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How To Change Mac Version



Tutorial: Change Mac OS X System Version. Feb 10; Justin; Tutorial, Uncategorized; OSX; 99 Replies; As I’ve said in a previous post, nearly the exact same process (that is, editing the systemversion.plist file) is used for this as for changing the iPhone OS version. Jan 22, 2012 Change the system version listed under 'ProductVersion' to whatever you desire. You should also change 'ProductUserVisibleVersion', just so that you can confirm that the edit worked later by going to the About This Mac page. (You can access 'About This Mac' by clicking the Apple icon on the upper-left of your screen.).

5 5 likes 95,175 views Last modified Apr 13, 2020 10:34 AM
  • Chances are, your Mac can run macOS Big Sur. The following models are supported: MacBook (2015 or later) MacBook Air (2013 or later) MacBook Pro (Late 2013 or later) Mac mini (2014 or later) iMac (2014 or later) iMac Pro (2017 or later) Mac Pro (2013 or later) To see which model you have, click the Apple icon in your menu bar and choose About.
  • Message effects come to Mac. Choose from effects that take up the entire screen — like balloons, confetti, or lasers — or effects that change how individual message bubbles animate. You can even send a message with invisible ink that stays blurred until you swipe over it with your cursor.
  • Jan 24, 2018 How to upgrade from Mac OS x 10.9.5 to 10.10 (required for a new invoicing programme). For whatever reason, this iMac won't accept MacOS High Sierra, even though this shows up as freely available under Software Update.

Starting with 10.7, on July 20, 2011 downgrading took an entirely new approach:


Apple introduced a restore install utility for Mac OS X 10.7 or later that boots with a command-R. Some macs older than 10.7's release

How To Change Mac Version

could get this utility through this firmware update. As indicated elsewhere on this forum, Macs that had a hardware refresh on or after July 20, 2011,

can't boot into 10.6.8 or earlier, though 10.6 server can be installed through virtualization. With each new retail release, the availability in the App Store may vary once you install an older retail online release. You may have to contact App Store billingto get an older online releaes available, or get a refund for an already previously purchased operating system that you go back to download.


Also, Apple has written these tips for those with Time Machine, wishing to restore an older versions of Mac OS X from Mavericks:


And El Capitan:


For a limited time 10.7 is available for purchase and download here:



10.8 is here:


Change the /us/ for your country's 2 letter code when you go to http://store.apple.com/ to get the download link for your country.


Macs newer than March 29, 2010, but older than July 20, 2011 could not use a 10.6 installer CD, other than the prebundled CD with them. Call AppleCare if you need that disc:



10.6 retail otherwise is available for pre-March 29, 2010 Intel Macs:


A backup is still better than having no backups, as you avoid the pitfalls of older operating systems not being able to handle newer software, or newer software not being able to run on older operating systems. 10.7 was also available for a limited time on an Apple released USB flash drive. You could custom make a USB Flash drive with the installer if you didn't install the operating system the moment the download was complete by copying it to your desktop, and then to the flash drive from the Applications folder. You could also just keep a copy of the installer outside the Applications folder and later clone backup your system to hold onto the installer. Either way the installer was tied to the AppleID that downloaded it and license limitations agreed upon there.

10.8's release on July 25, 2012, and 10.9's release on October 22, 2013 likely limited the same hardware refreshes on or after to the same downgrading options. You may not be able to operate drivers or applications that weren't downgraded and removed with the operating system, unless they were compatible with the older operating system. Check with various vendors if uncertain before attempting a downgrade.


You have one more option once backed up, before attempting a full downgrade. Just repartition your hard drive. This option is available in Mac OS X 10.6 and higher as long as your machine supports the older operating system. To repartition your hard drive, read this link



starting where it says:

Create new partitions on a disk

You may be able to create new partitions on a disk without losing any of the files on the disk. Each partition works like a separate disk.

Once you have a second partition that is large enough to install the older operating system, just install it there. Then you can use Apple menu -> System Preferences -> Startup Disk to change your active operating system. Keep in mind each partition can't get over 85% full and that each partition needs to be backed up separately.


The rest of this tip addresses downgrading 10.6.8 and earlier systems:


Downgrading the operating system is not easy without a clone backup of the same system at an earlier stage already being present.


With 10.5.1 Intel or later (including 10.6 to 10.6.8) to 10.5:


1. Verify you made a Time Machine backup before you upgraded to 10.5.1 or later.
*2. Boot off the Leopard installer disk. Note for Macs newer than the October 26, 2007 release of 10.5, a later 10.5 installer disc may be needed:

- 10.5.1 retail was released November 15, 2007

- 10.5.4 retail was released June 30, 2008

- 10.5.6 retail was released December 15, 2008

Macs generally won't boot an earlier retail version of Mac OS X than their release date, and they won't boot a system specific (model labelled) or Upgrade or OEM disc unless designated for their model and vintage of that model.

3. Select the installation language.
4. Go to the Utilities menu and use the Restore from Time Machine backup to restore to your Time Machine state before you installed 10.5.1.


This will only work, if you have no data to salvage from 10.5.1 or later.


* With Mac OS X 10.7 and 10.8 a Lion recovery assistant helps you with this function.

Note, you can also when you buy 10.7 or 10.8, make a self extracted backup of the full installer on a Flash drive. Several places on the net

offer solutions for that to work on the details before you download from the Mac App Store. Apple also for a limited time sold a USB Flashdrive version of 10.7, that will work on pre-10.7 (July 20, 2011) machines that meet the qualifications on the user tip for 10.7 installation.


For those with machines released after 10.8 (July 25, 2012), only the recovery assistant, may work and it may not be possible to use another 10.8 installer used on a 10.7 machine and transfered to a Flash drive. Of course all this requires any such installer follow the license agreement of the said installer for the number of installations.


_____

With:


10.6 or later
From (10.5 Intel through 10.5.8) to (10.4.4 through 10.4.11)
From (10.5 PowerPC through 10.5.8) to (10.0 through 10.4.11)
From (10.4 through 10.4.11) to 10.3
From (10.3 through 10.3.9) to 10.2
From (10.2 through 10.2.8) to 10.1


Either restore from your backup or:


1. Backup your existing data by cloning it to external hard drive(s) at least twice.


2. Write down registration codes for installing applications.


3. Erase and install the operating system with none of the backups connected to the machine during the erase and install process, and no peripherals other than display, keyboard and mouse attached.


4. Restore user documents that are capable of being downgraded.
Ask on Discussions if the applications you use can be downgraded before attempting this.


5. Install from the original installation disks which shipped with your machine (Mac OS X 10.7 Lion has a Recovery Assistant instead of discs, if your Mac shipped with Lion) additional applications which didn't ship with the operating system:



6. Install from the third party CDs and downloads any other applications.


--------------------------
Finally, users downgrading from 10.3.x to another 10.3.x, and 10.2.x to another earlier 10.2.x can use archive and install:



How To Change Mac Location

Note:


1. Apple applications left behind from a newer installation may not work in an older installation on an archive and install.


2. Installation from restore disks are required if your Mac is


Backup your mac with time machine.

- - Intel and shipped with 10.4.4 through 10.4.11.
- - The install you are attempting is the minimum that Mac can run: http://support.apple.com/kb/HT2191
- - The retail installation available is older than the Mac itself.

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Click the button to download the latest version of Visual Studio 2019 for Mac. For information on the system requirements see the see Mac System Requirementsand Mac Platform Targeting and Compatibility guides.

For instructions on installing and updating Visual Studio 2019 for Mac, see theInstall Visual Studio for Mac guide.

To learn more about other related downloads, see the Downloads page.

What's New in Visual Studio 2019 for Mac

Visual Studio 2019 for Mac Releases

  • December 1, 2020 - Visual Studio 2019 for Mac version 8.8.3
  • November 24, 2020 - Visual Studio 2019 for Mac version 8.8.2
  • November 19, 2020 - Visual Studio 2019 for Mac version 8.8.1
  • November 10, 2020 - Visual Studio 2019 for Mac version 8.8

Visual Studio 2019 for Mac Blog Posts

The Visual Studio Blog is the official source of product insight from the Visual Studio Engineering Team. You can find in-depth information about the Visual Studio 2019 for Mac releases in the following posts:

Release Highlights

  • Visual Studio for Mac 8.8 adds preview support for Custom .NET Core templates added with dotnet new (Preview features can be enabled in Preferences > Other > Preview Features).
  • Visual Studio for Mac 8.8 adds support for debugging Blazor WebAssembly projects.
  • Visual Studio for Mac 8.8 adds support for accessing Azure DevOps NuGet package sources using the signed in account without the need to use a personal access token (PAT).
  • Visual Studio for Mac 8.8 now supports running on the macOS Big Sur developer preview. See Known Issues for additional information.
  • Visual Studio for Mac 8.8.3 or newer now has full accessibility support enabled by default.
  • We added functionality to Visual Studio for Mac to warn users when low disk space will degrade the experience.

Known Issues

Refer to the Known Issues section.

Feedback and Suggestions

We would love to hear from you! You can report a problem through the Report a Problem option in Visual Studio for Mac IDE.You can track your feedback, including suggestions, in the Developer Community portal.

Release Notes

Visual Studio 2019 for Mac version 8.8.3 (8.8.3.16)

How To Change Mac Homepage

released December 1, 2020

General

  • We fixed several issues with reliability and performance.
  • Under certain circumstances it was not possible to enable full accessibility support using VoiceOver. We enabled full accessibility support by default and updated the Visual Studio for Mac accessibility documentation.

Version Control

  • We fixed an issue where Visual Studio for Mac got stuck at 'Updating version control repository' after switching branches.

Web and Azure

  • We fixed an issue where publishing ASP.NET Core 5.0 projects to Azure failed with an 'HTTP Error 500.31 - ANCM Failed to Find Native Dependencies' error.

Visual Studio 2019 for Mac version 8.8.2 (8.8.2.41)

released November 24, 2020

General

  • We updated .NET Core to 3.1.404.
  • We updated the F# compiler to 5.0.

Debugger

  • We fixed an issue blocking operations when multiple watches are selected in the watch tool window.
  • We fixed several issues causing the wrong value to be copied or pasted within the watch tool window.
  • We fixed an issue where it was not possible to rename a watch while debugging.

Installer

  • We fixed an issue where the Installer was not able to download .NET Core and the installation failed.

Shell and Tools

  • We fixed an issue where the Errors tool window didn't remember toolbar button settings.

Source Code Editing

  • We fixed an issue where F# 4.6 language features don't work on VS for Mac (Stable or Preview).
  • We fixed an issue where member _.method in F # was not recognized correctly.
  • We fixed build issues causing FS0010 errors with new F# Web projects.
  • We fixed an issue where Find References is not working.
  • We fixed an issue with the Rename functionality not working correctly.
  • We fixed an issue with missing support for FSharp.Core 4.7.
  • We fixed various issues with GB18030 encoding support.

Visual Studio 2019 for Mac version 8.8.1 (8.8.1.37)

released November 19, 2020

General

  • We fixed several issues with reliability and performance.

Debugger

  • We fixed an issue where the Exception window appears outside of the desktop.
  • We fixed an issue where the Set Next Statement command failed with an error depending on where the editor caret was placed.

Shell and Tools

  • We fixed an issue where loading a solution failed after closing VS for Mac in full screen mode on Big Sur.
  • We fixed the code search in the assembly viewer.

Web and Azure

  • We fixed an issue where loading Blazor Web Assembly projects failed if the project path contained spaces.

Xamarin

  • We fixed an accessibility issue in the XAML Previewer where a decorative image was erroneously being anounced as 'image' by VoiceOver.
  • We fixed an accessibility issue in the XAML Previewer where unnecessary content was being announced by VoiceOver when navigating to the 'Get started with XAML hot reload' link.
  • We added support for Xcode 12.2.

Visual Studio 2019 for Mac version 8.8 (8.8.0.2913)

released November 10, 2020

Note

This release of Visual Studio for Mac now supports running on the macOS Big Sur developer beta builds. If you're already on Big Sur and can't use the updater, visit the Visual Studio for Mac website and download the installer.

New Features

Debug Blazor WebAssembly projects

Visual Studio for Mac now includes full support for debugging Blazor WebAssembly projects, giving you the option to set breakpoints, watches, navigate your code using step and skip commands, and more.

For more information on debugging in Visual Studio for Mac, see Debugging with Visual Studio for Mac.

Web and Azure

  • We added support for .NET 5 preview 8.
  • We added integrated support for accessing NuGet Azure DevOps package sources using the signed in account without requiring a personal access token (PAT).

Bug Fixes

Debugger

  • We fixed an issue where the debugger would prefer an imported class over a local variable with the same name.
  • We fixed a potential crash/hang after terminating the debugger.
  • We fixed an issue where local variables were not evaluated when debugging a Blazor application with .NET 5.

Project System

  • We fixed an issue that resulted in an empty properties pad for files when loading AddIn projects.
  • We fixed an issue that prevented users from canceling a solution load operation.
  • We fixed an issue where the Android build process never stops.
  • We fixed an issue where renaming a file with 'Show All Files' enabled in the Solution window added the file twice and might have caused a hang.
  • We fixed an issue with VS for Mac setting a different FrameworkSDKRoot.
  • We fixed an issue where creating a new project folder with a single character failed with an error.
  • We updated MSBuild to 16.8 RTM.

Shell and Tools

  • We increased the speed of the find in files functionality.
  • We fixed an issue causing erroneous exceptions to be logged when deleting unsaved files from a project.
  • We fixed an issue resulting in multiple searches and unresponsiveness in the search experience.
  • We fixed an issue where Visual Studio is unable to find files/classes included into a multi-target SDK style project.
  • We fixed an issue where the directory path for find in files was not set correctly.
  • We fixed an issue that prevented users drom opening assemblies in the Assembly Browser.
  • We fixed an issue that caused files to open in Visual Studio Code instead of in the hex editor when choosing to open in the hex editor.
  • We improved the performance of the Assembly Viewer.
  • We have ported the Assembly Browser to the new Editor.
  • We have reimplemented the Errors pad and moved the build output to a separate pad.
  • We have improved overall performance and reliability.
  • We replaced the 'Pad' terminology with 'Tool Window' throughout the IDE and updated the top-level View menu.
  • We fixed an issue where the content of the 'Reference' dialog was not announced in proper sequence with VoiceOver.
  • We fixed a potential hang in the Assembly Browser.
  • We fixed an issue with encoding inside the integrated Terminal.
  • We fixed an issue where 'Find' in the 'Replace in Files' dialog replaced the found text.
  • We fixed an issue where Searching in a Directory failed after the second use.
  • We updated NuGet to 5.8 RC.
  • We fixed an issue where it was not possible to type (special) characters in the VS console while pressing the option-key.
  • We fixed an issue where alerts were not clickable with the mouse on macOS Big Sur.

Source Code Editing

  • The F# editor and language service have been updated to use the same backend as Visual Studio (Windows). This fixes a number of issues previously reported on Developer Community including:
    • F# multiply operator as a function wrongly affects color of code after.
    • F# 4.7 language features don't work.
    • Undo doesn't work.
    • Three double quotation marks are placed instead of two.
    • F# 4.7 isn't supported.
    • Editor fails on matching quote insertion.
  • We fixed an issue causing the default key binding for 'Navigate To..' to no longer work with the French keyboard.
  • We fixed a problem where new F# projects would not restore and build due to the FSharp.Core NuGet package being unavailable.
  • We have fixed an issue where an Enum could not be used as a nullable type in generic interfaces.
  • We fixed an issue where Design-time error highlighting and Quick Fix suggestions stopped working.
  • We fixed an issue with Red underlines not being shown on syntax errors.
  • We fixed an issue where inserting code snippets into a C# file failed.
  • We fixed an issue where EventHandler completion didn't work.
  • We fixed an issue with YAML support.

Test Tools

  • We fixed an issue where Running unit tests from the context menu was way slower than from the Unit Tests pad.

Version Control

  • We fixed an issue where there was odd behavior when copying files under source control.
  • We fixed an issue that could cause hangs when using Git version control.
  • We fixed an issue causing version control commits to fail if Git reported fatal: LF would be replaced by CRLF.
  • We fixed an issue that disabled view history when a file that's not tracked or a project is selected in the solution pad.
  • We fixed an issue where Git integration on Visual Studio for Mac is not working.
  • We fixed an issue where deleting a file from project rolls back messing up the Source control.
  • We fixed an issue where openinig a project or switching branches on console does not always update the current branch in the project browser.
  • We fixed an issue that could result in a doesn't point at a valid Git repository or workdir. error message when working with Git.
  • We fixed an issue where stashing errors were not handeled properly.
  • we fixed an issue with broken selection buttons in the 'Review and Commit' view.
  • We fixed an issue where the Git configuration dialog blocked use of the IDE and could not be closed.
  • We fixed an issue where the status of a copied then pasted file was not updated properly.
  • We fixed an issue where an error was shown after copying a file if Git was not installed.
  • We fixed an issue where deleting a new file under a newly added folder deleted the empty folder as well.

How To Change Mc Version

Web and Azure

How To Change Mac Version

  • We fixed an issue where a new F# test project will display errors and warnings.
  • We fixed an issue with solution file generation that caused a compatibility problem with Visual Studio on Windows.
  • We fixed an issue where .razor files would incorrectly show a “Using directive is unnecessary' error.
  • We fixed an issue where IntelliSense for classes from a new Razor class library project were not available in .razor files.
  • We fixed an issue preventing Azure subscriptions being found when publishing to Azure Publish to Azure.
  • We fixed an issue where Azure subscriptions were not found.
  • We fixed a crash in the Razor editor.
  • We fixed an issue with breakpoints not hitting when debugging a Blazor WebAssembly Application.
  • We have added a preview support for Custom .NET Core templates added with dotnet new.
  • We fixed an issue where a Blazor WebAssembly project was not recognized as such with .NET 5 and the Browser selection was missing.
  • We fixed an issue where an invalid development certificate caused an unrecoverable hang.
  • We fixed an issue where IntelliSense shows the OpenAPI client after the OpenAPI service was removed.
  • We updated .NET Core to 5.0.100 and 3.1.403.

Xamarin

  • We fixed an issue that erroneously changed the simulator to iPad Pro for the designer if Xcode was used to open and add layouts to the Storyboard file.
  • We fixed an issue where users were unable to load Storyboards in Visual Studio for Mac.
  • We fixed an issue that resulted in Storyboard errors.
  • We fixed an issue where adding an Apple account for Xamarin.iOS is broken.
  • We fixed an issue resulting in failure to add an Apple developer account with two step authentication.
  • We fixed an issue preventing pairing with Visual Studio.
  • We fixed an issue where the Storyboard editor would not start.
  • We updated the Android SDK Tools path to support the new 'cmdline-tools' path.
  • Hot reload updated the minimum required Xamarin.Forms version to 4.6.0.923 when using incremental.
  • We fixed an issue where Xamarin Forms Hot Reload caused the iOS Simulator to come to foreground.
  • We fixed an issue with the iOS Simulator Window stealing focus multiple times.
  • We fixed an issue with Vector Images not appearing in Assets.xcassets.
  • We fixed an issue where the target framework of a Xamarin.Mac full framework project kept switching back to Xamarin.Mac Modern.
  • We fixed an issue where VS for Mac was removing some default properties from Xamarin.Android projects.
  • The Android SDK manager will now prompt to install Android API 28 if it is not already installed to ensure compatibility with the Xamarin.Forms templates.
  • We added support for Xcode 12.1.

How To Change Mac Version

Other

  • We improved startup performance of the IDE.
  • We improved the performance of closing a solution.
  • We fixed an issue where vstool would not return the exact id of an extension which can then be used for disabling/enabling the extension.

Known Issues

The following is a list of all existing known issues in Visual Studio 2019 for Mac version 8.8:

  • After installing the latest .NET 5 SDK, developers of .NET Core 3.1 apps might see an error indicating 'The ASP.NET Core developer certificate is in an invalid state.'. Running dotnet dev-certs https --clean then dotnet dev-certs https --trust from the Terminal will fix the issue.
  • Loading Blazor WebAssembly projects with .NET 5.0 RC1 is not yet supported.
  • In rare cases, it's possible to be up to date with everything but the .NET Core 3.1.300 SDK. If you enter into this configuration and update to .NET Core 3.1.300 using the updater, the notification to update the .NET Core SDK will not disappear until the IDE is restarted.
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