On 18th of December, Teodor Sigaev committed patch: Introduce distance operators over cubes: < #> taxicab distance < -> euclidean distance < => chebyshev distance Also add kNN support of those distances in GiST opclass. Author: Stas Kelvich

On 15th of December, Heikki Linnakangas committed patch: Add point < -> polygon distance operator. Alexander Korotkov, reviewed by Emre Hasegeli.