Enhancements

3D Shapes
Improved the accuracy of volume and area computations for some very small or long, thin objects.
Category Visibility
Added eight new family categories related to Equipment and Building elements with the ability to enable cutting in view.
Enabled creating families for Road and Road Tag categories by starting from a generic model family template.
Enabled creating families for bridge-related categories by starting from a generic model family template.
Color Fill
Improved default color for the newly created color scheme definition to be lighter and modern for better visualization and printing.
Content
Added some furniture, specialty equipment, and site families to the English Imperial library.
Countrification
Added barrier-free facilities families into the Germany library.
Edit
Added two new type driven parameters in dimension so that customers could easily add prefix or suffix to the dimension primary unit.
Provided a new option to set callout plan view as independent so that it could be preserved after its parent view is deleted.
Removed the redundant confirmation dialogue when customers click "ECS" but there is no change in the text editor.
Added the ability to add annotation: spot slope on ramp at plan, elevation, section and 3D views.
Remembered the settings of Modifying tools across Revit sessions, including: Copy, Move, Offset, Rotate, Mirror, Align, Scale, Split and Array.
Graphics
Improved Hidden Line views to resolve an issue where model lines overlapping Room and Area fills were incorrectly producing hidden lines.
Improved Wireframe views to allow views with room color schemes in the foreground.
Improved stability of the display of onscreen controls.
Improved default lighting of Realistic views in the Family Editor.
Improved Realistic view display so that decals placed on displaced elements display in the correct location.
Improved Realistic view reflections so that elements with advanced materials now appear in the reflections of other elements.
Improved Realistic view display to resolve issues where some Advanced materials appeared black rather than reflective.
Improved Wireframe views so printed output will match the screen.
Grids
When upgrading a model, the Grids are hidden in the 3DView.
Groups
Corrected an issue where grouped detail items would display in the wrong orientation in some views after they were modified in another view.
IFC
IFC propertyset definitions and the associated Revit shared parameter definitions have been updated with the latest IFC4 PSDs of version 4.0.2.2 (partial update from the scope of IFC4 RV1.2 MVD).
Improved the IFC export UI to provide better support for IFC4 Geographic Coordinate Reference information.
Added the ability for IfcExporter to pick up information from SiteLocation regarding the GeoCoordinateReference in EPSG code format as required by IFC. It works with Project Base Point or Survey Point as Coordinate base.
Disabled the ability to create shared parameters with the same name when linking an IFC file.
Added the ability to export a predefined type for railings to an IFC file using the IfcExportAs parameter.
Added the ability to use the IfcExportAs parameter on standard walls to export as any valid IFC building element and predefined type.
Significantly improved the performance of linking in some IFC files containing elements with many parameters.
Removed built-in export configuration "IFC2x2 Singapore BCA ePlan-Check" and any saved configuration that uses this will be automatically assigned to "IFC2x3 Coordination View 2.0".
Improved performance when linking in IFC files that create elements with many properties.
Improved the positioning of some linked IFC models.
Achieved IFC4 Reference View certification for architectural export.
Added the ability to export to IFC areas from 3D views when a section box is present, similar to how export of rooms work.
Added the ability to export a file to IFC with invalid values in the IfcGUID parameter.
Import/Export/Link SAT/SKP
Fixed potential positioning and scaling issues when using Import SketchUp inside a Family environment.
Import/Export/Link STL
Added option to export to the STL file format in the Export CAD dialog.
Link RVT Files
Added the ability for tags hosted to elements in a link to automatically re-host when the same elements become available, which improves workflows that would have previously orphaned tags for all users with an earlier version of the link loaded.
Link Topography
Improved the Link Topography command to follow the user interface configuration for command availability in the Revit Options dialog.
Materials
Remembered last used material browser tab on the device.
Improved the performance of switching the view to realistic when there are elements in canvas shared the same RPC as render appearance asset, up to 10x faster.
Options Dialog
Changed the name of 'Ribbon Tab Switching Behavior' to 'Ribbon Tab Switching' for consistency.
Print
Improved printing so that the view will be forced to raster if there is a Coordination Model visible so it will be in the printed output.
Improved printing of generic annotations nested in model families so that when the host family overridden to be transparent, a solid filled region in the annotation will display and print transparent.
Improved the display of hidden lines through MEP Fabrication duct when parts are placed as taps.
Fixed an issue with Realistic views where some views with a split region would not print correctly when placed on a sheet with other views.
RPC
Improved Realistic views by adding an option to display RPCs from all directions similar to past releases in addition to the front only improved performance option.
Added ability to turn off the elements that contain a .rpc as render appearance asset in a realistic view for better performance.
Supported 3D RPC to be rendered with a realistic view.
Supported using RPC in the furniture family category.
Added 28 new 3D RPC files in Autodesk Material Library.
Revisions
Improved transfer project standards by splitting Revision Settings into two separate options: Revision Settings and Revision Numbering Sequences.
Improved performance of some operations in the Sheet Issues/Revisions dialog for projects containing a large number of revisions or revision cloud instances.
Added a 'Minimum number of digits' option for numeric-based revision numbering sequences, which will determine the overall length of the generated revision number.
Added the ability to create multiple revision numbering sequences, which can be assigned to the overall revisions in a project.
Revit Home
Updated error messages on Revit Home page.
Schedules
Enabled split main schedule by defining the height (a new way to split):

Split evenly across multiple sheets

Split by given a custom height

Place segments at one time to multiple sheets

Align placed segments position according to the title block inner top left corner.
Enabled splitting schedule into several parts via in-canvas control and placing the parts from the same schedule onto different sheets. Supported segments as child nodes of the main schedule. Added index for the new segments.
Added the ability to filter Family, Type, and Family and Type in schedule views.
Added the ability to filter Workset parameter in schedule views.
Added the ability for most element category key schedules, when disassociating a key from an element (setting it back to none) the current parameter values will be preserved on the element, which are then modifiable as needed.
Added an icon and tooltip in element properties for all parameters included in an assigned key schedule, which indicates the status: 'Parameter set by key schedule' or 'Parameter cannot be set by key schedule'.
Expanded Category List when creating multi-category schedules in Schedule/Quantities and Material Takeoff.
Enabled exporting a schedule to .csv file as the default format.
Added the ability to include instance shared parameters in a key schedule.
Added Workset in available fields for workshared models when creating schedules, material take-off, sheet list, note block, and view list.
Shared View
Provided a new way to open a Revit cloud model from File Open menu.
Improved the Performance of account and project loading by up to 30-40% on Revit Home after signing in.
Provided an easy way to share a 2D view in Revit.
Tags
Provided support for all taggable categories in a multi-category tag.
Added the ability to easily select the references for the multi leader tags.
Added the ability to tag curtain wall mullions.
Added the ability for multi leader tags to show host count, varies when parameters vary and bulk change the value for tagged elements from the tag.
Moved the property "Maintain Annotation Orientation" to the "Other" group in the Properties palette.
Resolved the issue so that the text of multi-label tags would display Right-to-Left correctly when there are mixed language such as Hebrew, English, Arabic, etc.
Added various modelling improvements for rotated tags.
Added the ability to rotate room, space, and area tags using the angle parameter.
Added the ability to rotate tags using an angle.
Added ability to tag multiple elements with a single tag.
Transfer Project Standards
Added the ability to resize the Review Warnings and Extended Warnings dialogs.
Removed Annotation Family Label Types from the Transfer Project Standards dialog because the setting is not useful in the project environment.
Added the ability to resize the Transfer Projects Standards dialog.
Added tooltips on the buttons of Transfer Project Standards dialog.
User Interface
Added a Revit.ini option, DisableProductFeedback=1, to prevent Product Feedback dialog from appearing at the end of Revit sessions.
Updated branding from BIM 360 to Autodesk Docs and from BIM 360 Design to Autodesk BIM Collaborate Pro. See [FAQ
Provided a new project wide setting to customize the indication when a set of elements containing a parameter with multiple values is selected. The indication could also be overrides per field in schedule view.
Enabled infrastructural tools when selecting Civil discipline in the user profile.
Added the ability to resize the following Revit dialogs: Transfer Project Standards, Synchronize with Central, Wall Sweeps/Reveals, Warnings, Purge Unused, and Edit multiline text.
View
Performance improvement in large models for opening views that show sections.
Wall
Improved the ability to attach wall sweeps to walls in some cases where the Cuts Wall property is set, but the wall sweep doesn't actually cut the wall.
Improved Wall Sweeps on Slanted or Tapered walls to ensure that in simple cases the Wall Sweep starts and ends at the bottom and top of the wall, respectively.
Improved the behavior of Wall Sweeps for Slanted and Tapered walls to ensure that in simple cases, the Wall Sweep's bottom and top faces align with those of the wall.
Improved the behavior of Wall Sweeps when Cuts Wall is enabled but the Wall Sweep barely cuts the wall.
Provided the ability to show only wall core layers in a plan view.
Added a driving angular dimension when selecting a slanted wall.
Added the ability to use the standard Revit wall tool to create vertically tapered walls.
Prevented stacked walls from shifting vertically when changing the cross-section from vertical to slanted.
Improved the display of merged layers of elliptical walls in section views.
Allowed the editing of elevation profiles for slanted walls.