If you scroll to the foot of the Help section on Variables, it will tell you that (most) Variables are not supported in the Free version (and it lists those that are not). %YEAR% is one of them, as are %MONTH% & %DAY%
All the listed Variables are supported in the commercial versions. Bear in mind the Help file is common to all versions (which helps us keep it up to date for you with each new program update), but unsupported features/aspects in a particular version are highlighted or annotated accordingly. Naturally it would be unfeasible to state this individually for every such Variable, so they are listed at the end en masse
All the listed Variables are supported in the commercial versions. Bear in mind the Help file is common to all versions (which helps us keep it up to date for you with each new program update), but unsupported features/aspects in a particular version are highlighted or annotated accordingly. Naturally it would be unfeasible to state this individually for every such Variable, so they are listed at the end en masse