Expanded Building

🏗️ Expanded Building 1.1.1

🛡️ Breaking a block while planning could destroy what was inside it. An AE2 drive came back without its storage cells, a sign came back blank. This release fixes that for every mod – and adds Minecraft 26.3.

💾 Block data now survives planning

Planning remembered each position’s block and nothing else. That is enough for stone and stairs; everything with data inside came back empty once planning ended. We reproduced it with the real AE2: a drive holding a storage cell, broken while planning – the drive came back, the cell was gone. Drops are swept off a planning site, so the cell was not lying around somewhere either. A sign lost its text the same way.

Vanilla chests were only safe because breaking a filled chest was already refused – but that check only recognised vanilla containers, and a mod’s storage is not one.

• ✅ The complete block data is kept and written back with the block: when planning is finished, when it is cancelled, when a pasted blueprint is moved, when a side effect outside the site is rolled back, and when a finished plan is reopened. Inventory, energy, settings, text – the whole thing, not a guess at which part matters. That is the only rule that holds for mods nobody has heard of.
• 💥 A crash mid-planning restores it too. The planning journal now carries the block data. Journals written by older versions still load.
• 📦 Mod storage counts as storage. Whether a block holds items is asked through the loader’s own item API – Fabric’s ItemStorage, NeoForge’s item capability, Forge’s ITEM_HANDLER – not just vanilla’s container. A filled AE2 drive can no longer be broken while planning, and the builder leaves filled storage standing when he clears a site instead of spilling it on the ground. Empty storage behaves like any other block.
• 🔒 Blueprints still never carry block data. A blueprint describes what to build; what used to sit in somebody’s chest is not part of that – and would otherwise be a way to copy items.

🔌 AE2 and other mods

AE2 blocks could already be planned and still can: drive, controller, interface, pattern provider, energy cell, crafting unit, inscriber, charger, sky stone chest and the rest, all tested with AE2 26.1.11.

Cables and parts cannot be planned. They are not blocks themselves, and what a cable bus holds lives only in its block data, which a blueprint deliberately does not store. The message you get now says exactly that, instead of pointing at doors and chests.

🆕 Minecraft 26.3

• ✅ Fabric and NeoForge for 26.3. NeoForge has only published a beta build for 26.3 so far (26.3.0.1-beta).
• ⏳ Forge 26.3 is ported and waiting: Forge has not released a build for 26.3 yet. It follows as soon as it does.
• ⌨️ 26.3 renumbered every key code. The preview keys (place, rotate, raise, lower, cancel) keep their usual defaults on 26.3.
• 🛏️ The new straw bed costs one bed in a blueprint, not two, and the builder places both halves.

⬇️ Downloads

For Minecraft 26.3 (Fabric, NeoForge), 26.2 and 26.1.2 (Fabric, Forge, NeoForge). Requires Java 25.