In the release notes for Sugar 11; the function isInList has been updated to work with mulitselect fields; Is there an examples of how to properly make this call?

In the release notes for Sugar 11, https://support.sugarcrm.com/Knowledge_Base/Installation_Upgrade/What_to_Expect_When_Upgrading_to_11.0/. It states 

Sugar Logic Passing a mulitselect field as a second parameter in the isInList() formula does not work. Admin users can now pass a mulitselect field as a second parameter in the isInList() formula.

What is the proper way to use this update?

I'm trying to show a value if ABC or DEF is selected in the multiselct field

isInList(createList("ABC", "DEF"), $multiselectfield)

or

or(isInList("ABC", $multiselectfield), isInList("DEF", $multiselectfield)

Documentation has not been updated for this chanage