Welcome to Blockbench 4.3 - The Start Screen Update!

Redesigned Start Screen

• Re-designed "New" section on Start Screen, added categories and model loaders
• Formats now show an overview on the start screen, before starting a model
• Recent models on the start screen can now be marked as favorite to pin them to the top
• Recent models can now be removed from the list (#1458)

Other UI Changes

• Change styling of slider inputs and Display Settings panel
• Added action to cycle between tabs (Ctrl + Tab)
• Added UV and Keyframe menu into the main menu bar
• Restyled web download button

Animation Features

• Automatic floor shifting to better preview walk animations (#1221)
• The Graph Editor now previews looped animations indefinitely
• Animations playing in the background now loop, even if they are shorter than the selected animation
• Added Collada animation support (WIP for multiple animations)
• Added actions to create and select keyframe columns (from animation sliders plugin)
• Added option to set timeline marker time
• #1274 Pre Effect Script for particles
• #1392 Assign different particles to each entry in same particle keyframe
• Added manual particle texture import (#993)
• #1484 Added option to preview model scale

Other Features

• Added UV scaling handle
• Added handle to resize gizmo to resize on all 3 axes at the same time
• Added in-app palette saving
• Enabled animated textures in generic model format. These cannot be exported by default, but may still be useful in some cases.
• Added "Unselect" action
• Added project setting to flip modded entity models on Y axis

Quality-of-Life Changes

• Added Preview Scenes
• Added "Append to Template" action to Textures panel toolbar
• Improved painting performance on high res textures
• Improved JSON exporter, added array splitting for long string arrays
• Added warning message for invalid characters in texture names (Java Block/Item)
• Copy-pasting textures now copies metadata, instead of just the image
• Scroll with mouse wheel to change color picker hue (#1466)
• Optimized behavior of "hide everything except selection"
• Project names and identifiers now get auto trimmed
• Automatic backups in web app now save all open tabs and remain available until restored or dismissed
• Disabled mirroring in Display settings by default, added a setting to re-enable. Mirroring no longer works in Minecraft since 1.14
• Instruction keyframes now automatically add ; on export for MC bedrock, if missing
• Variable placeholder inputs can now be targeted/switched by pressing Tab
• Added credit tag export to OptiFine JEM

Technical Changes

• Added "copy_value" option to Properties
• Exposed menu separator color as CSS variable for themes
• Added onBuild hook for dialogs
• Added dialog onPageSwitch return false support
• Added can_convert_to property on formats
• Made model identifier/geo name optional for formats
• Added support for additional marker colors
• Updated Electron to version 19
• Drag handlers can now be deleted directly
• Removed creation time from bbmodel files
• API for custom Select element

Fixes

• #1416 Problem with UV Mapping Meshes on 32x and above resolution
• #1117 Centering the view now works in Display mode
• #1418 Fixed some skin model IDs
• Fixed an issue with some settings not updating
• Fixed an issue with upper case characters in settings/keybindings search bar
• Fixed menus not disappearing after closing tab
• #1417 Fixed issue with mixing linear and smooth keyframes
• Fixed issue with variables in particle curves
• #1426 "Jump to Animation Start" does not stop the sound that was playing
• Fixed #1415 Generating template with existing UV on meshes
• Fixed #1455 color picker tool mistakenly picks color of background image
• Fixed #214 Display mode: Unable to overwrite number input with negative value
• Fixed timeline markers getting duplicated
• Fixed next/previous frame actions not working in paint mode
• Fixed issue with context menu of null object
• Fixed #1450 Cannot unselect all if any element is locked
• Fixed #1452 Keyframe context menu does not work in graph editor
• Fixed uniform scale keyframes not importing as uniform
• Added minimum background size to prevent them from getting hard to find
• Fixed issue with lock alpha channel on large brushes
• Fixed #1460 issue with white spaces in GPL palette import
• Fixed toolbars having a scroll bar in the web app on recent browser versions
• Fixed #1467 corrupting texture files when saving while closing
• Fixed issue with mobile tool bar in display mode
• Fixed undo issue when rotating mesh on X axis
• Fixed #1465 Rotation in bedrock locators
• Fixed issue with auto updating to beta versions
• Made display mode scale sliders work locked together with mobile shift toggle
• Fixed area select tool issue with offscreen elements
• Fixed #1479 duplicating an animation does not let you save it if you do not modify it
• Fixed #1473 No angle limit options when I append mesh to a template
• Fixed themes not loading correctly when dropped into app after start
• Fixed #1478 Copy pasting animations does not generate unique name
• Fixed #1485 files can be saved with a wrong file extension