iMac Update to 64 bit technology

I use an iMac fit Mojave operating system, it is the last system to use 32 bit technology. I get messages to say that my Libre Office app will not work with future updates of the operating system. Do you have any plans to update the app to 64 bit technology?

The 64-bit version of LibreOffice for macOS was available from the official site since version 4.2 (when 64-bit build was introduced), and 32-bit build was no more available since version 5.4.

Many thanks for that will download it.