Welcome to the second 4.0 beta!

To catch up with the changes in 4.0, please read the post about the 4.0 beta 1.

Installation and feedback

To test this beta, download the required installation files from the Assets section below, or enable the setting "Update to Pre-releases" inside Blockbench. Enabling this setting will tell Blockbench to always update to the latest pre-release, allowing you to test the latest features. Please note that pre-release versions may be unstable and have more issues than release versions.

Please report issues you find in the beta, make sure to specify the correct version.

Also, please let me know any feedback you might have, especially regarding poly mesh editing and the new UV editor, so that I can make sure to make them as intuitive as possible before release. We can talk about feedback in #bb-feedback on the Discord server.

New features and changes

Poly Editing

• Improved mesh highlighting, added highlighting for selected faces
• Added "Face Normal" debug View Mode, allows you to easily identify faces with inverted normals
  
• "Selection Mode" is now an icon mode widget:
  
• Add Mesh Inset tool
• Improved template generator
• Vertex coordinates can now be changed directly via position sliders
• Added face loop and line loop select by holding Alt
• Implemented "Auto UV" action for mesh faces
• Fill tool face mode now works with meshes
• "Add Primitive" dialog now remembers all input parameters
• "Add Primitive" is now "Add Mesh"
• Hide unselected faces in UV editor on large meshes to improve performance
• Added tool to convert cubes into meshes to filter menu
• Added "Normal" transform space

Tabs

• Closing the desktop app now brings up save dialog for all unsaved tabs
• Fixed issues with switching between and closing tabs
• Camera angles and view mode are now stored per tab

UV Editor

• Added support for "Center View on Selection"
• Added area selection

Misc

• When changing settings via Action Control, the description now appears directly in the dialog (#1038)
• Names of locked elements are now gray in outliner
• Made element panel toolbar labels slightly smaller
• Add "Add Texture Mesh" to edit menu
• Change default animated texture FPS to 7
• Show "Default Path" value in dialog (#1037)

Fixes

• Fix issue where imported bbmodel files would switch to generic model format
• Actions with linked settings are redundant in Action Control
• Fixed generation of recent model thumbnails with mesh models
• Animated textures don't preview in UV editor
• OBJ models import and export with incorrect scale
• Transparent cube faces still show texture
• Fix #1016 erase mode not working with fill tool
• Fix #1017
• Make mesh templates work with other meshes and cubes, fixes #1034
• Implement #1005 Tabs Feedback on unsaved projects
• Fix "Center Pivot" on meshes and groups
• Open with now focuses Blockbench window
• Fix themes exporting private fields
• Fix #1025 Cannot assign tab as a keybind
• Fix #1045 error when saving java block/item
• Fix #1006 UV face scaling issue
• Fix #1027 OBJ mesh export issue
• Fix issue with generating templates on 0 wide mesh faces
• Fix outliner scrolling issue
• Fix #1043 keyframes can be created at invalid timecodes
• Fix #1040
• Fix vertex snap issues (#1017)
• Fix #1012 Uv window does not refresh scale when changing project res
• Fix #1028
• Fix #1007
• Fix #1018
• Fix #1008 mesh highlighting
• Fix #1032 Selection does not update when switching selection modes
• Fix issues with extrusion direction, (#1029, #1023)
• Fix #1011 Missing translation action.add_texture_mesh
• Fix #1036 cannot toggle password input visibility
• Fix render sides not updating in all projects
• Fix #1039