Photoshop elements upgrade licene 2023 t0 2024: is 2023 still licensed ?

Thanks, @Jeffrey_A_Wright, for the more complete explanation.  It will help us give better advice to users on this forum.  Clearly, there will be situations where I will recommend that the user not bother with the discounted upgrade.

@FrankFOS, just to confirm the answer to the question you posed in the title of your post, each version of Elements works independently of another.  Like Michel, I currently have Elements versions 4, 6, and 10 through 2024, all activated and working on my current machine.  Versions 4 and 6 were probably upgrade versions.  Not sure about that.  But I have never heard of any user not being able to use a prior version when purchasing a discounted upgrade.  I still don't know the answer to your real question.

I'm sorry @Jeffrey_A_Wright.  I understand that your posted comment indicates that Adobe wants Elements upgrade discount purchasers to only use the new version on a previously licensed machine.  But other than the dozen or so potential purchasers who may see this post, I know of nothing in the publicly available information that discloses that fact.  The link you have provided does not. 

I have just skimmed through my Elements 2024 License Agreement and the only provision that may remotely involve this question says the following:

5. Updates.

If the Software is an Update to a prior version of Adobe software (the “Prior Version”), then Customer’s use of this Update is conditional upon its retention of the Prior Version. Therefore, if Customer validly transfers this Update pursuant to Section 4.6, the Customer must transfer the Prior Version along with it. If Customer wishes to use this Update in addition to the Prior Version, then Customer may only do so on the same Computer on which it has installed and is using the Prior Version. Any obligations that Adobe may have to support Prior Versions during the License Term may end upon the availability of this Update. No other use of the Update is permitted. Additional Updates may be licensed to Customer by Adobe with additional or different terms.

We are not talking about UPDATES here.  We are talking about UPGRADES.   And that is the term that is consistently used in your post and the linked pages you have given.

@Jeffrey_A_Wright:

@Peru Bob and @John Waller can't both be right.  The issue is whether the user who upgrades can continue to use the qualifying product on two machines and the upgrade product on two other machines.  The HelpX document you link does not explicitly answer that question.

It is my understanding that the two versions are independent of each other and that two activations for each are allowed, the only difference being a price break and that the newer version is not eligible for a license transfer.

@Jeffrey_A_Wright  can you please clarify?

. . .  The full version is usually only about $20 more than the upgrade version.

In terms of licensing, when you purchase an upgrade you still have one license with two serial numbers. The 2024 serial number is tied to the 2023 serial number on the same license. That's why you get discounted pricing for an upgrade compared to a full version.

When you enter the 2024 upgrade serial number on a machine where 2023 is not already installed, the installer will ask for a serial number from a previous qualifying version. That is your 2023 serial number,

So 2 machines in total.

To use 2024 on different devices to 2023, you need to buy a Full Version of 2024. Then you have two licenses and 4 activations in total. Then you can have 4 devices in total,

yes to everything.

Each version is it's own installation.