Below are previous versions of zxplus that have been released.
 

File	Release date
ZX Plus verison 0.23	11/11/1999
ZX Plus verison 0.22	05/07/1999
ZX Plus version 0.21	19/06/1999
ZX Plus version 0.20	12/06/1999
ZX Plus version 0.10	04/06/1999

Last Modified : 11/11/1999