Please see the changelog here:
https://github.com/14ercooper/14erEdit/releases/tag/v2.1.0

This version is released to fix a few bugs:

+ Macros no longer can crash the server
+ Catenaries now undo
+ gmask has been renamed to globalmask to not collide with WorldEdit

After quite a bit longer than expected, 14erEdit v2.0.0 is here! Woo hoo!!! arty:

A lot of framework building was done behind the scenes as part of this update to open 14erEdit up to be able to do some wild stuff in the future, which breaks basically every one of 14erEdit's external APIs (hence the v2.0.0). But on top of that, look at all the cool new features and whatnot that are part of this update:

+ World Height
+ 14erEdit now supports expanded world heights
+ Async system
+ There is no longer a separation between large and small edits
+ Async system no longer gets super slow when a lot of edits are made in a short time span
+ Undo system
+ Unlimited undo and redo history
+ No limit on undo/redo size
+ NBT System
+ Officially removed
+ Fx Command
+ fx reset to fully reset the player
+ Multiselections
+ Added support for multi-point selections
+ Splines
+ Uniform splines
+ Chordal splines
+ Commands
+ gmask command
+ Selections
+ The wand now persists over relog
+ Operators
+ modulus operator
+ limit operator
+ bonemeal operator
+ You can use number nodes a lot more places now
+ Brush shapes
+ Floodfill brush
+ Blob brush
+ Remove scaledsphere since it shouldn't have been usable anyways
+ Autofill
+ Fixed several autofill issues
+ Block IDs now autofill
+ Bugfixes
+ Undos are now much more stable
+ Undos no longer randomly don't work for some people
+ Operators are now much more stable
+ Parsing commands no longer has a race condition
+ Remainder node now works
+ Schem brush now works
+ Cylinder brush now works correctly
+ Debug text no longer spams everybody
+ setbiome operator is now more stable
+ Async operations no longer randomly just stop working
+ Multiversion
+ 14erEdit can now be used with any 1.13+ version with the same jar
+ Megaserver
+ Added docker containers for people who are into that thing
+ Switched to two-stage system
+ Log4j vulnerability patch
+ Startup/shutdown of servers should now be faster
+ Several performance improvements

Full changelogs can be found at https://dev.14er.games/ctmc/14erEdit/-/releases

This update has:

• 1.16 support for 14erEdit
• Easier syntax, including English symbols and a much more versatile system for block matching and setting
• All systems are now correctly async - including world operations, copy/pasting, and undoing

14erEdit is now an async world editing tool, at least on 1.15. I still need to backport the new features to older versions.

Fixed number nodes
Made it way faster

Everything is faster now, sometimes by quite a lot.
Lots of new operators, including gravity and more ways to use custom variables.
A new command: runat
The backend API is now much better for developers.

The NBT system now includes mobs and spawners; as well as exporting items, mobs, and spawners as commands. Also improved variable handling and added the ability to load operations from a file for ease-of-use.