WordPress brought a speedy update to 4.9.4 for users, as the previous update broke down the automatic update system, causing a dangerous situation.
For a long time, WordPress pages have been upgraded to a new version if this feature is turned on. In version 4.9.3, there is an error that causes updates to fail and the only way to manually update it manually itself. When the version is upgraded to 4.9.4, updates are automatically updated.
In some cases, web hosting service providers may themselves upgrade their web pages if such agreements are made.
However, the bug is a very dangerous situation: when users are used to automatic updates, and they are upgraded to version 4.9.3. The thing is, that where it stalls unless the user checks regularly updates themselves, otherwise it will render their sites out of date very soon .
So it's very important that the message also reaches the owners of the web pages who do not follow the news for webmasters.
If you're running Wordpress pages, have you updated to the latest version?