⚠️ Breaking Changes

• Improve reliability of contextmenu event simulation on mobile Safari by introducing a new TapHold handler, replacing legacy Tap (#7026 by @johnd0e)
• Reorganize DivOverlay/Popup/Tooltip APIs (#7540 by @johnd0e)
  • Move Popup related options from DivOverlay to Popup (#7778 by @Falke-Design)
  • Change Tooltip class from leaflet-clickable to leaflet-interactive (#7719 by @Falke-Design)
  • Map.closeTooltip now requires a layer as argument (#7533 by @johnd0e)
• Improve error / argument handling for event listeners (#7518 by @johnd0e)
• Improve reliability of touch events simulation on non-touch devices (DomEvent.Pointer) (#7059, #7084, #7415 by @johnd0e)
• Improve reliability of dblclick event simulation on touch devices (DomEvent.DoubleTap) (#7027 by @johnd0e)
• Improve reliability of disableClickPropagation (#7439 by @johnd0e)
• Improve Map hasLayer() and LayerGroup hasLayer() to require a layer as argument (#6999 by @johnd0e)
• Fix Class.include to not overwrite options (#7756 by @johnd0e)
• Fix Class.extend to not modify source props object (#6766 by @johnd0e)
• Improve Browser.touch touch devices detection (#7029 by @johnd0e)
• Get rid of legacy Android hacks (#7022 by @johnd0e)
• Allow fonts to respect users' browser settings by making the font-size relative to the map container. (You can change the font size on leaflet-container to adjust it if needed.) (#7800 by @Chandu-4444)

❇️ API changes

• Make DivOverlay / Tooltip interactive (#7531, #7532 by @johnd0e)
• Add openOn, close, toggle functions to DivOverlay (#6639 by @johnd0e)
• Introduce DomEvent.off(el) to remove all listeners (#7125 by @johnd0e)
• Allow preventing round-off errors by passing false to Util.formatNum / toGeoJSON (#7100 by @johnd0e)
• Add autoPanOnFocus to Marker (#8042 by @IvanSanchez)
• Add referrerPolicy to TileLayer (#7945 by @natevw)
• Add playsInline to VideoOverlay (#7928 by @Falke-Design)
• Add getCenter to ImageOverlay (#7848 by @Falke-Design)
• Fire a tileabort event when a TileLayer load is cancelled (#6786 by @dstndstn)
• Add crossOrigin to Icon (#7298 by @syedmuhammadabid)

✨ Improvements

• Improve memory footprint by removing will-change CSS property on tile images (#7872 by @janjaap)
• Improve reliability of icons path detection heuristics (#7092 by @johnd0e)
• Improve performance of adding tiled sources by avoiding excessive updates in GridLayer.onAdd (#7570 by @johnd0e)
• Improve handling of edge cases in panInside (#7469 by @daverayment)
• Minify marker icon SVG (#7600 by @rala72)
• Allow template keys with spaces in TileLayer URL (#7216 by @lubojr)
• Improve behavior of Tooltip bound to ImageOverlay (#7306 by @IvanSanchez)
• Remove the gap between Popup tip and content dialog (#7920 by @Malvoz)
• Fire mousemove through Canvas to map if it has no layers (#7809 by @johnd0e)
• Add print styles to prevent printers from removing background-images in controls (#7851 by @Malvoz)
• Move attribution code from Layer to Control.Attribution (#7764 by @johnd0e)
• Refactor vmlCreate() so that it does not expose closure to TypeError (#7279 by @darcyparker)
• Improve reliability of Control.Layers by not relying on Browser android and touch properties (#7057 by @johnd0e)
• Improve reliability of Tooltip by not relying on Browser touch checks (#7535 by @johnd0e)
• Make Browser mutable for easier automated testing (#7335 by @bozdoz)
• Replace div with span in Control.Layers container to fix an HTML validation error (#7914 by @tmiaa)
• Add a Ukrainian flag to default attribution 🇺🇦 (by @mourner in https://github.com/Leaflet/Leaflet/pull/8109)

🙌 Accessibility

• Increase default font sizes and decrease attribution transparency for improved legibility (#8057, by @mourner)
• Improve accessibility of popup close button (#7908, by @Malvoz)
• Auto pan to markers on focus by default for improved keyboard operability (#8042 by @IvanSanchez)
• Add accessibility section to plugins guide (#7277 by @Malvoz)
• Update Marker to default to role="button" & alt="marker" for an improved screen reader experience (#7895 by @tmiaa)
• Set role="button" for appropriate semantics on the <a> layers control (#7850 by @Malvoz)
• Generally enable outlines for keyboard users by not stripping outline on focus for keyboard events (#7259 by @jafin)
• Enable outlines on leaflet-container for keyboard users (#7996 by @Malvoz)
• Multiple enhancements to popup's close button (#7794 by @Falke-Design)
• Use relative font-size units for resizable text (#7800 by @Chandu-4444)
• Apply :hover styles to :focus as well (#7274 by @Malvoz)
• Hide the decorative attribution separator from screen readers (#7969 by @Malvoz)
• Make the disabled state of zoom controls available to screen readers (#7280 by @akshataj96)
• Hide the +/- characters in zoom controls from screen readers to prevent erroneous announcements (#7795 by @Falke-Design)

🐞 Bug fixes

• Fix vector drift when dragging and immediately zooming (by @manubb @johnd0e @mourner in https://github.com/Leaflet/Leaflet/pull/8103)
• Reduce the occurrence of glitches on rapid zoom (by @mourner in https://github.com/Leaflet/Leaflet/pull/8102)
• Fix Marker jumping position while zooming in certain cases (#7967 by @Falke-Design)
• Fix opening / closing Tooltip while dragging the map (#7862 by @Falke-Design)
• Break the reference to the options of the Class prototype (#7459 by @Falke-Design)
• Improve Tooltip options permanent & sticky to work together (#7563 by @Falke-Design)
• Check if map container is still connected with Leaflet in locate event listener (#7813 by @Falke-Design)
• Fix Tooltip bindTooltip to unbind existent tooltip (#7633 by @Falke-Design)
• Correct if condition, to add zoom limits for Layer (#7609 by @vcoppe)
• GridLayer redraw tiles after changing maxNativeZoom (#6443 by @cherniavskii)
• Fix Popup keepInView if the map needs to panned over a long distance (#7792 by @Falke-Design)
• Tolerate wrong event names in add/removePointerListener (#7808 by @johnd0e)
• Reset width & padding to prevent cascading CSS from breaking tile rendering (#6843 by @Spudley)
• Fix mousedown event calling after dragging Canvas map (#7781 by @johnd0e)
• Decrease console.warn pollution (#7748 by @johnd0e)
• Fix contextmenu event default-preventing when there are >1 target candidates (#7544 by @johnd0e)
• Prevent click on Popup-tip from firing on map. (#7541 by @johnd0e)
• Fix error by calling Path.setStyle before adding the layer to the map (#6941 by @NielsHolt)
• Reset BoxZoom after cancel with ESC (#7597 by @Falke-Design)
• Fix noConflict (#7855 by @Falke-Design)
• Fix popup appearance when content is empty (#8136, by @ansh-ag)
• Fix latLngToCoords and latLngsToCoords not accepting array form of lat/lngs (#7436, by @Relkfaw)

📝 Docs

• Add a new Leaflet accessibility tutorial (#8081, by @Malvoz)
• Upgrade Code of Conduct to Contributor Covenant v2 and improve its visibility (#7984 by @mourner)
• Lint examples (#7827 by @mourner)
• Update usability in Docs (#7982, #7703, #7950, #7906, #7907, #7696, #7816, #7345, #7815, #7948, #7901 by @Falke-Design, @avioli, @Malvoz, @fulldecent, @saerdnaer, @MxDui)
• Typos / Fixes in Docs, Samples, ... (#7263, #7284, #7339, #7349, #7381, #7371, #7485, #7380, #7578, #7758, #7602, , , , by , , , , , , , , , , , )
• Clarify zoomend event (#7460 by @xeruf)
• Add false to prefix of Control.Attribution (#7814 by @Falke-Design)
• LayerGroup inherit from Interactive Layer (#7763 by @johnd0e)
• Improve Map.panInside documentation (#7397 by @daverayment)
• Update Renderer documentation to clarify tolerance option is for Canvas only (#7515 by @Hippl-Eric)
• Add documentation for Event-Listener propagate argument (#7103 by @riffaud)
• Fix an issue with top padding on non-API pages (#8083, by @wyankush)

🔧 Workflow

• Split plugins.md into many files for easier maintenance (#7805 by @Falke-Design)
• Add Bundlemon to watch bundle size (#7934, #7983, #7905 by @jonkoops)
• Add npm run serve to serve docs on localhost (#7973 by @Falke-Design)
• Rename master branch to main (#7921 by @jonkoops)
• Upload files to AWS even if the file-size is the same (#7853 by @jonkoops)
• Remove leaflet-include.js from debug samples (#7776 by @Falke-Design)
• Lint adjustments (#7676, #7743, #7757 by @jonkoops, @mourner)
• Simplify release process (#7711, #7854, #7727, #8039 by @mourner)
• Simplify docs update process on release (#7730 by @mourner)
• Update dependencies and add Dependabot config (#7455, #7653, #7677, #7725 by @jonkoops)
• Split main workflow into multiple parallel jobs (#7710 by @jonkoops)
• Run CI on Github actions (#7691, #7654, #7702 by @jonkoops)
• Continue running tests even if one fails (#7723 by @jonkoops)
• Add https://github.com/Leaflet/Leaflet/labels/blocker check to release process (#8019 by @Malvoz)
• Remove all references of Bower (#7831 by @jonkoops)
• Add GitHub Actions dependency tracking with Dependabot (by @nathannaveen in https://github.com/Leaflet/Leaflet/pull/8104)

🧪 Tests

• Improve unit tests organization (#7852, by @Falke-Design)
• Run tests on Internet Explorer 11 (#7741 by @jonkoops)
• Run tests on FirefoxNoTouch (#7736, #7742 by @johnd0e)
• Drop PhantomJS from test suite (#7660, #7724 by @jonkoops)
• Simplify .near and .nearLatLng usage (#7820 by @johnd0e)
• Enforce forbid-only rule in the continuous integration (#7448 by @johnd0e)
• Increase captureTimeout and browserSocketTimeout (#7856 by @Falke-Design)
• Added / update tests (#7790, #7147, #7721, #7461, #7126, #7451, #7450, #7447, #7438 by @Falke-Design, @johnd0e, )
• Added missing Test-Spec-Files to index.html (#7845 by @Falke-Design)
• Cover DomEvent with unit tests (by @stephenspol in https://github.com/Leaflet/Leaflet/pull/8088)
• Cover DomUtil with unit tests (#7547, by @LGNorris)

🔩 Plugins

• Add / update demo URLs for all plugins, fix broken links (#8003, huge work by @valerio-bozzolan).
• Add / update plugins (#7986, #7956, #7942, #7888, #7896, #7885, #7875, #7874, #7833, #7834, #7832, #7812, #7786, #7802, #6534, #6547, #7367, #7392, #7412, #7631, #7437, #7408, #6500, #7957, #7484, #7236, #7053, #7050, #7312, #7623, #7534, #7626, #7553, #7423, #7619, #7065, #7663, #7690, #7180, #7714, #7665, #7179, #6641, #7647, #7635, #7473, #7471, #7363, #7323, #7295, #7292, #7291, #7257, #7276, #7470, #7700, #7617), #8097, #8096, #8049