I may be missing something here, but I have to disagree with some of the version numbers that are being quoted in this thread.
I have an app that supports iOS 5.1.x, which was a requirement since that is that last iOS version supported on the original iPad. It was developed using whatever the current SDK was, but with a deployment target of 5.1. And it uses ARC, GCD, and blocks. Not auto-layout. My memory isn’t that good about the differences between 5.0 and 5.1, but it is definitely true that 5.1 has a lot more capability in it than has been claimed in this thread. Cheers, Rick Aurbach Aurbach & Associates, Inc. > On Aug 14, 2015, at 2:00 PM, cocoa-dev-requ...@lists.apple.com wrote: > > Message: 2 > Date: Fri, 14 Aug 2015 09:42:13 -0700 > From: Jens Alfke <j...@mooseyard.com> > To: Appa Rao Mulpuri <appar...@ivycomptech.com> > Cc: "Cocoa-dev@lists.apple.com" <Cocoa-dev@lists.apple.com> > Subject: Re: Tech update avoiding legacy code > Message-ID: <6981443e-3e53-4c2c-b264-dfe20c73d...@mooseyard.com> > Content-Type: text/plain; charset=windows-1252 > > >> On Aug 13, 2015, at 11:27 PM, Appa Rao Mulpuri <appar...@ivycomptech.com> >> wrote: >> >> Thanks for the priority order. In GDC Vs ARC, GCD is the first one to opt >> unless if you are app has more memory leaks. Correct me If I am wrong. > > ARC will simplify your source code, make new code easier to write, and make > memory issues (leaks, crashes due to messaging dealloced objects) less > likely. Once I switched I couldn’t imagine how I worked without it. > > GCD is useful if you make heavy use of concurrency in your app and need all > the performance you can get. Not all apps will need it. If you’re using > NSOperationQueue, you’re already taking advantage of GCD on OS’s that support > it. > > One thing we both forgot to mention is blocks — I can’t remember, can you > even use blocks in an app targeting 10.5? If not, those would be a huge, huge > reason to drop support. Possibly bigger than ARC. Blocks make the language so > much more flexible, even without GCD. > > —Jens > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
