Where is Rhino 8 / 3DM format update?
Version 27:
These
bugs (not enhancements) are significant and should be fixed in V27. I'm sure I experienced the highlighted in red bugs at least twice.
Fractional Units Might Have Unexpected Input Parsing
When unit format is Fraction, some negative input values might result in unexpected behavior.
Spline Sketches May Update Erratically
Sketches that contain splines may not update predictably when, for example, a spline edge is connected to a model edge that changes location.
Trimming Elliptical Figures
Certain combinations of overlapping figures involving ellipses might result in sub-figures being untrimmable.
Some Draft Angles On Specific Geometry Cases Caused Crashes
Code has been hardened to avoid these issues.
Chamfer And Fillet Pattern Robustness
Chamfers and Fillets on Extrusion, Helix, Punch, Revolve, and Sweep features that consume multi-loop sketches could give odd results when patterned
Features May Incorrectly Populate Design Boolean Edit Contexts
Part features may incorrectly also populate the Design Boolean editing session.
Assembly Regenerate Command On Toolbar Didn't Work
Assembly Regenerate button on toolbars didn't function in some scenarios.
Object Reference Error
The addition of some features may cause object reference errors if all of the following were true: The part is light loaded, the part is transitioned to fully loaded, there is a suppressed feature below the last topology producing feature, and that suppressed feature is above the dog bone.
AppearanceID Not Supported By LightFace
An issue related to Assembly Holes throwing an error on assembly reopen has been fixed.
Undo/Redo Regarding Drawing Sheet Operations
Several bugs related to undoing and redoing the creation or deletion of drawing sheets have been implemented.
Disassociated Dimensions
Additional cases of disassociated dimensions from model geometry changes have been caught and addressed.
Hole Callout Data Disappeared
Some workflows resulted in Hole Callouts disappearing from a drawing
Manually Created Centerlines Might Disappear
Centerlines added with the Centerline tool might disappear when Centerlines are automatically added view-wide.
Real Time Dimensioning With Zero Angle
Sometimes odd results happen when setting an angle to 0 in real time dimensions.
Centerlines Inconsistent
Manual and automatic centerlines might behave inconsistently in dependent views such as section or detail views.
Legacy PDF Writer Crash
An issue that might crash the software when printing to PDF using the legacy PDF option has been addressed.
Object Reference Error When Double-Clicking A Dimension
Drawings in read-only mode might throw an exception when a dimension is double clicked.
Some Circles Cannot Be Dimensioned
New dynamic tolerancing of circle detection fixes issue of some specific circles not being dimensionable..
Some issues I documented here,
were fixed under the V27.0.1.27039 build.
Better transparency about bugs and known issues between releases would help.