I've just run the latest chart update on both my PC and iOS device and noticed that the ALKIN point, which is the hold for Biggin and City, is now missing. I haven't checked for any other discrepancies but thought it might be worth bringing this to your attention just in case there is a general issue with this update.

I believe they are highly useful - with more RNAV then being able to avoid the starting point for a RNAV at any airfield is a critical safety capability when flying VFR (especially if there's no ATC ie Gamston early next year) and a vital waypoint for IFR flights.  I know from first hand experience for myself and fellow pilots and instructors that we were using them frequently and immediately noticed they weren't there (and wanted to use them) on the first flight after the chart update.

Thanks for your interest in this issue.