The IPv6 EUI-64 format address is obtained through the 48-bit MAC address. The MAC address is first separated into two 24-bits, with one being OUI (Organizationally Unique Identifier) and the other being NIC specific. The 16-bit 0xFFFE is then inserted between these two 24-bits for the 64-bit EUI address. Running 64-bit Windows on M1 Mac with Parallels 16 AutoCAD, Revit & Gaming. AutoCAD, Revit, A Plague's Tale, Resident Evil 2 and Dead or Alive.
Are you using the Google Chrome Canary or Dev Channel on your Mac?
If you are, and you’re on compatible hardware, then I have a little surprise: Google quietly updated Chrome to a 64-bit build without you noticing!
‘Google quietly updated Chrome to a 64 bit build without you noticing!’
The switch has been a long time coming. Most recent versions of Apple’s desktop operating system no longer default to the 32 bit architecture, a move that has seen some third-party plugins for the platform, like Java 7, offered only in 64-bit versions.
Chromium developers have been working on bringing native 64 bit builds of Chrome to OS X for a while. In fact, if you use the Canary channel frequently you may have already used one, as developers often seeded builds for testing there on occasion.
Now it seems as though that testing is ready to go wider. As of Chrome version 38.0.2065.0 on OS X, 64-bit Chrome is a-go on the dev channel:
Benefits
What are the benefits of the switch? On paper: better performance and better multitasking. 64-bit builds allow Chrome to ‘address’ (read: use) more available memory on your system (assuming you have it) and perform more tasks concurrently, and faster.
Windows 64 bit Chrome builds have boosted performance by 25%, say Google, while also improving stability. Data on Mac performance has yet to filter out but it’s a promising indication nonetheless.
Getting Chrome 64 Bit Mac
On a 32-bit system? There’s no need to panic. Chromium developers have built a ‘fail safe’ into the server infrastructure that distributes updates to ensure that only compatible builds can install on compatible systems.
If you’re on a Mac I recommend rolling with the Canary channel. This installs alongside an existing version of Chrome, allowing you to use stable builds alongside it.
64-bit Mac Games
Apple began transitioning to 64-bit hardware and software technology for Mac over a decade ago, and all modern Macs now include powerful 64-bit processors that can run advanced 64-bit apps. These apps can access dramatically more memory, enable faster system performance, and take advantage of technologies that define today's Mac experience.
Apple has been working with developers to transition their apps, and in 2018 Apple informed them that macOS Mojave would be the last version of macOS to run 32-bit apps. Starting with macOS Catalina, 32-bit apps are no longer compatible with macOS.
If you get an alert about a 32-bit app
64 Bit Mac Address
You will see one of these alerts when attempting to open a 32-bit app:
[app name] needs to be updated.
The developer of this app needs to update it to work with this version of macOS. Contact the developer for more information.
[app name] is not optimized for your Mac and needs to be updated.
This app will not work with future versions of macOS and needs to be updated to improve compatibility. Contact the developer for more information.
When installing macOS, you may see a list of recently used apps that are 32-bit. You can review this list before deciding to continue installation. You may also see a prohibitory symbol over the icon of each 32-bit app in the Finder, letting you know that the app will not open.
64-bit Mac Steam
For all 32-bit apps, please contact the developer of the app to learn whether an updated version of their software is available or planned.