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Tag: 64-bit

The status of 32-bit and 64-bit macOS apps

In the Mac world, 32-bit apps have been disappearing more and more as time goes on. This year already we’ve seen significant steps toward 64-bit.

In January 2018 Apple stopped accepting 32-bit app submissions to the Mac App Store.

In February 2018, starting with macOS 10.13.4, Apple added a warning that displays the first time you launch a 32-bit app.

In June 2018 Apple stopped accepting updates to 32-bit apps in the Mac App Store. All new apps and app updates must now be 64-bit.

At WWDC 2018 Apple announced that macOS 10.14 will be the final version that support 32-bit apps. Although they did not announce a release date, based on the timing from the past few years macOS 10.14 will probably be released around the end of September 2018.

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Avoiding False-Positive Virus Detection in Windows Apps

Viruses continue to be a big problem on Windows. As a result, anti-virus software can be a bit over-zealous about detecting what it believes to be apps that have viruses embedded within them. We have had reports over the years that apps made with Xojo are sometimes falsely identified as being infected with a virus. This sometimes occurs because the 32-bit Xojo compiler puts executable code in a location where the anti-virus software doesn’t expect to find it. We’ve seen this occur even when users are debugging apps from the IDE. Fortunately in that case, there’s a fairly easy solution.

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Compilers 105 – Back End Overview

Once the front end has done its work its time for the back end components to take over.

This is the fifth in our compiler series and the first on the back end. We covered the parts of the compiler that are called the front end in these posts:

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Xojo and Community Growth in 2017

2017 has been a good year for Xojo! We hit some bumps but we’re ending the year with the much-awaited Xojo 64-bit IDE released in Xojo 2017r3.
Though we didn’t have a XDC in 2017, we’re gearing up for XDC 2018 in Denver in April. This is the longest between conferences in many years and we’re seeing an increase in early registrations. If you are planning on attending, please register soon. We have sold out before!
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The 64-bit Xojo IDE

Back in 1998 when we shipped version 1 of what is now Xojo, it was a 32-bit application and has been ever since. Depending on the operating system, that meant the Xojo IDE itself had at most 4GB of RAM available to it. That would seem like more than enough for any project. However, we have some users that have really big projects. One project I know of has over 1500 project items!

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Big Transitions, Little Effort: One App’s Update to 64-bit

Our goal has always been to let you focus your energy on what makes your app unique. One of the ways we do that is by handling the nitty-gritty details of the various platforms Xojo supports. For example, you don’t have to worry about the differences in how files are accessed on Windows, Linux, macOS or iOS. We take care of that for you.

Saying all this is one thing, however, and delivering it is quite another. We’ve been through some significant technological hurdles over the years. Over the past 12 months we’ve had two big transitions. The first was support for HiDPI (called Retina on macOS and iOS) which made it possible for apps created with Xojo to support high definition screens. For Xojo users, adding HiDPI support was mostly a matter of recompiling their app. If they had pictures or icons, higher resolution versions needed to be supplied but aside from that, it was effortless.

The second big feature we’ve been working on is support for 64-bit. Integers are the issue here and are almost certainly the most common data type used in apps built with Xojo. If you have used the generic Integer type, in theory, building a 64-bit version of your app should be a simple matter of recompiling. That’s the theory. What’s the reality?

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Xojo Community Growth in 2016

As you may already know, 2016 was Xojo’s 20 Anniversary. Sitting down to write this post, I can’t help but think back to 20 years ago and starting what has now become Xojo. Most of the developer tools that were around when we started either no longer exist or are no longer published by the people who had the original vision to create them in the first place. In that respect, we are members of a very exclusive club. I’m also pleasantly surprised at how many users from way back then are actively using Xojo today. I take great pride in the fact that we have created something that has that kind of staying power.

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