1st 2025.3 snapshot - Minecraft 1.21.8 support

1st 2025.3 snapshot - Minecraft 1.21.8 mod maker

The 1st MCreator 2025.3 snapshot is available, supporting the latest Minecraft version. It also contains many other improvements and bug fixes.

3 Minecraft versions?

As we often do when porting to a new Minecraft version, the 1st MCreator 2025.3 snapshot supports Minecraft 1.21.1, Minecraft 1.21.4, and Minecraft 1.21.8 at the same time. In the next snapshots and in the full release, we will only support two versions.

Snapshot changelog

This is a full changelog of this snapshot with more notable changes highlighted with bold text.

Updated NeoForge for 1.21.4 to 21.4.145
Updated NeoForge for 1.21.1 to 21.1.190
Minor UX improvements and standardizations
Workspace file browser now retains expansion state after search is completed
Dragging the mouse while placing the component now enters resize mode in the GUI editor
Added Minecraft resource pack generator for 1.21.8
Added base support for NeoForge 1.21.8
Added Minecraft data pack generator base for 1.21.8
[A 1.21.x] Added new Minecraft blocks, items, and entities to data lists
[DP 1.21.8] Added support for: functions, advancements, biomes, damage types, dimensions, enchantments, loot tables, recipes, structures, features
[NF 1.21.8] Added support for: key bindings, variables, global triggers, banner patterns, damage types, tags, advancements, enchantments, functions, loot tables, recipes, structures, features, commands, custom code, sounds, paintings, potion effects, particles, potion items, attributes, game rules, villager professions, item extensions, armor, OBJ models, JSON models, Java models, creative tabs, projectiles, villager trades, biomes, dimensions, fluids, tools, overlays, GUIs, items, plants, procedures, living entities, blocks
[Bugfix, NF 1.21.1] Non-food items with eat or drink animation emitted eating sounds
[Bugfix] Certain parameters of the quick ore pack and wood pack tools were set incorrectly
[Bugfix] Vanilla entries in custom game event tags did not work correctly
[Bugfix] Dragging the mouse while placing a new GUI component placed it at the wrong location
[Bugfix] If the Blockly editor crashed while saving, the block assembly was lost and became invalid
[Bugfix] Contents of certain selector dialogs did not get updated in all cases
[Bugfix] Custom GUI image button display condition did not pass world coordinates
[Bugfix] Quotation marks in living entity text synced data default value caused build errors
[Bugfix] An exported mod file was generated even if the workspace build failed
[Bugfix] Workspace file browser did not refresh in some cases
[Bugfix] Continue/break loop procedure blocks did not work with certain iteration blocks
[Bugfix] Structure mod element did not work in data pack workspace types
[Bugfix] Some other minor fixes and improvements

A snapshot download is possible on the Download page under the Snapshot downloads section.

Make sure to download and install the pre-release so you can test it out. This way, we can make sure the release can be as stable as possible. Leave a comment with your feedback on the update below. Stay tuned and keep on modding!

Comments

Please open a bug report on GitHub and include a screen recording of the issue you have. Thanks!

I didn't report a bug, I asked that fix your Mod Creator

This is a bug report if you think something needs to be fixed. I recommend you open a bug report on GitHub and include a screen recording of the issue you have.

I told you it was not a bug, it was just only a Suggestion to update your MCreator

Why is it impossible to change size scale of mob model in game with procedure blocks, for instance I want my mob to decrease in visual size if it's health less than 50 or smth like that

You can do that. On first living entity page, you can set scale to be set by procedures. This feature exists for many versions

ok it works, thanks, but I have another problem, I created my own custom glass block and when I turn on Smooth Shading option in game it has ugly shadow inside, that isn't suppose to happen, vanilla glass doesn't have it, how do i remove it and make the block look similar to glass, image link https://imgur.com/gallery/strange-shadowing-AH1F2y2

Probably light opacity. If not that, I recommend opening forum topic

light opacity was set to 0, it's not that, I open forum topic then

ok I fixed it but you may want to add a check box to block properties tab like is the block glass or should it have shading smth like that, it should simply remove unnecessary shading

Fix bugs with forge plugin 1.20.1 and also ported it to 2025.3

If we port to 2025.3 depends on time and amount of communiy support such as PR reviews and donations.

As a free project, we have limited resources on what can and can not be done

There is a bug - when I try to open a locked recipe mod element in the code editor, absolutely nothing happens. Even when I press "open/edit", nothing appears.

This seems to only happen with locked recipes - I can still open normal recipes in the code editor.

Please open a bug report on our github. Include steps to reproduce or even better a zip of workspace with this problem. Thanks!

Please add a trigger block that will allow you to create holograms.

Holograms is not a standard system in the game at this time that could be extended

Yay!!!
Now please update Forge to later version I BEG YOU!!

From Minecraft 1.21.1 on, NeoForge is the modding platform of the choice for the vast majority of the mods. Please check popular mod sharing platforms for stats on number of mods for each modding API for 1.21.1 and newer

just checked and while items support custom 3d item models in hand and in inventories, the blocks do not. the only option for blocks is to choose an item texture, this should also include a item model to select for the block for inventories and in hand.

For this specific edge case, disable block item and instead make custom 3D model of item and place the block on right click of said custom item

FORGE 1.21.4 PLEASE :(