Safe Scene Script Execution (SSSE) for Scene Script Assets: 3ds Max's SSSE feature has been extended to ensure that execution of unsafe scripted commands found in Script File Assets, such as pre and post render scripts, is blocked by default. This includes using Shift to multi-select in a sequence, and Ctrl to multi-select one-by-one. Per-Viewport Filtering - Multi-Select: Users can now work with the same style of multi-select options they use in 3ds Max to interact with the Per-Viewport Filtering dialog. Please see the Gizmos Preferences for more details. Active Manipulator: Users can now only display the manipulators for the active level of the modifier stack that the user is on (instead of displaying all possible manipulators). In 3ds Max 2023, compress scene file on save has been optimized to be almost two-times faster than before thanks to a new archiving library, multithreading, and other optimizations. Compressed Scene File Save Performance: For many releases, 3ds Max's ability to compress scene files while saving has been freeing up storage space for our users. Please see the Keyboard Shortcut Table for a full list of the new Unwrap UVW keyboard shortcuts. They include shortcuts for Stitch, Pack, Grow, Shrink, and much more.

Unwrap UVW Keyboard Shortcuts: New user-requested keyboard shortcuts for the Unwrap UVW modifier were added to 3ds Max for 2023. In addition, its accuracy is also greatly improved, especially when using various marquee-style selections, such as rectangle, circle, and freeform. Occlude Selection Improvements: Occlude Selection is now three times faster than before.

Smart Extrude allows for a partial cut-through on an Editable Poly object 3ds Max 2023 includes MAXtoA 5.1.0 which introduces new features, bug fixes, performance optimizations, and production improvements A new mode has been introduced to the Physical Material called Autodesk Standard Surface Compliant Physical Material Aligned with Autodesk Standard Surface:

Use glTF materials and export your 3ds Max files as compact. A new Autobackup toolbar has been added to the default user interface in 3ds Max Introducing a new way to modify your Working Pivot Use the display mode pull-down menu to view the input and output mesh results of the retopology action Handle larger amounts of data with less setup and preparation by enabling the Remesh option as a pre-processing step

The assembly autodesk.max.wrappers.dll