<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">No, this is not possible. All of the code in a single process needs to be compiled with the same version of Swift.<div class=""><br class=""></div><div class=""> - Daniel</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jun 27, 2016, at 7:04 AM, Ted Bradley via swift-users <<a href="mailto:swift-users@swift.org" class="">swift-users@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);"><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class="">So does that mean then that Swift 2.3 and Swift 3.0 can interoperate?<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class="">E.g.<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class="">iOS Target ‘Foo’, imports a custom Framework ‘Bar’<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class="">Foo is Swift 3.0<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class="">Bar is Swift 2.3<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class=""><o:p class=""> </o:p></span></div><div style="border-style: solid none none; border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding: 3pt 0in 0in;" class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><b class=""><span style="font-family: Calibri;" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="font-family: Calibri;" class="">zh ao <<a href="mailto:owenzx@gmail.com" class="">owenzx@gmail.com</a>><br class=""><b class="">Date:<span class="Apple-converted-space"> </span></b>Monday, 27 June 2016 at 14:34<br class=""><b class="">To:<span class="Apple-converted-space"> </span></b>Ted Bradley <<a href="mailto:ted.bradley@hudl.com" class="">ted.bradley@hudl.com</a>><br class=""><b class="">Cc:<span class="Apple-converted-space"> </span></b>"<a href="mailto:swift-users@swift.org" class="">swift-users@swift.org</a>" <<a href="mailto:swift-users@swift.org" class="">swift-users@swift.org</a>><br class=""><b class="">Subject:<span class="Apple-converted-space"> </span></b>Re: [swift-users] Can Swift 2.3 frameworks be used with a Swift 3.0 app?<o:p class=""></o:p></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><o:p class=""> </o:p></div></div><div class=""><div class=""><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-family: Times;" class="">You need to wait until they are promised to work with 2.3 or 3.0. If you can get the source code, you can use migration tool and compile the framework yourself.<o:p class=""></o:p></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-family: Times;" class=""><o:p class=""> </o:p></span></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-family: Times;" class="">Zhaoxin<o:p class=""></o:p></span></div></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><o:p class=""> </o:p></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class="">On Mon, Jun 27, 2016 at 6:29 PM, Ted Bradley via swift-users <<a href="mailto:swift-users@swift.org" target="_blank" style="color: purple; text-decoration: underline;" class="">swift-users@swift.org</a>> wrote:<o:p class=""></o:p></div><blockquote style="border-style: none none none solid; border-left-color: rgb(204, 204, 204); border-left-width: 1pt; padding: 0in 0in 0in 6pt; margin-left: 4.8pt; margin-right: 0in;" class=""><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class="">Ah, I wasn’t being clear :)</span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class=""> </span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class="">I meant user created frameworks. Such as you would get manually or via Carthage / Cocoapods. Could those be migrated to Swift 2.3, whilst your main target is migrated to Swift 3.0?</span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class=""> </span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class="">As a temporary stop-gap of course.</span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt; font-family: Calibri;" class=""> </span><o:p class=""></o:p></div><div style="border-style: solid none none; border-top-color: rgb(181, 196, 223); border-top-width: 1pt; padding: 3pt 0in 0in;" class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><b class=""><span style="font-family: Calibri;" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="font-family: Calibri;" class="">zh ao <<a href="mailto:owenzx@gmail.com" target="_blank" style="color: purple; text-decoration: underline;" class="">owenzx@gmail.com</a>><br class=""><b class="">Date:<span class="Apple-converted-space"> </span></b>Monday, 27 June 2016 at 11:27<br class=""><b class="">To:<span class="Apple-converted-space"> </span></b>Ted Bradley <<a href="mailto:ted.bradley@hudl.com" target="_blank" style="color: purple; text-decoration: underline;" class="">ted.bradley@hudl.com</a>><br class=""><b class="">Cc:<span class="Apple-converted-space"> </span></b>"<a href="mailto:swift-users@swift.org" target="_blank" style="color: purple; text-decoration: underline;" class="">swift-users@swift.org</a>" <<a href="mailto:swift-users@swift.org" target="_blank" style="color: purple; text-decoration: underline;" class="">swift-users@swift.org</a>><br class=""><b class="">Subject:<span class="Apple-converted-space"> </span></b>Re: [swift-users] Can Swift 2.3 frameworks be used with a Swift 3.0 app?</span><o:p class=""></o:p></div></div><div class=""><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""> <o:p class=""></o:p></div></div><div class=""><div class=""><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-family: Times;" class="">I don't know which frameworks you talking about. The Foundation framework is definitely different. But Cocoa and Cocoa Touch should be the same.</span><o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-family: Times;" class=""> </span><o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-family: Times;" class=""> </span><o:p class=""></o:p></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-family: Times;" class="">Zhaoxin</span><o:p class=""></o:p></div></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""> <o:p class=""></o:p></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class="">On Mon, Jun 27, 2016 at 6:04 PM, Ted Bradley via swift-users <<a href="mailto:swift-users@swift.org" target="_blank" style="color: purple; text-decoration: underline;" class="">swift-users@swift.org</a>> wrote:<o:p class=""></o:p></div><blockquote style="border-style: none none none solid; border-left-color: rgb(204, 204, 204); border-left-width: 1pt; padding: 0in 0in 0in 6pt; margin: 5pt 0in 5pt 4.8pt;" class=""><div class=""><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt;" class="">Can Swift 2.3 frameworks be used with a Swift 3.0 target app?</span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt;" class=""> </span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt;" class="">From what I’m reading in the documentation, it seems like everything needs to be either all Swift 2.3 or all Swift 3.0 – no mix and matching.</span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt;" class=""> </span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt;" class="">Unfortunately, the beta has been pretty unstable on my system so I’ve not managed to get enough time to test this out yet. Appreciate hearing from anyone who knows definitively or has tried this.</span><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""><span style="font-size: 11pt;" class=""> </span><o:p class=""></o:p></div></div></div><p class="MsoNormal" style="margin: 0in 0in 12pt; font-size: 12pt; font-family: 'Times New Roman';"><br class="">_______________________________________________<br class="">swift-users mailing list<br class=""><a href="mailto:swift-users@swift.org" target="_blank" style="color: purple; text-decoration: underline;" class="">swift-users@swift.org</a><br class=""><a href="https://lists.swift.org/mailman/listinfo/swift-users" target="_blank" style="color: purple; text-decoration: underline;" class="">https://lists.swift.org/mailman/listinfo/swift-users</a><o:p class=""></o:p></p></blockquote></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman';" class=""> <o:p class=""></o:p></div></div></div></div></div></div></div></div><p class="MsoNormal" style="margin: 0in 0in 12pt; 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