<div dir="ltr"><div class="gmail_default" style="font-family:georgia,serif">I think you can just use Xcode's tool that you upgrade to Swift 3.0. However, I suggest you do a backup of your project first in case this is not helpful.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">Also, the errors you saw were probably not because of Xcode converted you code to 2.3 automatically. It wouldn't do that. The real reason is that in Xcode 6 beta6, a lot of Swift 3.0 accepted proposals were implemented and released, which made the Swift 3.0 far more different from the previous 3.0. </div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">Xcode's migration tool is closed sourced and is not part of Swift. If you have further questions, I suggest you to ask it in Apple's developer forum.</div><div class="gmail_default" style="font-family:georgia,serif"><br></div><div class="gmail_default" style="font-family:georgia,serif">Zhaoxin</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 9, 2016 at 5:01 AM, Saagar Jha via swift-users <span dir="ltr"><<a href="mailto:swift-users@swift.org" target="_blank">swift-users@swift.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Hi,<div><br></div><div>I’ve migrated one of my projects to Swift 3 previously, with an earlier beta of Xcode. However, after downloading the GM seed, hundreds of errors pop up in my code, since it appears that Xcode has somehow reverted the compiler back to 2.3. Manually migrating using Edit>Convert>To Current Swift Syntax… always fails, due to the fact that the code had been previously migrated. Is there any way to “manually” migrate the code (i.e. change the compiler settings?)</div><div><br></div><div><div>Thanks,<br><span style="color:rgb(0,0,0);font-family:'SF UI Text';font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;display:inline!important;float:none">Saagar Jha</span><br style="color:rgb(0,0,0);font-family:'SF UI Text';font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><br style="color:rgb(0,0,0);font-family:'SF UI Text';font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px"><br style="color:rgb(0,0,0);font-family:'SF UI Text';font-size:12px;font-style:normal;font-weight:normal;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
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