I downloaded and updated 10.10.5 via Software Update and the App Store. It's slightly less that 1 Gb, including the iTunes updater.

Question: there used to be a way to capture the download so that you could apply it to other Macs without having to download it again, and I have a monthly limit on my broadband.

I've forgotten how you do that?

Thanks.


iMac (19,1, 3.1 GHz i5, 12.7.4, 40 Gb RAM); MacBook Air (1.8 Ghz, 8 Gb RAM, 10.14.6, 256 Gb SSD) Vodafone router and Devolo Wi-Fi Extender, Canon TS8351 printer/scanner.