what was in the last Monterey update

Apple publishes their regular updates too. Here:link-> Apple security updates - Apple Support

For the Beta as it's considered confidential, the updates and release notes are published in the developer forums only. I doubt Microsoft publishes beta updates out in the wild and not just in the Beta locations for them.

Link-> https://developer.apple.com/documentation/macos-release-notes/macos-12_1-release-notes

If you are running the Beta, then you should know this, as its made perfectly clear when you join it.

Betas cannot be discussed here. They are considered Confidential as per the NDA you agreed to when signing up for it.

If you need to know what changed in the Beta, then use the Developer forums.

There is no support or info for Betas here in the public forums.

https://beta.apple.com/sp/betaprogram/faq

Is the public beta software confidential?

Yes, the public beta software is Apple confidential information. Don’t install the public beta software on any systems you don’t directly control or that you share with others. Don’t blog, post screen shots, tweet, or publicly post information about the public beta software, and don’t discuss the public beta software with or demonstrate it to others who are not in the Apple Beta Software Program. If Apple has publicly disclosed technical information about the public beta software, it is no longer considered confidential.

Read our Terms for full details

click here-> About the security content of macOS Monterey 12.0.1 - Apple Support

iMac 21.5″, macOS 12.1 BETA or macOS 12.0.1 which is the First and Only Publicly Release version ?

What's new in the updates for macOS Monterey macOS 12.0.1

Asta123 wrote:

iMac 21.5″, macOS 12.1

Thanks, but not applicable. I as trying to find out exactly what was changed by the last update received.

Apple makes it very clear Betas are offered as is, and there is no support for them outside of the Feedback Assistant App. https://beta.apple.com/sp/betaprogram/submitting

You have other options—

https://developers.apple.com/forums/tags/macos

Apple Seed Discussions

https://appleseed.apple.com/discussions/forums/49882/page_for_topic/89682

Have never ever done Beta Testing with MS but surely they would have Non Disclosure Agreement ( NDA ) at regardless where one actually read all the fine print, would still be liable for Damages if the Confidential Information was disclosed.

Asta123 wrote:

what was in the last Monterey update?

macOS 12.0.1

Keep your Mac up to date - Apple Support

Monterey 12.1 is currently being tested and should be publicly available in the not too distant future.

- Pie Lover

Welcome and thank you too.

If we wait a bit longer ?? - we may find out was has changed in the Release version of Monterey 12.1

Yes. 12.1 is Beta. You only get Beta updates when you install the Beta. There's no way you did not know you were running a Beta as it requires many steps to actually install it.