You can find release notes posted with each release. You can find them on our site under the ‘News / Blog Post’ section as well as a text file included with the windows install package called “ChangeLog.txt” covering this information.
As Oz identified above, you have options to achieve similar job processing times using other tools available to you within LightBurn, so I don’t understand why you think you are giving up something.
The Flood Fill feature for Ruida controllers is currently broken and thus has been removed. It is being worked on and will be brought back once we can make it work properly and provide the desired value and results. But you can still gain the desired output in about the same time if structured correctly, so no lost functionality, just a different process than you have been using.
One of the most powerful tools on the forum is the search tool available in the upper-right on every page. When I search for “Boolean features” this is the first returned post. After reviewing this, let us know if you still have questions or are not getting the results you expect.