This work was finally released as Linux 2.0 in June 1996. This release
was given a major version-number increment on account of two major new
capabilities: support for multiple architectures, including a 64-bit native Alpha
port, and support for multiprocessor architectures. Linux distributions based
on 2.0 are also available for the Motorola 68000-series processors and for
Sun's SPARC systems. A derived version of Linux running on top of the Mach
micro-kernel also runs on PC and Power-Mac systems.