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macOS 12 Monterey Third Party Product Compatibility Info

Article ID = 263
Article Title = macOS 12 Monterey Third Party Product Compatibility Info
Article Author(s) = Graham Needham (BH)
Article Created On = 6th December 2021
Article Last Updated = 5th September 2022
Article URL = https://www.macstrategy.com/article.php?263

Article Brief Description:
A list of information relating to third party software products and their compatibility with macOS 12 Monterey

macOS 12 Monterey Third Party Product Compatibility Information

Warnings!
  • Older Mail application "plug-ins" are now deprecated and will stop functioning in a future version of macOS
  • macOS 12.3 and later removes support for kernel extensions used by Dropbox and Microsoft OneDrive - if you use these applications update to the latest versions before installing Monterey. Microsoft has in-depth information on their new "Files On-Demand" feature.
  • macOS 12.3 and later removes Python 2.x - use Python 3 instead (once macOS 12.3 is installed, run the stub /usr/bin/python3 in Terminal which will prompt you to install the latest Xcode developer tools that includes Python 3.x)
  • macOS 12 removes PHP - use Homebrew to install it or install via a third party software stack such as MAMP/MAMP PRO
  • Monterey does not support 32-Bit Applications
  • Monterey does not support legacy media formats
  • Monterey does not support legacy System/Kernel Extensions (KEXTs)
  • Monterey does not support installing on and booting from FireWire storage
  • Monterey does not support Dashboard applications/widgets
  • Monterey does not support Rosetta/PowerPC software
  • Monterey no longer trusts TLS certificates signed with the SHA-1 hash algorithm
  • Monterey has a dedicated and "signed" system volume - third party backup/cloning/disk repair software should be checked and updated/upgraded if necessary to work with this version of macOS
  • Monterey disables legacy smart card support that uses TokenD
  • Monterey changes the default shell to Zsh (from Bash)
  • VPN connections via L2TP over IPSec now require "HMAC-SHA-256" security at the third-party server end - make sure your VPN server is compatible!
  • Safari 15 in Monterey does not support any legacy NPAPI browser plug-ins including Adobe Flash
  • Safari 15 in Monterey does not support older .safariextz packaged Safari Extensions - you should check whether the developer has created a newer/updated "Safari App Extension" version which will be available via the Mac App Store
  • Monterey has an OS version of 12.x instead of 11.x or 10.x - this could affect some older software installers and scripts if they check the OS version incorrectly
Apple File System (APFS)
Monterey uses a low-level file system called Apple File System (APFS) - this could affect many third party software products especially disk utilities that work directly with the file system e.g. DiskWarrior and TechTool Pro along with products that share/serve files over a network. We have a separate article with information about APFS and some frequently asked questions.
Third Party Apps/Hardware Specifically NOT Compatible With APFS
Gatekeeper
Some (older) software may not install or run on Monterey due to the Gatekeeper security feature. However, it will work, you just need to temporarily bypass gatekeeper if you are sure the software is trusted and safe - see our Gatekeeper article for more information.
System Integrity Protection (SIP)
Monterey includes a low-level security technology called System Integrity Protection (SIP) which prevents the modification or removal of certain system files - this could affect third party products that try to install/modify files/folders at the system level. We have a separate article all about SIP.
HiDPI
If you have a HiDPI compatible monitor connected e.g. Retina Display, UltraHD, 4K, 5K, Monterey will try to run applications in HiDPI mode on them. Older applications (written before HiDPI was available) may have problems with this. It is possible to run older, individual applications in "low resolution" mode (Get Info on the application in the Finder and tick "Open in Low Resolution" - if that option is not there then you can't).
Products Specifically NOT Monterey Compatible (including earlier versions thereof)
See also, our list of 32-bit applications
Companies
Printer And Scanner Manufacturers/Drivers
Official Apple list of printer and scanner drivers included with macOS - As of October 2018, this list is no longer updated!
Individual Products
If a product is not listed above it doesn't mean it does or doesn't work with macOS 12 Monterey. Make sure you are running the latest version of the software and if you still have problems check the developer/manufacturer web site. If you spot any Monterey compatibility information online that we don't have above be sure to let us know the link/URL. In addition:
  • Maths/chemistry/scientific users should also check out this blog post that lists compatible/incompatible Monterey software.
  • Musicians should also check out this web page that lists compatible/incompatible Monterey software.
  • You could also check out this web site that lists compatible/incompatible Monterey software.
Network Attached Storage (NAS) Products And Servers For Time Machine Backups Over SMB
macOS 12 Monterey supports Time Machine backups over SMB. The basic NAS and Server requirements are:
  • SMB protocol version 3.x, including SMB 3.x signing
  • Handling of SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2 requests, including the Timeout field
  • Handling of SMB2_CREATE_REQUEST_LEASE_V2 requests
  • Handling of SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2 requests
  • Support for Bonjour discovery
  • Support for Apple’s F_FULLFSYNC extension to the SMB2 FLUSH command
Apple has detailed NAS and Server SMB requirements/technical information on their Developer web site. Products known to support Time Machine over SMB:
Network Attached Storage (NAS) Products And Servers For Time Machine Backups Over AFP
AFP (Apple File Protocol) is deprecated but still works in Monterey (as a client connecting to an AFP server) and supports Time Machine backups over AFP. NAS and Server products must support AFP protocol version 3.3 or later (introduced with OS X 10.7 Lion) if they are to be used for Time Machine backups. If you use NAS products that utilise open source software (FreeNAS and/or Netatalk) - FreeNas must be at least version 8.1 and Netatalk must be at least version 2.2.0. Specifically: Apple has detailed NAS and Server AFP requirements/technical information on their Developer web site.

Article Keywords: macOS 12 Monterey 1200 third 3rd party software product compatibility

This article is © MacStrategy » a trading name of Burning Helix. As an Amazon Associate, employees of MacStrategy's holding company (Burning Helix sro) may earn from qualifying purchases. Apple, the Apple logo, and Mac are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.

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