I don't know about the dates, but I checked the 40D support page only a couple of days ago to see if it was supported by DPP4 and it was still showing only DPP3 as available.
I shall be downloading it and trying it now I don't need different versions for different cameras, I tried DPP3 before and couldn't make any sense of it but that may have been because I didn't know what I was looking for!
I have just checked the 40D support page and sure enough DPP4 is available there now so maybe they didn't announce it until they had changed all the support pages.
is this a NEW release, or just a late announcement?
The European site states:
Digital Photo Professional 4.5.20 for Mac OS X
Release date: 08 December 2016
The USA site states:
Digital Photo Professional 4.5.10 for Mac OS X
« Last Edit: January 12, 2017, 08:12:41 PM by Valvebounce »
7DII+Grip, 7D+Grip, 40D+Grip, 5D+Grip, EF 24-105 f4L EF-S 17-85, EF-S 10-22, EF 70-200 f2.8 L IS II, EF 2x III, EF 100-400 f/4.5-5.6l IS II, Σ17-70 f2.8-4 C, EF 50mm f1.8, 550EX, Triopo TR-985, Filters Remotes Macro tubes Tripod heads etc!
5D, 20D, 24-105, BG-E4, BG-E2N, 17-85, Nifty 50 pre owned.