<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">On 2-Sep-2017, at 5:04 AM, Mr Bee via swift-users <<a href="mailto:swift-users@swift.org" class="">swift-users@swift.org</a>> wrote:<br class=""><div><div class=""><br class="Apple-interchange-newline"></div><blockquote type="cite" class=""><div class=""><div class="">Since I'm still using my old mid-2009 Macbook Pro, which is still working very well by the way, I'm stucked with macOS El Capitan (10.11.6) with Xcode 8 and Swift 3. Hence, I also couldn't install Xcode 9 and Swift 4 because they required at least macOS Sierra (10.12).</div><div class=""><br class=""></div><div class="">So, is there any other way to install Swift 4 manually and make it working with Xcode 8 that I got on my Mac? I know I'll miss some IDE features of Xcode 9 but it's alright as long as I can use Swift 4 with old SDKs.</div><div class=""><br class=""></div><div class=""><span style="font-family: Optima-Regular; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Any hints? Thank you.</span><br clear="all" style="font-family: Optima-Regular; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""></div></div></blockquote><div class=""><div class=""><br class="Apple-interchange-newline"></div></div></div>In your position, I’d go to the Downloads part of <a href="http://Swift.org" class="">Swift.org</a> and fetch the latest build of the Swift 4 toolchain for Mac. (It’s still in flux, but it’ll probably be promoted to latest/stable this month.)<div class=""><br class=""></div><div class="">Install the toolchain. This adds a Toolchains tab to the Components section of the Preferences window. Select Swift 4.0 Snapshot.</div><div class=""><br class=""></div><div class="">That should do for you, but I don’t have exactly your hardware and OS. When you say you “couldn’t install Xcode 9 and Swift 4,” you may mean that you couldn’t install Swift 4 even separately.</div><div class=""><br class=""></div><div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>— F</div><div class=""><br class=""></div></body></html>