WorldEdit

Running a Bukkit(/Spigot/Paper) server? Get WorldEdit from here instead: https://dev.bukkit.org/projects/worldedit

Changes in 7.4.0 Beta 3

• Added a //replacebiome command to replace biomes in a selection by a given mask
• Improved reliability of tree generation systems, to attempt to partially mimic old functionality
• Fixed an issue where the revolve command can be off centre in some situations
• Tweaked block property system to reduce memory usage and improve performance during startup
• Deprecate some remnants of the fast mode system that are superseded by the side effect system
• Fixed the hand, offhand, and pos1 patterns not showing in suggestions

Overall changes in 7.4.0

• For a more in-depth look at the new features, check out this article
• Added a -c option to //regen to output to clipboard
• Added #clipboard mask, to mask against blocks that match the clipboard
• Added a #fullcube mask that matches all blocks that fill an entire cube
• Enables the new experimental snapshot mode by default for new setups
• Added command completions for available schematic files to schematic commands
• Added a //registry command to search available registries
• Added an adjacency mask (~) to mask blocks that are adjacent to other blocks
• Added an -m flag to the //distr command to mask included blocks
• Added an API to override the copy region in PasteBuilder, to make it easier to paste a subset of a clipboard
• Added the ability to use any other pattern in the type applying pattern
• Added the ability to source from the clipboard via //deform
• Added an extend selection mode for polygon selections
• Added a //revolve command to paste a rotated copy of a selection around an axis
• Added a //replacebiome command to replace biomes in a selection by a given mask
• Reworked tree and forest generation commands to use a new tree-specific registry to improve reliability and mod support
• Fixed block limits not applying to the //update command
• Deprecate bundled item data, bundled block data, World#playEffect, legacy tree systems, and more for removal in WE 8
• Deprecate some remnants of the fast mode system that are superseded by the side effect system
• Reworked the way WorldEdit CLI pulls in versioned data, allowing dynamic data loading
• Fixed the hand, offhand, and pos1 patterns not showing in suggestions

For more information, check out this post that covers some of the main new features in detail!