Well I have successfully created the updated isos for EN in both flavors x86-x64 and from those to the GR(eek) I also needed. Matched the checksums and the whole thing was fast and nice but the isos keeps getting bigger and bigger every time. Hope the don't release updated isos every single month!
Looking at the trend, it seems so. Spoiler: Moral Ssshhh... Integrating CU to Windows 10 isos, it's a waste of time nowadays.
Read first post (máš tam odkaz na en iso a svf na cz, mimoto můžeš použít i esd, na ty jsou odkazy přímo na web ms).
I'm not sure where these are even coming from. There's one marked as "VLSC" but I have a VLSC account and the ones there are still from September. The ISO from MS's own Windows 10 download link are also apparently from September.