On October 29, 2020, WordPress 5.5.2 was released to the public. WordPress Version 5.5.2 addressed some security issues and fixed 14 bugs. In WordPress 5.5.2, your site gets new power in three major areas: speed, search, and security.
Ten security issues affect WordPress versions 5.5 and earlier; version 5.5.2 fixes them, so you’ll want to upgrade. If you haven’t yet updated to 5.5, there are also updated versions of 5.4 and earlier that fix the security issues.