LibreOffice 6.4 beta 1 is available for downloading now. There are builds for all main OS for 64 bit. There is a 32 bit build for Windows also.
These builds are only for testing.
Links for downloading below:
Description of fixed bugs in LibreOffice 6.4 beta 1 compare with LibreOffice 6.4 alpha 1 is by link.
If you found a bug in LibreOffice 6.4 beta 1, then please file a bug reprort in our Bugzilla.