# SF Symbol comes apart on iOS15

**URL:** <https://doubleandthrice.discourse.group/t/sf-symbol-comes-apart-on-ios15/25>\
**Category:** McKinley\
**Created:** [September 8, 2026, 5:00pm UTC](https://doubleandthrice.discourse.group/t/sf-symbol-comes-apart-on-ios15/25 "2026-09-08T17:00:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Dxzdb](https://yyz2.discourse-cdn.com/flex052/user_avatar/doubleandthrice.discourse.group/dxzdb/32/39_2.png) [@Dxzdb](https://doubleandthrice.discourse.group/u/Dxzdb)\
**Post date:** [September 8, 2026, 5:00pm UTC](https://doubleandthrice.discourse.group/t/sf-symbol-comes-apart-on-ios15/25/1 "2026-09-08T17:00:45Z")

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Thanks for creating McKinley! I’m able to do a lot very quickly. I had made a custom SFSymbol once upon a time starting with square.and.arrow.up.on.square and all I want to do is put an arrow pointing down as well. When I had done this previously it worked fine - but on iOS15 it would “blow up” and become a black blob. I imported the stock SFSymbol - copied the arrow and rotated it 180 degrees. My first try was just overlapping the full downward arrow on top of the original upward one. I was sad to see that the blob happened too with the output of McKinley - maybe SFSymbols worked differently back then?

I next edited the path of the arrow I copied and trimmed it to only be the arrow head but in order to get the preview in the upper left corner to look correct I had to move the arrow head way down. That resulting SFSymbol still turned into a blob on iOS15 as well.

Maybe I have to keep using stock SFSymbols for iOS 15 support?

Oh big Thank You for 1- having the courage to tackle such a contentious problem, 2-Releasing with the minimum macOS at 15!

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**Author:** ![AmyWorrall](https://yyz2.discourse-cdn.com/flex052/user_avatar/doubleandthrice.discourse.group/amyworrall/32/5_2.png) [@AmyWorrall](https://doubleandthrice.discourse.group/u/AmyWorrall)\
**Post date:** [September 18, 2026, 8:00pm UTC](https://doubleandthrice.discourse.group/t/sf-symbol-comes-apart-on-ios15/25/2 "2026-09-18T20:00:00Z")

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Hi!

iOS 15 shipped with SF Symbols version 3. McKinley targets SF Symbols version 6 for the most part, and they’re now up to version 8.

What I _don’t_ currently know is where in the chain Apple’s workflow handles backwards compatibility. In the SF Symbols app, there’s a warning on export about the minimum version of SF Symbols any given symbol needs:

 ![image](https://canada1.discourse-cdn.com/flex052/uploads/doubleandthrice/original/1X/49f05d78fe91644369875d8bcc281e415e389cf1.png)

I believe Apple’s app derives that warning based on which features you use in your symbol. However, I couldn’t find how to tell which things were preventing it supporting an older version!

I have to say I haven’t done much of a deep dive into the older SF Symbols support with respect to McKinley. If it’s something you’re interested in, I could have an investigate and see what I can do?