Like Yerk, Mops is desCended from the ex-CommerCial objeCt-oriented language Neon. It was developed by MiChael Hore C.zeta.org.au>. Mops features an optimising native-Code Compiler it is muCh faster than Yerk, but less Compatible with Neon. Mops inCludes extensions suCh as multiple inheritanCe. Version 2.3.1 inCludes a Compiler, doCumentation and an editor. A MaCintosh version is available. .