: How can I tell how many iOS 3 users are accessing my website? I would like to know how many iOS 3.2 (and presumably below) users are accessing my website. The reason is because iOS 3.2 had

@Kevin317

It turns out there is a revised version of the original research, found at this updated page
www.yuiblog.com/blog/2010/07/12/mobile-browser-cache-limits-revisited/
This revised page states that the original limits were based upon a faulty methodology, and the real limits are either 1MB or 4MB, depending. So the original 25.6K limit is irrelevant.

The article explains that that limit does apply to HTML, but not to CSS or Javascript. So as far as I am concerned, the whole this is a moot point, and there is no longer any need for me to detect old iOS versions.

Some of the info in the answers may still be relevant if you are concerned with the caching of HTML.

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@Samaraweera270

I ran into a variation of this same question yesterday. Digging into the links given in the other answer a bit, I came to the Safari versions page, and I wish I had been looking at this page yesterday. I was exporting to Excel CSV the data I was looking at (Browser Version>Safari) and was using user agent string sites to match up versions. I was looking to map all the Safari versions used by any iPhone/iPod/iPad of any generation, but on to your answer...

I think you are right to presume the iOS3.2 or earlier, but more research could confirm that. You could then export data of all Safari versions and then look at just those versions of Safari that have Safari (525.28 or earlier if I am reading right) You could then write a formula to yank all the data for only those versions into another spot in the spreadsheet/worksheet to isolate or do further analysis on.

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@Kevin317

I don't think I've ever seen an official listing of versions, so you'll have to piece things together a little.

For your immediate question, there's a page in the Safari Web Content Guide that uses the 3.2 UserAgent string as an example, and gives it as "Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/531.21.10" which I'm assuming you can take as canonical.

In the more general case:
From Casey Fleser, an iOS Release / Mobile Safari Version Table. He doesn't mention what his sources are, but it's worth noting a slight discrepancy with the Wikipedia iOS version history page, (You'll have to pop open the gray "Table of versions: iOS 3.x" bar) which doesn't doesn't show the WebKit version upgraded to 531.21.10 until iOS 3.2.1 but that's probably not a significant concern unless chasing some very specific bug.

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