The first public release was in 1990, and the next year the team moved to Sun Microsystems where they continued work on the language. Several new releases followed until falling largely dormant in 1995 with the 4.0 version. The 4.3 version was released in 2006 and ran on Mac OS X and Solaris. A new release in 2010, version 4.4, has been developed by a group comprising some of the original team and independent programmers and is available for Mac OS X and Linux, as are all following versions. The follow-up 4.5 was released in January 2014, and three years later, version 2017.1 was released in May 2017.