napari: a multi-dimensional image viewer for Python

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napari 0.8.0 Sun, Jul 12, 2026 We're happy to announce the release of napari 0.8.0! napari is a fast, interactive, multi-dimensional image viewer for Python. It's designed for browsing, annotating, and analyzing large multi-dimensional images. It's built on top of Qt (for the GUI), vispy (for performant GPU-based rendering), and the scientific Python stack (numpy, scipy). For more information, examples, and documentation, please visit our website, https://napari.org. napari follows EffVer (Intended Effort Versioning); this is a Macro release containing awesome new features, but may require dedication of some significant time when upgrading projects to use this version. Highlights Add floating axes canvas overlay (#8262) Histogram for the Image layer controls and contrast limits popup (#8391) Unify use of theme colors (#8927) [Shapes] When using Shift to draw circle/square, allow shape to grow in direction of mouse drag (#9018) Theme colors adjustments (#9078) Add information about PyQt5 deprecation (#9079) Drop Python 3.10 and implement 3.11+ changes (#9104) Selectable camera modes with Separate (default) and Shared views across ndisplay (#9151) New Features Add floating axes canvas overlay (#8262) Histogram for the Image layer controls and contrast limits popup (#8391) Selectable camera modes with Separate (default) and Shared views across ndisplay (#9151) Improvements Add handler for show message when napari fails to import (#8609) UX: Add viewer mouse binding (alt) to the scroll wheel to scroll layers (#8731) Make tips more generally usable (#8762) Add handler to show message when napari fails to import (#8803) Unify use of theme colors (#8927) Make multiscale level labels static to avoid delayed updates (#9006) Accept pathlib.Path in reader and writer plugin utilities (#9042) Fix: adapt frame box upper bound to data size (allow >6-digit indices) (#9064) Theme colors adjustments (#9078) feat: add metadata submenu to the layers menu (#9107) Enable clickable links for tips that have URLs (#9114) Use level-0 extent for multiscale bounding box overlay (#9142) Show active level in Auto entry of multiscale combobox (#9143) Performance [Labels, Perf] Refactor painting to use masks and bounding boxes (#8636) Bug Fixes Make multiscale level labels static to avoid delayed updates (#9006) Gate drag_to_zoom to pan/zoom mode or no layers selected (#9016) [Shapes] When using Shift to draw circle/square, allow shape to grow in direction of mouse drag (#9018) Fix: adapt frame box upper bound to data size (allow >6-digit indices) (#9064) Fix half-voxel offset (#9065) make LabelColorMapBase deep-copyable (#9069) Make Wayland XCB/GLX workaround modular for non-NVIDIA GPUs (#9070) Fix colorbar box (#9071) Remove stretch from features table widget layout (#9099) Limit dims scroll to 1 step at a time (#9117) Fix get_status for RGB images in 3D display mode (#9135) Fix problem with ignoring annotation when drag and drop (#9136) Fix multiscale _set_view_slice when switching to 3D (#9141) Use level-0 extent for multiscale bounding box overlay (#9142) Guard against stale index for layer paint methods (#9149) Fix: Restore tooltip symbol QSS after #9003 (#9161) API Changes Remove compat.py (and StrEnum export), update imports, and remove case-insens lookup (#9133) Deprecations Next round of deprecation for scale_bar.unit (#9029) Documentation Up-to-date compile constraints instructions (docs#1043) Update version_switcher for 0.7.1 (docs#1044) Fix formatting in version_switcher.json (remove spurious comma) (docs#1045) Update pre-commit config, apply rules (docs#1046) python >=3.11 for all docs references (docs#1052) Add tip to use -h or --help flags with the compile_constraints.sh script (docs#1053) Remove github-advanced-security[bot] from list of reviewers of 0.7.1 (docs#1055) Add initial release notes for 0.8.0 (docs#1056) Update README with links for the dev and published docs (docs#1058) Feature documentation for image layer histogram (docs#1059) examples: remove deprecated scale_bar.unit and enable viewer.scale_bar.visible = True (#9012) Other Pull Requests Fix linkchecker action constraints to file for py312 (docs#1048) [pre-commit.ci] pre-commit autoupdate (docs#1050) Use shared workflow for remove ready to merge label (docs#1054) Prevent selection from overwriting feature_defaults (#8769) Use Qt6 colorScheme to detect system theme (#8904) Remove check of Qt version that disable gradient in themes (#8961) QSS cleanup: remove plugin manager qss and some even older plugin sorter qss (#9003) typing: add type annotations to _tracebacks.py (#9011) Update dask, hypothesis, ipython, matplotlib, pytest, tqdm, virtualenv (#9036) [pre-commit.ci] pre-commit autoupdate (#9040) [Maint] Remove unneeded _set_highlight calls in Shapes key and mouse binds (#9060) Fix flaky fullscreen test: skip on all Qt >= 6.9.0 (#9074) [pre-commit.ci] pre-commit autoupdate (#9080) ci: trigger dependency check on PR edits (#9084) Add -h | --help arguments to compile_constraints.sh (#9090) Actually use pride logo (#9091) fix(typing): fix mypy error in qt_list_view.py (#9093) fix(typing): add typing and fix mypy error in qt_tree_view.py (#9094) fix(typing): add typing and fix mypy error in screenshot_dialog.py (#9095) fix(typing): add typing and fix mypy errors in tree/group.py (#9096) fix(typing): add typing and fix mypy errors in debugging.py (#9097) fix(typing): add typing and fix mypy errors in custom_types.py (#9098) fix(typing): add typing and fix mypy error in qt_tooltip.py (#9101) fix(typing): add typing and fix mypy error in qt_spinbox.py (#9102) fix(typing): add typing and fix mypy error in qt_scrollbar.py (#9103) bump numpy to 2.5.0 in mypy constraints to fix [unused-ignore] errors (#9106) fix(typing): add typing and fix mypy errors in qt_range_slider_popup.py (#9108) fix(typing) : add typing and fix mypy error in qt_progress_bar.py (#9109) fix(typing): add typing and fix mypy error in qt_message_popup.py (#9111) fix(typing): add typing and fix mypy error in qt_font_size.py (#9112) fix(typing): add typing and fix error in qt_dims_sorter.py (#9113) Use shared version of label clean workflow (#9116) [pre-commit.ci] pre-commit autoupdate (#9122) fix(typing): add typing and fix mypy error in qt_about.py (#9125) Minimum support for zarr>=3 for builtins (#9134) Stop using pickle when copying/pasting spatial features of layer (#9146) Remove image_reader_to_layerdata_reader (#9147) Remove color_dict_to_colormap (#9148) QApplication mouse event to trigger event filter of test_toggle_menubar (#9152) Remove pyautogui and update failing tests on Windows-Qt6 (#9153) gitignore various agent related file names (#9154) Update certifi, coverage, fsspec, hypothesis, ipython, npe2, pillow, pydantic-settings, pytest, pytest-rerunfailures, scipy, tqdm, virtualenv, wrapt (#9158) macos-15 runner instead of macos-latest (now macos-26) to prevent segfaults (#9162) Remove method and functions marked for removal in 0.8.0 (#9177) 16 authors added to this release (alphabetical) (+) denotes first-time contributors 🥳 Aniket - @Aniketsy Anwai Archit - @anwai98 + Carlos Mario Rodriguez Reza (docs) - @carlosmariorr Caroline Malin-Mayor - @cmalinmayor Grzegorz Bokota (docs) - @Czaki Imaduddin Sheikh - @isheikh8492 + Kabilar Gunalan - @kabilar Kyle I. S. Harrington - @kephale Lorenzo Gaifas - @brisvag Mikkel Roald-Arbøl - @roaldarbol + Omkar Kabde - @omkar-334 + Peter Sobolewski (docs) - @psobolewskiPhD Rupesh - @Rupeshhsharma + Teun Huijben - @TeunHuijben + Tim Monko (docs) - @TimMonko Tony Reksoatmodjo - @Modjular + 16 reviewers added to this release (alphabetical) (+) denotes first-time contributors 🥳 Aniket - @Aniketsy Carlos Mario Rodriguez Reza (docs) - @carlosmariorr Carol Willing - @willingc Caroline Malin-Mayor - @cmalinmayor Draga Doncila Pop - @DragaDoncila Gabriel Selzer - @gselzer Grzegorz Bokota (docs) - @Czaki Imaduddin Sheikh - @isheikh8492 + Jacopo Abramo - @jacopoabramo Juan Nunez-Iglesias - @jni Kyle I. S.

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