[Feature]: A couple niche but missing shapes

[Gim1i]

Describe the feature

I've been building a factory and heavily utilising this mod and I've found a couple shapes missing that could be cool to see. Those are:

• A halved version of the both framed sliced stairs variants
• Same thing but for the vertical framed sliced stairs
• A top and bottom half wall (Might be hard to do if you want it to change next to a block like normal walls)
• A halved framed divided slab

[Gim1i]

Oh and do you backport new shapes to older versions? I'm playing on 1.20.1 right now

[Gim1i]

Found another 3:

• Framed sliced stairs variants and framed divided stairs without one of the top 2 corners (potencialy doable without a new block if you can get stair corner mechanics working for combo blocks)

[XFactHD]

• Halved versions of all three sliced stairs variants and the slab edge (effectively a half version of the divided slab) and corner pillar are already planned (see [Feature]: divided corner pillar and sliced half stairs #458)
• Half-height versions of the wall seem weird to me, I'd be curious what those would be used for
• In 1.21.1 and later versions all stairs blocks with two camos have full stair connection functionality. Backporting this is not possible though

As for backporting in general: 1.20.1 no longer receives any feature updates, only critical fixes, and once 26.1 releases it will be dropped entirely and 1.21.1 will be reduced to only important fixes and minor features because I do not have the time to maintain three versions with very different codebases.

[Gim1i]

I can understand dropping older version support especially for 1.20.1 as most mods are going to 1.21.1, but why drop 1.21.1 for 26.1? I doubt most bigger mods will move to a newer version (than 1.21.1) for some time as most of the recent updates are really small so aren't likely to be worth it to be updated to (along side the back-end updates each update making even harder).

The half pillar is for very specific designs where you wish to have a pillar go to a single full-block but realize later in the build that it would look so much better half a block shorter. There's def some other uses too (like 1.5 block tall prison bars might be a good one) but that't main thing I wanted to use them for.

[XFactHD]

26.1 is gaining a lot of traction at the moment and has a good chance of becoming the "next big version". 1.21 is getting close to two years old, Minecraft has been getting lots of improvements under the hood in the meantime (some of which are very benefitial for FramedBlocks) and dealing with the same old mod codebase with little space for fundamental improvement due to API stability is frankly getting really boring.

As for the half pillar: do you need specifically a half-height wall including the connection behavior or do you just need a half-height variant of the Framed Pillar?