brian
(Brian Gillespie)
May 13, 2025, 11:21pm
83
Rhino 8 SR20 Release Candidate 1 for Windows and Mac (8.19.25133) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
ser text: Paste to inactive cell (RH-87263 )
CPlane: Auto CPlane conflicts with OneView (RH-87056 )
CurveBoolean: Should temporarily disable Grid Snap (RH-87124 )
Display:
Grasshopper CenterMark Preview is Clipped (RH-87187 )
Issue with clipped SubD objects (RH-82133 )
Clipping fill incomplete (RH-81289 )
Rough sub-object highlight on Mac (RH-87078 )
Export: Ordinate dimension adds extra text when exporting to .dwg (RH-87383 )
File IO: DWG: Import DXF inconsistencies in block with text (RH-84045 )
Import: Dimension Text Height Not Importing Correctly (RH-87002 )
Isometric: Causes perspective to go nuclear (RH-87009 )
Layer: Resetting layer filter clears selection (RH-87301 )
NamedSelections: Delete UI performance issue (RH-86766 )
Print:
Vector Outputs Square Hatch Points, Not Round (RH-86281 )
Corner vertices are visibly and larger (RH-84253 )
‘Print Multiple Layouts’ may not preview (RH-87095 )
Properties: Button behind layer dropdown is activated (RH-87230 )
PushPull: Does not work for certain flat surfaces (RH-87208 )
Rendering: Cycles: Picture self-illumination broken (RH-86111 )
ScriptEditor:
Completion does not work in string interpolation (RH-87258 )
#load with no space between # and load does not work in C# (RH-87073 )
Autocomplete does not show files linked using #load (RH-87074 )
Code completion incorrect (RH-87123 )
SDK: Support plug-in overrides for double click behaviour (RH-87007 )
SDK: RhinoCommon:
Rhino.Geometry.Brep.Unroller Explodes Brep Unexpectedly (RH-87303 )
RhinoDoc.Groups.GroupMembers(int index) does not work with headless doc (RH-87223 )
Viewports: Lens length decreases when toggling view projection between Perspective and Parallel (RH-86523 )
What: Shows Text info for Point Clouds (RH-87142 )
Crashes Fixed:
File IO: Exporting any mesh as obj crashes (RH-87315 )
Enhancements:
File IO: Supports reading SolidWorks 2025 files (RH-87219 )
Layer: Allows setting all layer properties (except materials, linetypes, and section styles) of reference layers from linked blocks (RH-68718 )
Features Added:
OSnap:Mid: When only midpoint is enabled, moving mouse cursor near any part of a curve would snap to its midpoint (RH-86927 )
Regressions Fixed:
-Import command can no longer process gh files. (RH-87156 )
Export: Saving to DXF regression (RH-87322 )
File IO: Export OBJ Crashes (RH-87058 )
Print: Messy Vector Print from Intersecting Objects (RH-86993 )
SpaceMouse: Does not select properly (RH-87017 )
SDK Enhancement:
SDK: RhinoCommon:
DrawMeshShaded() small wish (RH-87384 )
Backface Setting: Single color for all objects (RH-86440 )
Exposed ON_Brep::LoopIsSurfaceBoundary (RH-86960 )
Usability Problems Fixed:
ScriptEditor: Script editor should autocomplete code params (RH-85076 )
Mac-Only Changes
Bugs Fixed:
CommandHistory: Command popover causes wrong document to be key after Cmd + N (RH-83106 )
Grasshopper: TTToolbox crashes Rhino (RH-87049 )
Windows-Only Changes
Bugs Fixed:
SDK: RhinoScript: SelectLayers Null argument not working in Rhino 8 (RH-87065 )
brian
(Brian Gillespie)
May 20, 2025, 10:16pm
84
Rhino 8 SR20 Release Candidate 2 for Windows and Mac (8.19.25140) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
File IO:
Dimension Text Height Not Importing Correctly From DWG Files (RH-87002 )
Brep fails to export to SKP (RH-87464 )
StatusBar: Status bar units are wrong (RH-86732 )
Regressions Fixed:
MeshOutline: Broken in 8.20 (RH-87452 )
SDK: RhinoCommon: DisplayPipeline.DrawText regression (RH-87220 )
SDK Enhancement:
SDK: RhinoCommon: Allows setting single-color backface for all objects (RH-86440 )
Mac-Only Changes
Regressions Fixed:
Display: Render mesh broke for some mac users in 8.20 (RH-87449 )
Intersect: Intersection of two spheres is partial curve not full circle (RH-87538 )
Windows-Only Changes
Bugs Fixed:
Rendering: Vray rendering of mesh effects broke (RH-87529 )
brian
(Brian Gillespie)
May 27, 2025, 9:40pm
85
Rhino 8 SR20 Release Candidate 3 for Windows and Mac (8.19.25147) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Windows-Only Changes
Crashes Fixed:
Annotation: Leader: Crash on creating 17th leader (RH-87550 )
brian
(Brian Gillespie)
June 11, 2025, 4:22pm
86
Rhino 8 SR21 Release Candidate 1 for Windows and Mac (8.21.25161) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
Annotation: Styles: Annotation Style: Annotations not updating when Fit Arrow dropdown is changed (RH-87650 )
Block:
Instance Rotation Properties - Feet and Inches (RH-87645 )
AddMissingBlockAttributeKeys command - AllBlockInstances ignores invisible block instances (RH-87605 )
ClippingPlane: Polyline features get obscured by clippingplane (RH-83784 )
Display:
SubD analysis mesh doesn’t transform (RH-87382 )
Segmented Linetype Quality Issue (RH-84564 )
Document UserText: Tab key gets sent to command-line (RH-87722 )
File IO: Models in decimeters export to STP as meters (RH-87469 )
Grasshopper: Preview of Annotation Dot in viewports is not interactive (RH-87428 )
LineTypeDisplay: Size of dots does not match width of segments (RH-86870 )
Make2D: Hidden lines missing (RH-50127 )
MeshSplit: MeshSplit test case (RH-81394 )
OffsetMesh: Incorrect offset direction (RH-87229 )
RDK: Mouse wheel scrolling stuck in Texture Mapping properties (RH-87432 )
ScriptEditor: Roslyn runtime always extracts netfw ref assemblies (RH-87539 )
SDK: RhinoCommon:
Unable to replace LightObject ObjectAttributes (RH-87445 )
Line.MinimumDistanceTo gives incorrect result for co-linear lines (RH-87573 )
ShrinkWrap() with CancellationToken is missing from PointCloud and IShrinkWrapService (RH-87443 )
StatusBar: Inches are Shown as Feet (RH-87173 )
SVG Editor: Import clears file prematurely (RH-87575 )
ViewCaptureToFile: ViewCapture.CaptureToBitmap captures with small border (RH-87393 )
Enhancements:
Block: Added AllBlockInstances option to AddMissingBlockAttributeKeys command (RH-87487 )
PropertiesPage: AlwaysShowGeneralObjectProperties Setting (RH-86628 )
Regressions Fixed:
BackgroundBitmap: .pcx format not supported (RH-87433 )
OffsetCrvOnSrf: Does not extend if the surface is trimmed (RH-84888 )
SDK Enhancement:
SDK: RhinoCommon: Expose CDisplayAttributeMaterial properties (RH-87592 )
UI Change:
Units: Renamed 'Units per meter' to 'Meters per Custom Unit' in document properties (RH-87565 )
Mac-Only Changes
Bugs Fixed:
ChangeLayer: Layer: Crv Points Issue on Locked Layers (RH-87446 )
Linetype: Change Doesn't Stick (RH-87598 )
MatchSrf: Settings need to use point as decimal separator when comma is set for system (RH-87342 )
PrintPreview: Raster Preview Not Showing Contents of Details (RH-86271 )
Properties: Pressing Enter after changing object properties doesn't bring focus back to command-line (RH-87366 )
Crashes Fixed:
Grasshopper: Crash When Copy String to Clipboard (RH-87235 )
Regressions Fixed:
Display: Render mesh broke for some mac users in 8.20 (RH-87449 )
Intersect: Only part of a circle is created between two intersected spheres (RH-87538 )
Windows-Only Changes
Bugs Fixed:
Display: Curve drawing quality (RH-78744 )
PrintPreview: Detail Contents Previewed Too Thin as Raster (RH-86273 )
SDK: Removing unimplemented CRhinoDib::ToON_WindowsBitmap (RH-87563 )
SVG Editor: File > Close does not close SVG Editor (RH-87557 )
Crashes Fixed:
Display: Turning Off Clipping Plane Crashes (RH-87801 )
will
(Will Pearson)
July 2, 2025, 12:03am
87
Rhino 8 SR21 Release Candidate 4 for Windows and Mac (8.21.25176) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
brian
(Brian Gillespie)
July 10, 2025, 4:36pm
88
Rhino 8 SR22 Release Candidate 1 for Windows and Mac (8.22.25189) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
Annotation: DimAngular: Fails in Ortho View (RH-87736 )
Annotation: DimLinear: "Object" Only Dims a Segment (RH-88092 )
Annotation: Hatch: Boundary mode causes history update bug and memory leak (RH-87915 )
ChamferSrf: Failure sample (RH-80860 )
ContinueCurve: Resulting curve fails with area calculation (RH-87917 )
Display:
CaptureToBitmap() antialising with transparent background wrong (RH-88256 )
FFO Custom CPlane Widget Messes Up Display (RH-87877 )
Linewidth Preview is Zoom-dependent (RH-87911 )
Extend: Extended Line is Segmented (RH-88091 )
Import: Attributes in DWG Import Incorrectly (RH-87836 )
Layer: Canceling search in Layers panel expands layers (RH-80834 )
PackageManager: Yak CLI uses the wrong install directory on Mac (RH-88110 )
SDK: RhinoCommon:
RhinoCommon: OpenNURBS: opennurbs_dimension.cs: AdjustFromPoints overload ignores rotationInPlane (RH-87973 )
OpenNURBS: opennurbs_3dm_settings.cs: AnimationName and HtmlFileName properties are nearly identical (RH-87936 )
OpenNURBS: opennurbs_3dm_settings.cs: ModelLocationIsSet returns value base on EarthLocation (RH-87935 )
OpenNURBS: opennurbs_3dm_settings PageAbsoluteTolerance setter sets relative tolerance (RH-87934 )
OpenNURBS: opennurbs_arc.cs Angle property summary is potentially misleading (RH-87940 )
OrdinateDimension.LeaderPoint Bug (RH-87909 )
Selection: Finds duplicates when ClippingPlane is active (RH-88177 )
StatusBar: Changing layer also clicks on panel behind (RH-87718 )
Templates: Thumbnail missing for Small Objects - Inches (RH-88043 )
Trim: Grouped objects on hidden or locked layers can still trim objects (RH-88141 )
Crashes Fixed:
Toolbar: Crash when creating a button (RH-88056 )
Enhancements:
Grasshopper: Loft & Extrude Point issues (RH-85485 )
Layout: Allows 3 decimals in width and height (RH-87871 )
SelChain: Prefers segments of the same type (curve or edge) as the first picked segment (RH-88270 )
Regressions Fixed:
Properties: Layer dropdown loses focus when resized (RH-88003 )
UI Change:
Toolbar: Added Grasshopper help button to Grasshopper toolbar (RH-87327 )
Mac-Only Changes
Crashes Fixed:
RDKCrash: Crash after internal Metal error (RH-78648 )
Windows-Only Changes
Bugs Fixed:
Display:
Worse curve drawing quality, especially with high-contrast colors (RH-78744 )
Curves Don’t Display Smooth (RH-86693 )
Crashes Fixed:
Toolbar: Rhino crashes when moving a button (RH-87533 )
will
(Will Pearson)
July 15, 2025, 9:46pm
89
Rhino 8 SR22 Release Candidate 2 for Windows and Mac (8.22.25196) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
SDK: RhinoCommon:
OpenNURBS: opennurbs_extensions.cs: Potential bug in ReadApplicationData method (RH-87994 )
OpenNURBS: opennurbs_bezier.cs: GetBoundingBox accurate parameter ignored (RH-87942 )
Selection: Wrong verbal feedback when removing from selection (RH-88294 )
brian
(Brian Gillespie)
July 22, 2025, 9:47pm
90
Rhino 8 SR22 Release Candidate 3 for Windows and Mac (8.22.25201) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
Developer Tools: Some RhinoCommon targets should be in buildTransitive in nuget packages (RH-87473 )
WindowLayout: Rhino does not restore the modified layout (RH-78940 )
brian
(Brian Gillespie)
August 13, 2025, 3:36am
91
Rhino 8 SR23 Release Candidate 1 for Windows and Mac (8.23.25224) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
Quad Remesh dialog display scaling issue (RH-88437 )
BlockEdit: Editing a linked file leaves a "ceflog.txt" file on disk (RH-62888 )
Curve: Changing active layer while drawing does not update preview color (RH-88368 )
Display: Selected subobject has clipped selected edge highlight (RH-79197 )
DotNET: Load MSAL.NET >4.52 for SSO broker support (RH-88608 )
FilletSrfToRail:
Group: Only Partial Feedback Hidden Model Layer (RH-88314 )
LineTypeDisplay: Only Partial Support for RH8 Features (RH-88036 )
Print: Short Curves Print As Hatch Dots (RH-88367 )
Properties: Do no assign linetypes from reference files (RH-88743 )
Rendering: Realtime SDK: Change Queue and Block - Event not fired (RH-88546 )
Rendering: Textures: ON_Texture simulation has wrong rotation (RH-88633 )
ScriptEditor: Code wants to compile against specified package versus inspected (RH-88430 )
SDK: Per-face materials don't work properly with headless Rhino (RH-88227 )
StatusBar: Units are not displayed as fractional (RH-86734 )
UserText: Remember Attribute Text key/value column sizes (RH-88503 )
Cosmetics:
PluginManager: Plug-in's page needs padding (RH-88722 )
Crashes Fixed:
FilletSrfToRail: crash / hang (RH-86474 )
SDK Enhancement:
SDK: RhinoCommon: Closed mesh is seen as open mesh (RH-88560 )
Mac-Only Changes
Bugs Fixed:
WindowLayout: Double OSnap toolbar containers in presets (RH-80062 )
Windows-Only Changes
Bugs Fixed:
UserText: Search Focus Issue (RH-88599 )
Viewports: Closing Floating View buggers Layout (RH-84419 )
brian
(Brian Gillespie)
August 19, 2025, 10:04pm
92
Rhino 8 SR23 Release Candidate 2 for Windows and Mac (8.23.25231) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
SDK: CRhinoGetObject and pre-selected instance subobjects (RH-88424 )
brian
(Brian Gillespie)
September 2, 2025, 10:17pm
93
Rhino 8 SR23 Release Candidate 4 for Windows and Mac (8.23.25241) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Crashes Fixed:
Panels: Import button in Linetypes panel crashes Rhino (RH-89091 )
will
(Will Pearson)
September 9, 2025, 10:00pm
94
Rhino 8 SR24 Release Candidate 1 for Windows and Mac (8.24.25251) is now available
To get it, subscribe to the Release Candidate update stream .
Requires Rhino 8
Bugs Fixed:
Annotation: DimLinear: DimAligned / Dim shifts after changing properties (RH-89220 )
Annotation: Hatch: Overwriting existing pattern does not update in viewports (RH-88326 )
BlendSrf:
Does not work consistently (RH-89040 )
Switching on/off internal shapes makes sliver surface (RH-89109 )
Display: Poorly Visible Curves on Zero-Depth ClippingPlane (RH-83623 )
ExtendSrf: ExtendSrf_old behaves differently (RH-89006 )
Grasshopper:
Extremes (curve) component doesn’t seem to work right (RH-74711 )
Pull component should return curve list (RH-89114 )
Arrow Settings do not get properly serialized/deserialized in GHData In/Out (RH-88819 )
BoundingBox too small (RH-88798 )
History: History replay of dimensions when extrusion turns into brep (RH-89215 )
Revolve: Deformable=Yes creates rotated output (RH-88979 )
Ribbon: Makes bad geometry (RH-89031 )
ScriptEditor: Code close does not save to existing storage (RH-89314 )
Selection: Weird left-click behavior on Mac (previously clicked items remain selected) (RH-89120 )
Undo: Curve points are deselected after undoing a move (RH-88900 )
Crashes Fixed:
Grasshopper: Offset Loose component crashes Rhino when connecting Invalid curve (RH-88858 )
RDKCrash: Content Instance Browser dialog crashes (RH-88897 )
Enhancements:
HighlightObjectLayers: Should open Layers panel (RH-89079 )
Regressions Fixed:
UVEditor: Added back ability of copying UV meshes to clipboard (RH-83978 )
SDK Enhancement:
SDK: RhinoCommon:
Exposed CRhinoGet::IsValidOptionName (RH-89300 )
Exposed MakeUniform command (RH-89160 )
UI Change:
Grasshopper: SubD turns null when opened in Rhino 7 (RH-88081 )
Mac-Only Changes
Bugs Fixed:
Annotation: Hatch: Gradient hatch handle not visible (RH-87649 )
Windows-Only Changes
Bugs Fixed:
Rhino Inside: Rhino running headless displays popup about missing fonts (RH-89162 )
brian
(Brian Gillespie)
October 1, 2025, 11:38pm
95
Rhino 8 SR24 Release Candidate 2 for Windows and Mac (8.24.25273) is now available
To get it, subscribe to the Release Candidate update stream
Bugs Fixed:
InsertEdge: Fails to update Radiate symmetry (RH-82094 )
Mac-Only Changes
Bugs Fixed:
Settings: Trackpad Settings missing on Tahoe (RH-89545 )
brian
(Brian Gillespie)
October 7, 2025, 9:57pm
96
Rhino 8 SR24 Release Candidate 3 for Windows and Mac (8.24.25280) is now available
To get it, subscribe to the Release Candidate update stream
Mac-Only Changes
Bugs Fixed:
Properties: Object's Layer Color is Confused (RH-89712 )
brian
(Brian Gillespie)
October 14, 2025, 10:50pm
97
Rhino 8 SR25 Release Candidate 1 for Windows and Mac (8.25.25287) is now available
To get it, subscribe to the Release Candidate update stream
Bugs Fixed:
Aliases: Mac/Window alias settings are saved in different locations.. (RH-89588 )
Block: Scaling When Inserted in Detail (RH-89470 )
BlockEdit: Do not repeat hidden commands in its dialog (RH-89760 )
Contour: Inconsistent direction of output curves (RH-89376 )
Displacement: Runs over and over (RH-88735 )
Display:
Technical Display Modes Ignore SubD Display Toggle (RH-78733 )
Clipping Section Linetype Should Follow Model Space Scale (RH-86187 )
Objects look inverted when selected (RH-89487 )
Grasshopper:
Updated Sweep 1 Rail component to use Brep.CreateFromSweep method (RH-89549 )
Unsaved Documents After Saving (RH-89511 )
Length Factor in Annotation Unit Settings does not get set properly (RH-89467 )
Import: Suppress package manager dialog (RH-89710 )
Layer: "Set current layer" icon does not work properly (RH-89447 )
Offset: Incorrect result for self-intersected region (RH-89462 )
OSnap: Cannot snap to selected blocks behind shaded objects (RH-89451 )
Print: Scale of section boundary ignored by vector output (RH-80415 )
Properties: Changing per-face colors overwrites the object's name (RH-89667 )
Rendering: Materials: FBX Import Change (RH-89515 )
ScriptEditor:
Inline C# properties do not auto-complete (RH-89648 )
Project fails to compile when descriptions have new lines (RH-89736 )
Project fails to compile when there are a lot of string literals (RH-89737 )
Proxy GetViewList is missing bool,bool overload (RH-89611 )
SDK: Annotation dots near failing intersection (RH-84286 )
SDK: Python: rs.PopupMenu error (RH-86577 )
Selection: Clipping planes can be selected and snapped in display modes that do not display them (RH-89464 )
ShadeSelected: View manipulation cancels object shading (RH-89463 )
ShowEdges:
Incorrect naked edges shown (RH-89847 )
Some edges not or hardly visible (RH-89687 )
Smooth: Needs to remember the dialog location (RH-89645 )
TextField: PageNumber in model viewports now returns 0 (RH-89428 )
Toolbar:
Unexpected RMB tooltip added to MeshFromPoint button (RH-89629 )
Removed RMB macros from Layer and Properties buttons (RH-79025 )
Incorrect macro for LayerBook Print button (RH-89429 )
Enhancements:
Bake: Added FillRange option for post-selection (RH-89677 )
EdgeSoftening: Allows more decimals (RH-89753 )
Performance Improvements:
Grasshopper: Slow down material assignment (RH-89738 )
Regressions Fixed:
BoundingBox: Extrusion Bounding Box behaviour different in Rhino 7 and Rhino 8 (RH-89799 )
SDK Enhancement:
SDK:
Move SplitRenderMesh to the SDK (RH-89846 )
Improved input checks for curve intersections (RH-89630 )
SDK: RhinoCommon: Added a new Curve.TrimInterval which calls ON_Curve::Trim like Rhino_DotNet (RH-89686 )
Mac-Only Changes
Bugs Fixed:
Properties: Can't change layer of multiple objects at once on Mac (RH-89614 )
RhinoMonitor: Error report window drifts off screen while resizing (RH-89691 )
SDK: RhinoCommon: CommandWindowCaptureEnabled not working on macOS (RH-89365 )
Windows-Only Changes
Bugs Fixed:
Toolbar: Loading RUI locks up Rhino (RH-89475 )
brian
(Brian Gillespie)
October 21, 2025, 11:50pm
98
Rhino 8 SR25 Release Candidate 2 for Windows and Mac (8.25.25294) is now available
To get it, subscribe to the Release Candidate update stream
Mac-Only Changes
Bugs Fixed:
Eto: Eto FileDialog crashes when specifying all files (RH-90064 )
PackageManager: Install dialog not showing buttons on Mac (RH-89655 )
brian
(Brian Gillespie)
October 29, 2025, 8:57pm
99
Rhino 8 SR25 Release Candidate 3 for Windows and Mac (8.25.25302) is now available
To get it, subscribe to the Release Candidate update stream
Bugs Fixed:
Layer: Rhino 8 doesn't refresh Layer UI when removing layer material (RH-90141 )
Mac-Only Changes
Bugs Fixed:
Quicklook: Thumbnail previews not working on macOS Tahoe (RH-90113 )
Windows-Only Changes
Bugs Fixed:
CommandPaste: Paste command should support AutoCAD LT (RH-90097 )
brian
(Brian Gillespie)
November 11, 2025, 11:41pm
100
Rhino 8 SR26 Release Candidate 1 for Windows and Mac (8.26.25315) is now available
To get it, subscribe to the Release Candidate update stream
Bugs Fixed:
Annotation: Hatch: Hatch display color property missing "By Material" (RH-90331 )
BlockEdit: Unlock and BlockEdit (RH-52030 )
Containers: Collapsed Properties Panel Blocks Access to Rhino (RH-82645 )
CPlane: AutoAlign: Auto CPlane hangs Rhino when subselecting many mesh faces (RH-90290 )
Grasshopper:
Content Note and Tag does not survive GHData serialization on Material (RH-89951 )
Surface and Curve Orientation are not compared during Content Cache Push operation (RH-89952 )
Grasshopper: Components: Grasshopper: Rhino 8 GH Extreme component bug (RH-90027 )
HeightField: Mesh output does not respect active layer (RH-90052 )
Keyboard Shortcuts: "⌘ + /" Hotkey Keybinding doesn't save (RH-90304 )
Layer: Restore Print color doesn’t restore synchronization (RH-90172 )
MeshIntersect:
Mesh intersection output going the wrong direction… (RH-67041 )
SLC export doesn’t work because of mesh intersection changes (RH-66931 )
Print: Intersections repeatedly added cause printing to freeze (RH-89973 )
RDK: CRhRdkLongOperation messes up cursor settings (RH-90237 )
ScriptEditor: Python 3 seems to fail sometimes on matplotlib bootstrap script (RH-90171 )
SDK: RhinoCommon: InstanceObject.UsesDefinition returns false positives (RH-90174 )
SelVisible: No Hatch Support (RH-90294 )
UserText: Options - Document User Text. Preserve Empty Value fields (RH-90302 )
Performance Improvements:
Display: Lagging with Many Curves (RH-82891 )
Regressions Fixed:
Properties: Cannot type to find a layer in object properties (RH-89948 )
Mac-Only Changes
Bugs Fixed:
BlendEdge: Edit BlendEdge set to 0 oblitterates Object (RH-90029 )
Display: Rendered mode on Mac ignores transparent objects shadow tolerance (RH-89935 )
Windows-Only Changes
Bugs Fixed:
ModifyRadius: Does not accept Enter to keep radius and end command on Windows (RH-90059 )
brian
(Brian Gillespie)
December 16, 2025, 10:31pm
101
Rhino 8 SR27 Release Candidate 1 for Windows and Mac (8.27.25350) is now available
To get it, subscribe to the Release Candidate update stream
Bugs Fixed:
Annotation: Volume and Curve Length not created on current CPlane (RH-90620 )
Display: Grasshopper Annotation Dot Disappears in Viewport (RH-89180 )
File IO:
Multi-Page PDF is not Spaced (RH-90871 )
Rhino missing points from e57 pointcloud (RH-90779 )
File IO: DWG:
Added space after whole number before fraction (RH-90830 )
Some curves imported at incorrect elevation (RH-90527 )
Grasshopper: Custom Curve Preview is not calculating the bounding box correctly upon first opening a file (RH-90990 )
Grasshopper: Components: Sweep1: the sweep surface is not touching the profiles and profiles dont start and end at rail endpoints (RH-91044 )
LayerStateManager: Layers from linked blocks not restoring properties (RH-90909 )
Offset:
Print: Scripting print doesn't work (RH-90760 )
ScriptEditor: Project Version can be earlier than previous (RH-90532 )
SDK: RhinoCommon:
RhinoCommon API crashes/exceptions (RH-90896 )
Added RhinoIntersectPlaneBrep function (RH-90812 )
Section Style: Error saving section style with hatch pattern (RH-90683 )
Select: Subobject Left Highlighted After Undo (RH-90624 )
Trim: Objects with huge bounding box in z-direction are not trimmed properly in layout space (RH-90518 )
Cosmetics:
Dark Mode: PackageManager install message not theme aware (RH-90433 )
Regressions Fixed:
File IO: AI file import misses Hatch only objects (RH-85307 )
Print: Rhino.Options.Advanced.PDF.OptionalContentGroups does not work with Rhino 8 (RH-90679 )
Mac-Only Changes
Bugs Fixed:
Core Architecture: Improved loading speed for image textures (RH-90913 )
Dark Mode: Panels don't update (RH-85095 )
Display Metal:
Slower performance in Rhino 8/9 (RH-90576 )
Objects are displayed dark and dull in Rhino 8 (RH-90853 )
Grasshopper: OBJ files cannot be written from OSX (RH-90500 )
Layer:
Layer properties cannot be changed sometimes (RH-88035 )
Cannot rename layers (RH-86220 )
Print: Vector output to PDF causes a crash (RH-90568 )
Quicklook: Thumbnail previews not working on macOS Tahoe (RH-90113 )
Crashes Fixed:
Eto: Drag and drop material onto object causes a crash (RH-90940 )
Windows-Only Changes
Bugs Fixed:
Containers: Auto-hide right sidebar causes Rhino app to lock up when selecting a mask color for annotation objects (RH-90288 )
Layer: Layer panel loses focus after sorting a layer with mouse (RH-90476 )
dan
(Dan)
December 23, 2025, 8:55pm
102
Rhino 8 SR27 Release Candidate 2 for Windows and Mac (8.27.25357) is now available
To get it, subscribe to the Release Candidate update stream
Bugs Fixed:
Grasshopper: Components: Annotation Text Override - Wrap Width requires Text Change (RH-90114 )