As Dave has pointed out elsewhere, the meaning of the rating field (used in the Library and in Collections) has changed in L5, and myrating has taken it's place. This change will break existing collections. For example, I use the rating field a lot (and recommend to others to do the same), to create "My favourite ....." collections.
With L5, all those collections will change, without warning, and it would probably be many weeks or months before most users notice, and perhaps even longer before they are able to change it.
Moreover, users who maintain L4 and L5 installations (e.g. those who have XP on an old computer somewhere) will find that their collections will be different on the two machines.
Can I therefore suggest one of the following:
- Ideally, leaving the 'rating' field as it is, i.e. meaning "my rating".
- Failing that:
- When upgrading to L5, have the software do a search and replace to change the 'rating' field to 'myrating' in all collections.
- AND add support for the 'myrating' field in 4.6, so that synced collections will still work there.