New features and enhancements

• Introduce app.colors for global color configuration (#3787, #5611 by @ghbm-itk, @evnchn, @falkoschindler)
• Introduce color setters and bindings like set_background_color() and bind_text_color() (#5511, #5512 by @borolepratik, @evnchn, @falkoschindler)
• Introduce ui.on_exception for handling exceptions after the page has been sent to the client (#5617, #5618 by @CatamountJack, @evnchn, @falkoschindler)
• Provide an easy way to replace AG Grid Community with Enterprise (#2431, #5623, #5629 by @ducnva, @luongnv275, @xaptronic, @gioxc88, @evnchn, @falkoschindler)
• Let ui.altair accept any Altair chart type like LayerChart or FacetChart (#5649, #5650 by @s-meza, @falkoschindler)
• Allow passing a path to ui.run(show=...) to open a specific page (#5642 by @jsb-zz, @falkoschindler, @evnchn)
• Make ui.tabs and ui.tab_panels always emit change values as string (#5637, #5638 by @jeffective, @evnchn, @falkoschindler)
• Allow the user to click-to-reload when ui.scene loses the WebGL context (#5360, #5656 by @falkoschindler, @evnchn)
• Suppress Vue component registration warnings for native tags (#3179, #5654 by @jojje, @ksikka, @evnchn, @falkoschindler)
• Patch and warn about late event registrations (#4154, #5439, #5663, #5664 by @Alyxion, @xaptronic, @evnchn, @falkoschindler)
• Break up strong reference cycles in slot children for better garbage collection (#5110, #5644 by @thevinchi, @falkoschindler, @evnchn, @phifuh)
• Reduce initial page payload by omitting unused element properties (#5500 by @evnchn, @falkoschindler)
• Speed-up the websocket handshake process (#5499 by @evnchn, @falkoschindler)

Bugfixes

• Fix CSS not being added correctly when calling ui.add_css after client connected (#5624, #5628, #5666, #5667 by @svhb1000, @falkoschindler, @evnchn)
• Fix ui.dialog being hidden when created inside ui.menu (#4116, #5602 by @tgbl-mk, @evnchn, @falkoschindler)
• Fix ui.leaflet tiles not loading when element is unhidden (#2338, #5614 by @kleynjan, @evnchn, @falkoschindler)
• Fix ui.log scroll-to-bottom in ui.tab_panel (#5118, #5632 by @pandabearcodes, @evnchn, @falkoschindler)
• Fix errors when updating elements on hidden tabs (#5333, #5633 by @natankeddem, @evnchn, @falkoschindler)
• Fix AG Grid memory leak on update and unmount (#5635 by @evnchn, @falkoschindler)
• Fix nested updates in not propagating back to frontend (#5626, #5636 by @s-meza, @evnchn, @falkoschindler)

Documentation

• Add on_path_changed demo and reference for SubPagesRouter (#5487, #5665 by @GinjiJizai, @falkoschindler, @evnchn)
• Fix documentation for native mode settings in packaged apps (#4842, #5651 by @h0uter, @himbeles, @falkoschindler, @evnchn)
• Avoid duplication in methods documentation and use best available docstring (#5630, #5631 by @evnchn, @falkoschindler)
• Fix docs for ui.context.client.connected (#5607 by @jeffective, @falkoschindler, @evnchn)

Testing

• Add a note about limitations for the asyncio_default_fixture_loop_scope setting (#4785 by @gzu300, @evnchn, @rodja, @falkoschindler)

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