Sig­nals in­di­cate end of 32-bit app sup­port

What to do if you see an alert, and how to find out which of your apps will need up­dat­ing.

Macworld (USA) - - Contents - BY RO­MAN LOY­OLA

Ap­ple’s tran­si­tion from 32-bit to 64-bit tech­nol­ogy on the Mac has been in the works for a while for the com­pany and de­vel­op­ers, but so far users haven’t re­ally been af­fected. That started to change be­gin­ning in mid-april.

NEW 32-BIT ALERTS IN MACOS 10.13.4 HIGH SIERRA

If you’re us­ing an old 32-bit app on a Mac, macos will dis­play an alert to let you know that it may not run op­ti­mally and that you should check with the de­vel­oper to see if

an up­date is avail­able. The alert is sim­i­lar to the ones that ap­peared when Ap­ple tran­si­tioned IOS from 32-bit to 64-bit ( go. mac­world.com/32b6).

The alerts ap­pear only when a 32-bit app launches, and will have a Learn More but­ton that takes users to an Ap­ple Knowl­edge Base ar­ti­cle that ex­plains the 32-to-64-bit tran­si­tion ( go.mac­world.com/apkb).

The alerts are part of the macos 10.13.4 up­date and started to trig­ger at mid­night on Thurs­day, April 12. If you do not have ver­sion 10.13.4 in­stalled, you will not see the alerts, but they will ap­pear once you up­date your Mac.

WHAT TO DO IF YOU SEE AN ALERT

Your app will still work af­ter the alert ap­pears; the main pur­pose of the alert is to en­cour­age users to up­date the app to a cur­rent 64-bit ver­sion. If you don’t up­date, the app will not run in a fu­ture ver­sion of macos. Ap­ple has said that macos High Sierra (the cur­rent ver­sion) will be the last ver­sion that will “run 32-bit apps with­out com­pro­mise.”

If you have a 32-bit app, check with the de­vel­oper to see if an up­date is avail­able. There could be an up­date on the de­vel­oper’s web­site, or in Ap­ple’s App Store. (The App Store stopped ac­cept­ing new 32-bit apps back in Jan­uary. This June, the App Store will stop ac­cept­ing 32-bit soft­ware up­dates.)

Ap­ple has not an­nounced a timeline for the tran­si­tion and when 32-bit apps will stop work­ing on the Mac, but it’s possible we could learn more at the com­pany’s World­wide De­vel­op­ers Con­fer­ence in June. Ap­ple usu­ally un­veils the next ma­jor ver­sions of its op­er­at­ing sys­tems at that event, so it makes sense that Ap­ple could

If you do not have ver­sion 10.13.4 in­stalled, you will not see the alerts, but they will ap­pear once you up­date your Mac.

pro­vide more de­tails then.

HOW TO SEE IF AN APP IS 32-BIT

If you’re in­ter­ested in go­ing through your Ap­pli­ca­tions folder and check­ing each app to see if it’s 32- or 64-bit, here’s how.

1. In the Finder, click on the Ap­ple menu in the up­per left and se­lect About This Mac.

2. In the Over­view sec­tion, click on the Sys­tem Re­port but­ton.

3. In the left col­umn of the win­dow that ap­pears, scroll down un­til you see the Soft­ware sec­tion.

4. In the Soft­ware sec­tion, click on Ap­pli­ca­tions. The win­dow may take a mo­ment or two to re­veal in the sec­tion to the right.

5. The right sec­tion of the Sys­tem Re­port win­dow is split into two panes. The top pane is an al­pha­bet­i­cal list of the apps on your Mac. Click an app and its de­tails ap­pear in the lower pane.

6. In the lower pane, you’ll see some in­for­ma­tion about the app you se­lected. One of the items is 64-Bit (In­tel). If this list­ing says Yes, then the app is a 64-bit app. If it says No, it’s a 32-bit app and you should check with the de­vel­oper to see if an up­date is avail­able, if you think you want to con­tinue us­ing the app in the fu­ture. ■

32-bit app alerts are com­ing to macos 10.13.4.

Sys­tem Re­port in macos High Sierra.

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