Issues

• Exports of Revit 2015 to 2023 files take 1.6 to 3.9 times as long as with 0.11.0

  area:readerpriority:P2type:bug
  DrunkOnJava/rvt-rs#1237 · Filter by author DrunkOnJava opened on Oct 31, 2026 · 0.13.0: IFC geometry and element data
  2

• W7: coverings' GrossArea on ceilings in pieces and cut ceilings, and the roofing coverings (RE-297)

  area:ifcpriority:P1type:feature
  DrunkOnJava/rvt-rs#1209 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility

• W7: single-layer slabs' Width and Length, sloped floors' Depth and the stair landings' volume (RE-295, RE-298)

  area:ifcpriority:P1type:feature
  DrunkOnJava/rvt-rs#1208 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility

• W7: spaces' GrossVolume, stepped rooms' NetVolume and Revit 25's area quantities (RE-296)

  area:ifcpriority:P1type:feature
  DrunkOnJava/rvt-rs#1207 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility

• W7: a joined column's Length, which RE-291 now separates, and the round column

  area:ifcpriority:P1type:feature
  DrunkOnJava/rvt-rs#1203 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility
  1

• Help wanted: outputs only Revit can produce (a DWG export for the second witness edge, API fixtures for extensible storage)

  area:corpushelp wantedpriority:P3type:research
  DrunkOnJava/rvt-rs#1197 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 0.13.0: IFC geometry and element data

• Formats/Latest: classify the residual field encodings and Revit 2027's flagged runtime-state fields from byte evidence

  area:readerpriority:P3type:research
  DrunkOnJava/rvt-rs#1196 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 0.13.0: IFC geometry and element data

• Viewer: show real decode progress, and say clearly when a model is too large for the browser

  area:viewerpriority:P2type:feature
  DrunkOnJava/rvt-rs#1195 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 0.13.0: IFC geometry and element data

• Geometry and element remainders on Revit 2024 and 2025: wall corners, landing undersides, column sections, Areas, room phases

  area:elementsarea:geometrypriority:P2type:feature
  DrunkOnJava/rvt-rs#1194 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 0.13.0: IFC geometry and element data

• W7: the BIM4LCA office's remaining property values without a rule (column Slope, opening Reference, mullion Span, sloped slab PitchAngle)

  area:ifcpriority:P2type:feature
  DrunkOnJava/rvt-rs#1193 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility
  1

• W10: check that every number in the README and the supported profile names its model

  area:docspriority:P2type:test
  DrunkOnJava/rvt-rs#1192 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility

• W6: draw family instances from their saved meshes by default (decode the remaining saved-graphics faces)

  area:geometrypriority:P1type:feature
  DrunkOnJava/rvt-rs#1191 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility

• W2, W6, W7: geometry and properties on Revit 2015 to 2023, 2026 and 2027 projects, beyond each element's box

  area:elementsarea:geometrypriority:P1type:feature
  DrunkOnJava/rvt-rs#1190 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility

• W3: read family (.rfa) and template (.rte, .rft) files like projects: types, parameters and geometry

  area:readerhelp wantedpriority:P1type:feature
  DrunkOnJava/rvt-rs#1189 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility

• W7: type objects' common-set values (IsExternal, LoadBearing, FireRating, Manufacturer) on the BIM4LCA office's types

  area:ifcpriority:P1type:feature
  DrunkOnJava/rvt-rs#1185 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility
  1

• Unfilled openings Revit's export writes and rvt-rs does not: a door's further cuts, curtain-wall cuts and fire hose cabinets (591 values on the office)

  area:geometryarea:ifcpriority:P2type:feature
  DrunkOnJava/rvt-rs#1165 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 0.13.0: IFC geometry and element data

• Native records on Revit 2015 to 2022: the framing is unmeasured, so parameters, phases, types, stairs and saved meshes are read only from 2023

  area:elementsarea:readerpriority:P1type:research
  DrunkOnJava/rvt-rs#1158 · Filter by author DrunkOnJava opened on Oct 30, 2026 · 1.0.0: first-class utility
  1

• feat(saved-graphics): mesh cone faces, spline-profile surfaces and cylinder faces with non-rectangular trims

  area:geometryarea:ifccommunitypriority:P2type:feature
  DrunkOnJava/rvt-rs#1144 · Filter by author n3ur0m4n opened on Oct 30, 2026 · 0.13.0: IFC geometry and element data
  1

• Feature: extract viewports and viewport centers placed on sheets.

  area:readercommunitypriority:P3type:feature
  DrunkOnJava/rvt-rs#1117 · Filter by author Triazic opened on Oct 30, 2026 · 0.13.0: IFC geometry and element data
  10

• Bug: models with a partition stream over 256 MiB open empty, with no error

  area:readercommunitypriority:P1type:bug
  DrunkOnJava/rvt-rs#1075 · Filter by author hemanth1986 opened on Oct 28, 2026 · 1.0.0: first-class utility
  4

• Walls drawn taller than Revit's body on 78 of the BIM4LCA office's walls (RE-257)

  area:elementsarea:geometrypriority:P2type:bug
  DrunkOnJava/rvt-rs#1067 · Filter by author DrunkOnJava opened on Oct 27, 2026 · 0.13.0: IFC geometry and element data
  3

• W7: base quantities Revit computes from its joined geometry (wall areas and volumes, mullion surfaces)

  area:ifcpriority:P1type:feature
  DrunkOnJava/rvt-rs#1046 · Filter by author DrunkOnJava opened on Oct 26, 2026 · 1.0.0: first-class utility
  5

• W7: Revit's base quantities are not measured (52,038 Qto_ values on the BIM4LCA office)

  area:ifcpriority:P1type:feature
  DrunkOnJava/rvt-rs#1016 · Filter by author DrunkOnJava opened on Oct 26, 2026 · 1.0.0: first-class utility
  6

• Roof cases with no oracle: 2024 gables and hips, a square two-cut with a fascia, a slope arrow stopping short (RE-199 follow-up)

  area:corpusarea:geometrypriority:P3type:research
  DrunkOnJava/rvt-rs#885 · Filter by author DrunkOnJava opened on Oct 21, 2026 · 0.13.0: IFC geometry and element data
  4

• Hip roofs over T and U footprints stay level blocks: straight-skeleton split events (RE-199 follow-up)

  area:geometrypriority:P3type:feature
  DrunkOnJava/rvt-rs#884 · Filter by author DrunkOnJava opened on Oct 21, 2026 · 0.13.0: IFC geometry and element data
  1