[swift-users] How do I find really detailed information about changes?

[Kevin Nattinger]

I could be wrong (haven’t tested, but my impression is that only components you explicitly request in the option set passed to calendar.components will be non-nil.

> On Jun 22, 2016, at 9:49 AM, Eric Miller via swift-users <swift-users at swift.org> wrote:
> 
> I'm working on migrating from Swift 2.3 to Swift 3.0.
> 
> Sometimes I can't get as much info about a change as I like. I'm aware of the swift-evolution github repo and can search that. Swift.org's migration guide is also really helpful.
> 
> I'm now trying to find why, along with changing from NSCalendar to Calendar, the .components are optional. I can't find any mention of it, and I'm not sure in what situation minutes or hours could be nil and how I should guard against it.
> 
> Is there a way to search the evolution mailing list, or is there a better place to search?
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