Rory O’Kane estimated 67% on 2015-01-13
• Rory O’Kane said “Info about Rust’s six-week release cycles and planned release schedule: http://blog.rust-lang.org/2014/12/12/1.0-Timeline.html. 1.0.0-alpha was already released on January 9, as scheduled.” on 2015-01-13
• Rory O’Kane said “Evidence: in a 2012-08-03 interview, http://www.infoq.com/news/2012/08/Interview-Rust, Rust’s creator very tentatively guessed Rust would finish ‘sometime in the coming year’. It is now five months past that deadline, and Rust is just in alpha.” on 2015-01-13
• Rory O’Kane   judged this prediction wrong on 2015-05-15.