Has the filtering system been changed? Some of my filters from v.4 throw up an error in v.5

[PMTabs]

The following filter was working before:

const regex =
    /\b(TERM1|TERM2|TERM3)\b/i;

function filterMessage() {
  if (regex.test(msg.title)) {
    // matched!!!
    return MessageObject.Accept;
  } else {
    return MessageObject.Ignore;
  }
}

Now, the filter gives the following error (and doesn't filter the articles):

ReferenceError: MessageObject is not defined
line: 9
stack: filterMessage@:9
%entry@:1

Some of the filters have apostrophes, and they seem to cause the text that comes after them to be green (until the next apostrophe). Not sure if that has anything to do with it? As I say, it worked before 🤷‍

Cheers!

P.S. I have no real grasp of how to use any of this code, I got help from the developer a few years ago to set it up this way 😆 I can understand parts of it, but in general, I'm a complete n00b.

[Ac314]

Replace MessageObject with Msg.
Documentation (with examples): https://rssguard.readthedocs.io/en/stable/features/filters.html

[PMTabs]

That seems to have done the trick, thank you!