Hello @LastPass User
Welcome to the LastPass Community!
Appreciate your time and for bringing this up to us. I can confirm that we do have a new Desktop App and that the old will be retired in January. For more details on what's changing you can review this article: About the LastPass for Desktop application (new experience).
You can also review our official press post regarding this here in the community: Meet Your New LastPass For Windows Desktop App.
You will also find related articles to install in the left menu once you visit the article. If you need further assistance or have any more questions please let us know here or contact us via support case.
Thank you,