Original sentence: Beginning with the release of version 4.5.0 of Cisco Clean Access Windows 98, 98SE, ME, and Mac OS 10.2 and 10.3 are no longer supported.Cisco NAC Appliance, formerly Cisco Clean Access (CCA), is a network access control (NAC) system developed by Cisco Systems designed to produce a secure and clean network environment -- the NAC appliance is however still referred to as Cisco Clean Access by some in the industry.The system usually installs an application known as the Clean Access Agent on computers that will be connected to the network.This application, in conjunction with both a Clean Access server and a Clean Access Manager, has become common in many universities and corporate environments today
Edited sentence: Beginning with the relase of version 4.5.0 of Cisco Clean Access Windows 98, 98SE, ME, and Mac OS 10.2 and 10.3 are no longer supported.Cisco NAC Appliance, formerly Cisco Clean Access (CCA) is a network access control (NAC) system developed by Cisco Systems that helps ensure a secure and clean network environment -- the NAC appliance is however still referred to as Cisco Clean Access by some in the industry.The system usually installs a small application known as the Clean Access Agent on a computer.This application, in conjunction with both a Clean Access server and a Clean Access Manager, has become quite common in many universities and corporate environments today