OpenLisp
History
In 1988, the very first motive behind OpenLisp was to implement a Lisp subset to extend EmACT, an Emacs clone. ISLISP became an obvious choice quickly.

OpenLisp

Section Title: History
Table Section Text: In 1988, the very first motive behind OpenLisp was to implement a Lisp subset to extend EmACT, an Emacs clone. ISLISP became an obvious choice quickly.

Year	Version	Main feature

1988	1.0	OpenLisp begun as a toy language named MLisp (Minimal Lisp) to experiment with ideas from ISLISP standards process

1993	3.3	First port on 64-bit machine (DEC Alpha OSF/1); name change from MLisp to OpenLisp

1994	4.0	First commercial use

1995	4.5	Socket streams support

1997	5.7	OpenLisp is first Lisp to implement ISLISP ISO/IEC 13816:1997(E) standard.

1998	5.8	Unicode optional support

2000	6.6	Lisp to LAP compiler; LAP is interpreted by a virtual machine embedded in OpenLisp; speed improved about 2x

2003	7.5	Lisp to C backend; able to compile an application with many Lisp files to a standalone executable; speed improved from 10x to 20x

2007	8.7	Changes to match ISO/IEC 13816:2007(E) revision

2010	9.2	Native integer arbitrary-precision arithmetic support

2019	10.5	Latest version; 2019-03-21

Sentence(s)

The main goal of 5.7 OpenLisp version is to implement a fully ISLISP system restricted to ISO/IEC 13816:2007(E).

final_sentence: The main goal of 5.7 OpenLisp version is to implement a fully ISLISP system restricted to ISO/IEC 13816:2007(E).