macOS Catalina (or macOS version 10.15) is coming in October 2019, bringing with it a slew of really nice improvements and new features.
However, unlike earlier macOS releases - you need to prepare for macOS Catalina, or you could run into trouble right after the upgrade!
A quick patch update to Windows can extend the useful life of a PC. To take the fear out of Upgrading Windows 98 to Windows XP, rely on this guide. - PCSTATS Tips