For nearly 5 years now Google has been saying that the old, “timeless” variation of Google Sites would be closing “quickly.” It appears that they really mean it this time. In an e-mail to Google Workspaces domain administrators and in
this post, Google has actually revealed that on May 15th the capability to produce brand-new sites using the old variation of Google Sites will be removed. Then on December 1st editing of sites made with the classic version of Google Sites will be handicapped. And on January 1, 2022 all websites made with the timeless variation of Google Sites will be offline..

Shift from Classic Google Sites to Current Google Sites.
People who are still using the traditional version of Google Sites can transition to the existing version of Google Sites by following the directions in this video. It should be kept in mind that not all functions found in the traditional version of Google Sites are offered in the current version of Google Sites..
Produce a Website with Google Sites.
The existing version of Google Sites is easier to use and more aesthetically pleasing than the timeless version. And there are some helpful functions in the current version that were not readily available in the traditional version.

3 Quick Ideas for Using Google Sites in Your Classroom.