On 24th of April 2020 Cisco released this "What's New for the Latest Versions of Webex Meetings" article:
https://help.webex.com/en-us/xcwws1/What-s-New-for-the-Latest-Versions-of-Webex-Meetings
It covers WBS 40.4 and older.
...wait: the english-Version covers 40.4 - all other language-versions are still at 40.2.
Is this the typical (?) US-American "we vs. the rest of the world" -thinking?
:-(
Fritz