You specifically mentioned recent versions... I, for one, have stopped getting any new version of Concise since 2010 and now mostly use the Specialized catalogs in combination with Collect British Stamps 2017 (both Gibbons of course). This is adequate for my purposes.
While I am sure this is what you refer to, I cannot say if the same index exists
after 2010... my latest and last version. There was a lot of re-numbering of some areas of Machins but Gibbon's CBS which I buy two-yearly covers all that anyway although not indexed by denomination.
