"although remember that both NSError** out parameters and exceptions are 
autoreleased and do not escape block lexical scope happily"

That statement needs to be linked to clarification.

> On Sep 6, 2018, at 12:56 , Jeff Nadeau <jnad...@apple.com> wrote:
> 
> This behavior changed in 10.12  for applications linked against that SDK or 
> later. It’s listed in the “Behavioral changes” section of the Core Data 
> release notes for that year: 
> https://developer.apple.com/library/archive/releasenotes/General/WhatNewCoreData2016/ReleaseNotes.html#//apple_ref/doc/uid/TP40017342-CH1-DontLinkElementID_10
>  
> <https://developer.apple.com/library/archive/releasenotes/General/WhatNewCoreData2016/ReleaseNotes.html#//apple_ref/doc/uid/TP40017342-CH1-DontLinkElementID_10>
> 
> There's a documentation bug to correct the information on the 
> NSManagedObjectContext class doc. I’ll give it a little bump.
> 
> Going forward, you can set the undoManager property with your own 
> NSUndoManager after you’ve initialized the context.
> 
> - Jeff
> 
>> On Sep 5, 2018, at 7:33 PM, Dave Fernandes <dave.fernan...@utoronto.ca> 
>> wrote:
>> 
>> The docs say:
>> "In macOS, a context provides an undo manager by default; on iOS, the undo 
>> manager is nil by default.”
>> 
>> However, I am finding on macOS 10.13.6, the undoManager is always nil when 
>> creating a MOC. Is this new behavior expected for High Sierra, or is it a 
>> bug?
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-- 
Rick Mann
rm...@latencyzero.com


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