Powershell script "SnowScript - Scan-Swid 1.8", which is part of the Snow agent for Windows 6.7.0, shows a End of Life and End of Support date 21-Oct-2020.

Seen in versions

Snow Inventory 6.4
Snow Inventory 6.5
Snow Inventory 6.7
 

Ability to see and alter referring to end of End of Life and End of Support date 21-Oct-2020.

This is actually correct information. The SWIDtag script was moved into the Snow Inventory Server after the Scan-Swid script 1.8. 

For full support, the script is now run exclusively through the Inventory Server product.

With the release of INV Agent 6.7 (Win) INV Agent 6.6 (macOS) & INV Server 6.4 and 6.5 the script will no longer be used.