[swift-evolution] Winding down the Swift 3 release

[Dan Stenmark]

With the generics and ABI stability goals getting pushed out to a future release, how does that affect the plans for Swift concurrency features?  Will the topic still be explored in the Swift 4 timeframe, or do you expect that discussion be deferred to 5 or beyond?

Dan

> On May 16, 2016, at 8:18 AM, Chris Lattner via swift-evolution <swift-evolution at swift.org> wrote:
> 
> Hi Everyone,
> 
> As we get deeper into the Swift 3 release cycle, we’re beginning to have a more precise understanding about what the release will shape up to be.  Ted posted details of the Swift 3 release process last week (https://swift.org/blog/swift-3-0-release-process/) and I just updated the main swift-evolution README.md file (https://github.com/apple/swift-evolution) with some updated details about the goals of Swift 3.
> 
> This release is shaping up to be a really phenomenal release that will redefine the feel of Swift and make a major leap towards maturing the Swift language and development experience.  We have had a focus on getting to source stability, with the forward-looking goal of making Swift 4 as source compatible with Swift 3 as we can reasonably accomplish.  It tackled API naming head on (which is one of the hardest problems in computer science [1]), made major improvements to the consistency and feel of the language, and has several nice across the board additions.
> 
> That said, it is also clear at this point that some of the loftier goals that we started out with aren’t going to fit into the release - including some of the most important generics features needed in order to lock down the ABI of the standard library. As such, the generics and ABI stability goals will roll into a future release of Swift, where I expect them to be the *highest* priority features to get done.
> 
> I expect discussion and planning for Swift 3.x and Swift 4 to start sometime around August of this year.  Until then, it is very important that we as a community stay focused on the goals of Swift 3: I’d really prefer us all to resist the urge to discuss major blue sky features for future releases.  We would also like to put a significant amount of effort into bug fixing and quality refinements as well, which means that the core team will be proactively deferring evolution proposals to later releases that don’t align with the Swift 3 goals, especially those that are strictly additive.
> 
> Thank you for all of the amazing community that has developed on this list, it is great to work with you all!  Let us know if you have any questions,
> 
> -Chris
> 
> [1] It is well known that the two hard problems in Computer Science are naming, cache invalidation, and off-by-one errors.
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