pyRevit Release 6.4.0 👏 Link to heading

Thanks to @Wurschdhaud, @tay0thman, @dnenov, @thumDer, @Denver-22, @OnePowerUser88, @vinnividivicci, @sweco-beb283, @jchristel, @924312, @jmcouffin, @thanhtranarch for the support, issue management, improvements and fixes.

Installers Link to heading

pyRevit

• pyRevit 6.4.0 EXE (preferred)
• pyRevit 6.4.0 Admin EXE

CLI

• pyRevit CLI EXE(preferred)

Following installers are available at bottom of the page:

• pyRevit CLI Admin EXE
• pyRevit CLI Admin MSI

Highlights Link to heading

• Match History Clipboard: Dockable pane storing up to 50 parameter name/value pairs with regex search, three load sources (element picker, view filters, eyedropper), three paste modes, category filtering — plus color value pick improvements and richer filter visualization. (#3185, #3197, #3206, #3280)
• Pick Elements by Parameter Value: New selection tool — pick a reference element, choose parameters, and rectangle-select matching elements; shift-click requires all values to match. (#3200)
• Keynote Manager overhaul: Modeless window, unified tree with drag-and-drop, text case conversion menu, debounced search, and ADC compatibility fix. (#3136)
• View Range Editor: Warns when view range is template-driven; edits apply directly to the view template. (#3155, #3192)
• Rocket Mode: New rocket_mode config option skips icon pre-loading for faster startup. (#3121)
• Revit 2027 support: Addin manifest path fix, updated hosts list, and ADC v2027 compatibility with three-tier filesystem fallback for .NET 8. (#3277, #3266)
• C# Loader performance: Loader now matches legacy IronPython load times — config and metadata caching, reduced per-file I/O, and icon pre-loading removed from the hot path. (#3268, #3270)
• C# Loader reliability: Multi-pass loading restored, digit-prefixed class name fix, duplicate class deduplication, version filtering, layout allowlist, F1 help parity, and WndProc crash fix. (#3188, #3179, #3111, #3134, #3281)
• WPFPanel parity: _WPFMixin shared by WPFWindow and WPFPanel; panels now support load_xaml() with locale and resource dictionaries. (#3177, #3146)
• IFC export helper: ifc.py extended with config loader, export-options builder, and single-call IFCExporter. (#3147)
• Output window: Ctrl+C and Ctrl+A keyboard shortcuts in ScriptConsole; fixed pyRevit/IronPython version showing “Unknown” on startup. (#3258, #3260, #3262)
• UpdaterListener: Now triggers on element addition and deletion, not just modification. (#3139)
• Logging level fix: pyRevit logging enum correctly translated to Python scale — no more unwanted console output on startup. (#3207)

Changes by Folder / Tool Link to heading

extensions/pyRevitTools.extension Link to heading

Match, Pick, Selection, ViewRange, Keynote, SectionBox, ColorSplasher, ReNumber, Measure

• Match History Clipboard: Persistent dockable pane with clipboard history, regex search, element/filter/eyedropper load sources, three paste modes, category awareness; companion Match Value Picker tool; shared lib/match/ library eliminating duplication. Color value pick now stores ElementId in a unified format; color helpers added to filter_utils for better filter detection and warning bar color control. (#3185, #3197, #3206, #3280)
• Pick Elements by Parameter Value: Rectangle-based selection filter matching parameter values from a reference element; shift-click mode for multi-parameter matching; ParamDef extended with value badge and tooltip fixes. (#3200)
• Keynote Manager: Modeless window architecture, unified hierarchical tree with drag-and-drop, text formatting menu (UPPER/lower/Title/Sentence), debounced search, UUID-based temp keys, null-safety, ADC ReadOnlyList monkey-patch. (#3136)
• View Range Editor: Template-driven warning dialog before editing; edits applied to the view template directly; correct level ID handling for templates vs views. (#3155, #3192)
• Section Box Navigator: Store set values across doc switching; levels-at-0 fix; additional bugfixes for document switching (#3145, #3130, #3261)
• Temp View mode: Warning displayed when the view phase is not changeable. (#3274)
• ReNumber: Shift+Click duplicate handling; restore non-integer support; switch to EXEC_PARAMS.config_mode. (#3127, #3120, #3125)
• 3D Measure: Improvement pass. (#3124)
• Convert CAD Import: Robustness improvements for FreeForm/DirectShape conversion. (#3126)
• ColorSplasher / Isolate: Visually distinct color generator added to lib. (#3165)
• ViewRange tool: Prevent duplicate windows, close crash fix, invalid value validation, DirectContext3D race condition fix, engine config correction. (#3240)
• Copy Sheets: Preserve view title position and extent when copying sheets. (#3186)
• ws4links: Script update. (#3143)

extensions/pyRevitCore.extension Link to heading

Extensions, Settings

• Settings window: Section headers, separators, and slider control added. (#3132)
• Load Beta Tools: Fix setting + HelpUrl support improvement. (#3116)

extensions/pyRevitDevTools.extension Link to heading

• Developer Sample Panel: Full-featured WPF pane example with inline docs, XAML, and locale resource dictionaries. (#3177)
• IFC export test script: Folder/config picker and output panel logging. (#3147)

extensions/extensions.json Link to heading

• T3LabLite extension added. (#3208)

pyrevitlib/pyrevit/forms Link to heading

• _WPFMixin refactor: Shared WPF behavior (resources, locale, UI helpers, dispatcher) extracted; WPFPanel brought to feature parity with WPFWindow via load_xaml(); resource setup ordering fixed. (#3177, #3146)
• StaticResource crash fix in forms loader. (#3123)
• CPython compat fix. (#3115)
• select_parameters: Enriched with current value display and richer metadata; ParamDef extended; ParameterItemStyle.xaml updated with value badge. (#3200)
• Locale-specific copied view detection fix. (#3175)

pyrevitlib/pyrevit/revit Link to heading

• query.py: get_name() updated with worksets support. (#3187)
• events.py: UpdaterListener now registers element addition and deletion triggers. (#3139)

pyrevitlib/pyrevit — Lib Utilities Link to heading

• ifc.py: Extended with load_config(), build_export_options() (decimal-separator workaround), and IFCExporter class. (#3147)
• Distinct color generator: Greedy max-distance RGB algorithm, IronPython 2.7 compatible, deterministic seed support. (#3165)
• elements_bounding_box: Optional elements argument for get_value_range. (#3128)
• Mesh: Optional color override for Mesh.from_solid. (#3169)

pyrevitlib/pyrevit/routes Link to heading

• Safe JSON serializer: Unicode-safe fallback for IronPython 2.7; handles NaN/infinity as null; float edge cases. (#3161)
• Content-Length fix: Consistent byte encoding and single accurate header, fixing issues with Routes in localized Revit. (#3161)

dev/pyRevitLoader — C# Loader / Session Manager Link to heading

• Performance: Cached PyRevitConfig.Load() as a static singleton, cached Roslyn MetadataReference list, replaced per-extension AppDomain scans with pre-built HashSet lookup — loader now matches legacy load times. (#3268, #3270)
• WndProc fix: Pre-cached .NET types restored to prevent IronPython crash in dockable pane message handling. (#3281)
• Multi-pass loading restored: All extension assemblies load before startup scripts execute, fixing cross-extension imports. (#3188)
• Digit-prefixed class names: Underscore prefix for names starting with digits (invalid C# identifiers). (#3188)
• Duplicate class deduplication: HashSet guard prevents Roslyn CS0101 errors. (#3188)
• Layout allowlist: layout field in bundle.yaml now acts as a strict allowlist, matching Python loader. (#3111)
• F1 help parity: Template substitution, auto-discovery, relative path resolution for help URLs. (#3111)
• Revit version compatibility: min_revit_version/max_revit_version filtering at extension and component level. (#3134)
• Dynamo engine defaults: automate and clean default to false. (#3179)
• SVG icon filtering: BitmapImage skips SVG, prefers raster formats. (#3179)
• Environment variable expansion: %USERPROFILE% and similar variables resolved in extension paths. (#3179)
• Logging level translation: pyRevit enum mapped to Python logging scale (Quiet=WARNING, Verbose=INFO, Debug=DEBUG). (#3207)
• Rocket Mode: rocket_mode config skips icon pre-loading for faster startup. (#3121)
• AppDomain session environment dictionary populated. (#3122)
• Command Control Id exposed in session manager. (#3133)
• Toolbar disappearing fix after reload when tabs are renamed. (#3183)
• SPECIAL_CHARS sanitization restored in SanitizeClassName. (#3184)
• Docstring and tab visibility logic enhanced. (#3190)
• MinifyUI state desync fix on cross-model view switch. (#3196)
• Extension install path fix (not changeable). (#3198)
• _script/.script.py file extensions allowed. (#3131)
• Ribbon fixes: Tab downgrade, combobox crash, keys/values return, tooltip error message. (#3202)
• Version display fixed: pyRevit and IronPython version no longer shows “Unknown” in output window. (#3260, #3262)

dev/pyRevitLabs (TargetApps.Revit, Runtime, CommonUtils) Link to heading

• Revit 2027 addin path: Fixed all-users addin manifest path for Revit 2027+. (#3277)
• ADC v2027 compatibility: Three-tier filesystem fallback for .NET 8 when ADC removed the compatible API DLL — Public API → Legacy API → process detection + workspace directory walking. (#3266)
• Storage file handling: Refactored to use RootStorage class with improved stream reading and error handling (OpenMCDF v3). (#3244)
• LoadBeta config: Canonical loadbeta key with legacy load_beta fallback; IniRemoveKey added. (#3269)
• Extension path handling: Offline path preservation fixed; case-insensitive path deduplication on Windows. (#3259)
• Dependency resolution: Improved .NET Core assembly resolution to prevent loading conflicts. (#3255)
• Dependency updates: YamlDotNet v16, OpenMCDF v3, ControlZEx v7, NUnit v4, libgit2sharp 0.31.0, Microsoft.CodeAnalysis 4.11.0.

ScriptConsole / Output Window Link to heading

• Ctrl+C / Ctrl+A shortcuts: Copy selection and select-all now work in the ScriptConsole output window. (#3258)

dev/pyRevitTelemetryServer Link to heading

• Go dependency updates: go-sql-driver/mysql, go-sqlite3, lib/pq, gorilla/mux, gofrs/uuid, posener/complete v2, edwards25519.

Docs / CI / Build Link to heading

• pyrevit-hosts.json: Revit 2023.1.9, 25.4.41.14, and 2027 versions added.
• Python version updated to 3.14 in Pipfile.
• GitHub Actions: Workflow improvements, trusted-signing-action updates, release process enhancements.

Full PR List Link to heading

Contributors Link to heading

@vinnividivicci, @924312, @jchristel, @dnenov, @jmcouffin, @tay0thman, @Denver-22, @thumDer, @sweco-beb283, @OnePowerUser88, @Wurschdhaud, @thanhtranarch