v1.9.1

1.9.1 (2026-05-29)

Bug Fixes

• make install self-contained; no SDK required after install (bd8865d)
• resolve ruff E402 and PSScriptAnalyzer unused-variable warnings (51c1d31)

v1.9.0

1.9.0 (2026-05-29)

Features

• add Light and Select Camera submenus to preview pane context menu (c6feedb)

Bug Fixes

• add copy constructor and assignment to CPyObject, CPyString and CPyStringW to resolve C5272 warnings on CPyException throw (e50176d)
• add UTF-16 LE BOM to installer and uninstaller log files (be71a40)
• auto-detect pip-packages directory when [PYTHON] PYTHONPATH is empty or invalid (52cbf46)
• bundle Python runtime and pip-packages, improve installer logging and registry entries (8a0a0c8)
• replace RmShutdown with taskkill /F and add polling for Explorer shutdown and restart (9346600)
• resolve usd.ico from registry when Python exe is outside install dir (ee14f28)
• stage python and pip-packages directories for installer build (c1a4209)

Performance Improvements

• throttle concurrent thumbnail renders to 3 slots via named semaphore (0db6bb3)

v1.8.0

1.8.0 (2026-05-27)

Features

• display time-based status messages on the preview load screen (b59e5f2)

Bug Fixes

• add Defender exclusion during install and Restart Manager unlock for python312.dll (d69b9b2)
• correct thumbnail camera orientation and restore PBR materials (81c0e21)
• nsis: add Defender exclusion and DLL lock wait before uninstall deletion (05691bf)
• rebuild Hydra Renderer context menu on right-click (3db837d)
• release USD stage on preview quit and fix uninstaller registry/explorer restart (4ef670d)
• release USD stage on preview quit and fix uninstaller registry/explorer restart (d43112f)
• resolve PSScriptAnalyzer warnings in install and uninstaller scripts (885b2ed)
• run UsdThumbnailScript as Python subprocess to fix WGL renderer init (5e0d1f7)
• use robocopy /PURGE for pip-packages to handle locked qwindows.dll (0d48d78)

v1.7.0

1.7.0 (2026-05-25)

Features

• add -Installer switch to build.ps1 for NSIS packaging (1e3f8cb)

Bug Fixes

• declare COMMONAPPDATA var and remove usd_ms.dll from NSIS installer (ff331e9)
• installer config paths — All Users uses ProgramData, add Python PATH field (6a0823c)
• use regsvr32 /n /i:"/force" in NSIS installer to bypass Python verification in DllRegisterServer (841beaf)

v1.6.0

1.6.0 (2026-05-25)

Features

• add Diff command for two-file USD comparison via usddiff (8e0f58e)
• add OpenUSD Documentation link to context menu (c8f894b)
• batch validate for multi-file selection (Validate, Fix, Layer Stack) (05832b2)
• group format conversions under Convert to... submenu (e263f18)

v1.5.0

1.5.0 (2026-05-25)

Features

• add animation timeline to preview pane (3669840)
• add persistent prim path bar with placeholder in preview pane (9aab91f)
• add prim path display on hover and left-click selection in preview pane (95c46f2)
• add Stitch Layers command for multi-selection USD files (58a005c)
• add Unpackage command for .usdz files (a684134)
• add usd-shell.ps1 utility to configure USD environment (6549a2c)
• add Validate, Fix and Layer Stack context menu commands (5628800)
• add Validate, Fix, Layer Stack, Stage Stats context menu commands (5745b7d)
• first commit (9f02dc5)

Bug Fixes

• correct FriendlyTypeName for usda/usdc/usdz and remove PropertyStore noise (4b0f9ff)
• fix PySide6/USD 25.08 compatibility in preview handler Python script (649d58d)
• handle locked DLLs and Windows Search in install.ps1 (d00c248)
• improve console pause and stage stats output in UsdSdkTools (66ae2db)
• kill Explorer before polling python312.dll lock in install.ps1 (895e5d9)
• open USD files with FILE_SHARE_DELETE in ArResolver (8ec75d0)

v1.4.0

1.4.0 (2026-05-25)

Features

• add Stitch Layers command for multi-selection USD files (f11d802)
• add Unpackage command for .usdz files (e794fa0)
• add Validate, Fix, Layer Stack, Stage Stats context menu commands (2237c5e)

Bug Fixes

• correct FriendlyTypeName for usda/usdc/usdz and remove PropertyStore noise (6063d47)

v1.3.0

1.3.0 (2026-05-23)

Features

• add animation timeline to preview pane (3669840)
• add usd-shell.ps1 utility to configure USD environment (6549a2c)
• add Validate, Fix and Layer Stack context menu commands (5628800)

Bug Fixes

• handle locked DLLs and Windows Search in install.ps1 (d00c248)
• improve console pause and stage stats output in UsdSdkTools (66ae2db)
• kill Explorer before polling python312.dll lock in install.ps1 (895e5d9)
• open USD files with FILE_SHARE_DELETE in ArResolver (8ec75d0)

v1.2.0

1.2.0 (2026-05-22)

Features

• add persistent prim path bar with placeholder in preview pane (9aab91f)
• add prim path display on hover and left-click selection in preview pane (95c46f2)

v1.1.1

1.1.1 (2026-05-22)

Bug Fixes

• fix PySide6/USD 25.08 compatibility in preview handler Python script (649d58d)