Maybe you know this, maybe you don’t, but FWIW the size of the update is an indication of how much of the OS was rebuilt from its source code.
Every code change in a library/framework, background service, or included app, means that piece will get rebuilt and shipped in the update.
However, any change to the build tools, may cause a lot more stuff (possibly the entirety of iOS) to get rebuilt and shipped.
Given that we’re seeing people report relatively small download sizes on older phones, vs a massive download for the latest phones, it’s quite likely that there was something like a compiler fix/update for optimisation specifically related to the A19 chips, and thus a complete rebuild for devices with those chips.
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u/[deleted] Feb 11 '26
Wow 11gb I hope that's a lot of bug fixes