According to wordpress.org WordPress 5.6 will be out by Dec. 8, 2020 - even though they also indicate December 9, 2020 as the release date for WordPress 5.6.
Did you notice a strange update of your WordPress yesterday? Was your WordPress installation suddenly updated to WordPress alpha version 5.5.3-alpha-49449?
Despite the Corona crisis' impact on everything, the people behind the world's most succesful Content Management System are keeping up the release frequency.