My understanding is that ALL the 2024 rulebooks are backward compatible, but the Journeys through the Radiant Citadel book in the store specifically has a new label across it that reads "Compatible with 2024 Core Rulebooks".

How is this compatibility different from the rest of the 2014 Core Books based volumes or is it solely a marketing thing?

thanks.

as the page is sorted by "Bestsellers" and its the last one, I have suspicions that its a marketing thing, but in the physical editions on Amazon JTTRC comes in towards the middle after Fizban's, but ahead of titles like Windemont, Bigby's and Dragonlance, so... not sure how much sense THAT makes, JTtRC was..what.. july 2022, and like 7 texts that came after don't have the banner?

there is probably a really lame or bureaucratic reason and ultimately it doesn't matter, but I'm curious.

The original statement was "compatible with all adventures".

That's the real key to what is compatible. In a real sense, that translates to everything here: https://www.dndbeyond.com/sources#Adventures

Not the stuff above it, though.

After that, there is a category of Core and a category of Expanded.

Core is the PHB, DMG, and MM.

Expanded is Tasha's, Xanathar's, MotM, Volo's, etc. 

Core is being replaced, to a degree: if a class is not found in the 2024 PHB, then you can use it going forward, shifting when they get abilities accordingly.

This also applies to the Expanded stuff.

The same applies to Species (races). 

On DDB, itself, the easiest way is to look for the Legacy tag. 

I understand what you've said, and the basic compatibility issues/expectations, but if you look at the online store in Rules Books, Adventures, Campaigns, and Everything Else, JTTRC is the ONLY product with this banner label (as far as I've seen as of this date/time).  NO OTHER product carries it, regardless of publication date or category.  THATS what I was asking about, so you haven't really answered the question asked; what is it about THIS specific book that has earned/given it this UNIQUE label that from what I can see NO OTHER book in the entire posted library possesses?  I apologize if the tone of this response is snarkier than I intend, I struggled with a way to be clear and specific obviously.

No worries about tone.

Hmm. It appears that it was the last product released before they shifted all the products that came after it to 5.5 in development.

This is a guess, of course -- the only people who can answer for real are WotC employees. 

But it came out just as they were ramping up to release stuff they had started designing with the 2024 rule books in mind -- and that's everything from July 2023 forward.

Quote from FutureSightRunner >>

( Speculation:) It could represent the cut-off declaration of what adventures might be getting the “Legacy Tag” treatment?

    That way as the completion of the new rules are finalized, work can begin on updating the expansion stuff and adding that in.

    Again (/Speculation)?

 There's no evidence that they're going to legacy-tag anything that isn't actually superseded. They're unlikely to republish any adventures just for a 2024 update. But they did legacy Lost Mine when they updated it as part of Phandelver and Below. Barring that kind of thing, don't expect any adventures to go legacy.*

I expect the MM and probably the DMG to go legacy, then the Sword Coast book. On the other hand, they haven't done it with the PHB yet.

* They might let old adventures go out of print as sales decline, but that's unlikely to affect DDB.

Looks like it WAS a bureaucratic issue... other products are now getting the label.

Sorry to bring this back from the dead...  By having this compatibility label applied, does that indicate that there are any content changes to these books such as in digital format or reprints?  I have the all of the physical books published by WotC 5e (2014) in my collection so just curious if these new labels indicate that a new reprinted physical edition - with 2024 content - was recently done. 

I'm assuming the answer is "no reprint", but just wanted to ask it to help remove all doubt on my end.

Cheers!

I don't own any adventures on beyond only rulebooks, so this is pure speculation.

As the only things that need to be "translated" or "rebalanced" are items, creatures and / or subclasses featured on those adventures. Are we getting these updated items? or it's just the same old things with a legacy tag?

 I'm also very curious as to what this 'Compatible with 2024 Core Rulebooks' label means

I am trying to find an answer to this question as well. From what I can tell, it looks like it is simply a marketing label currently, although I have not been able to test it with the Maps VTT. 

For example, if you look at the Monsters & NPCs in Appendix D of Curse of Strahd on D&D Beyond (which has the Compatible with the New Core Rulebooks label in Marketplace) and hover over or click through on Spells, they show up as the Basic Rules (2014) Legacy edition of the spell. For Baba Lysaga's special attack that summons a Swarm of Insects, it links to the Basic Rules (2014) Legacy version. The Wereraven is classified as Humanoid, as per the 2014 designation, instead of Monstrosity, as per the 2024 designation for Lycanthropes.

It is possible that if you set your campaign for 2024 (I don't know if this is a feature as I haven't used Maps, but extrapolating from Character Sheet customization options), they have programmed Maps to update to the new versions, but I don't know how likely it is that they will have done all of that work.

Does anyone have any new info on this? As far as I can tell, there is no 2024 filtering that is guaranteed to work with either the marketplace, character builder, or maps that will make it easy for new campaigns to use 2024 ruleset only. I recently had a bit of a mix up with one of my players over the use of Green Flame Blade because I failed to verify that the character builder was actually filtering out any legacy content like I told it to. I have discontinued use of the character builder because I don't trust it. But I would like to purchase new content if it was created with 2024 ruleset in mind so that I can use it in my current campaigns. Has anyone figured out a way to verify 2024 compatibility?

The character builder has a series of tick boxes to select 2024 or 2014 content. If you’re just using the newer stuff you need to tick just “Core Rules” and “Expanded Content” but ignore the “2014 Core Rules”, “2014 Expanded Rules” and “Legacy” boxes you’ll only get the stuff that applies for the new rules 

As for buying stuff if you want to be strict you can only buy stuff printed after 2025 because anything printed prior to the release of the core rules won’t be fully compatible, they can’t be because how can you be compatible with rules that don’t exist yet? Older stuff, especially adventures, are backwards compatible but it won’t be a 100% match because they’re not going back and rewriting old books (there’d be uproar if they did) 

Yep I had those options checked on the character builder but my players were somehow still able to pick spells and abilities from legacy content.

Would be nice if they posted the printing/publishing date in the marketplace or had a filtering option for it so you could tell at a glance what was considered legacy.

If your players genuinely don’t have any of the 2014 or legacy boxes ticked and are still getting access to legacy content then that’s a bug you’ll need to report on the Bugs forum but it’s more likely they just had it ticked on their character builder by mistake. It’s setting that’s each player needs to do for themselves and not something you can control centrally