More and more Linux distros are shifting towards 64bit version, so the software makers are also following the trend and are dropping support for 32bit version. LibreOffice is the latest one to join the trend. LibreOffice is a popular open source alternative to MS Office. With the release 6.3 beta, the open source office suite has stopped providing 32-bit binaries for the Linux platform.
With the release of version 6.2, the vendor made it clear in its release note that they will provide 32bit distribution after 6.2. Although you can still create a 32bit version of it. Because of 32bit compatibility is still present in the source code.
This decision is caused by the dwindling number of users downloading the 32-bit Linux distribution-neutral binaries which translates into not being worth testing, compiling, maintaining, and distributing them. But it is also worth mentioning that this change will only affect Linux and the 32-bit Windows images remain unaffected. The Document Foundation, makers of LibreOffice, adds that the Windows situation will be reconsidered if the number of downloads drops to the same levels as Linux 32-bit packages.
LibreOffice 6.3 Beta 1 is now available for Windows, Linux, and macOS. You can download it from here and you can run along with the current version to test the features.