The Fermat prime calculator is a pattern that was constructed by Jason Summers on January 7, 2000 that calculates Fermat prime numbers. It is rigged to self-destruct and stop growing if any Fermat primes over 65537 are found. Since the existence of such primes is an unsolved problem in mathematics, it is unknown if this pattern exhibits infinite growth.
August 23: Adam P. Goucher adds to slmake a fast elbow push recipe created by Pavel Grankovskiy, based on a c/4 diagonal crabwickstretcher. This means that recipes for self-constructing structures with a not-quite-attainable limit speed of c/4 can now be semi-automatically compiled.
August 16: Tanner Jacobidiscovers a 14-glider recipe for a crab spaceship, down from the previous cost of 16, which can be used to reduce the size and construction cost of a wickstretcher seed.