New features and enhancements

• Introduce ui.navigate module to replace ui.open (#2575, #2593 by @ZeroCool940711, @falkoschindler, @rodja)
• Introduce ui.restructured_text element (#2561 by @ZeroCool940711, @falkoschindler)
• Support other tags than div for ui.html (#2610 by @kleynjan)
• Introduce a pure JavaScript event handler (#2383, #2536 by @WSH032, @falkoschindler, @rodja)
• Allow awaiting the "init" event of ui.leaflet (map) and ui.scene (3d) (#2500, #2606 by @elkarouh, @kleynjan, @falkoschindler, @rodja)
• Support GLTF meshes in ui.scene elements (#2532 by @fabian0702, @falkoschindler)
• Add On Air support for ui.run_with (#2526, #2546 by @csrubin, @falkoschindler)

Bugfixes

• Fix binding removal for non-hashable objects (#2540, #2544 by @kleynjan, @falkoschindler)
• Fix order of removing elements when client disconnects (#2589, #2603 by @Johannes-)
• Fix RecursionError when deleting ui.leaflet elements (#2587, #2609 by @thickmn, @falkoschindler)
• Fix layer events and run_layer_method for ui.leaflet (#2500, #2557 by @elkarouh, @kleynjan, @falkoschindler)
• Fix modifiers on key event for ui.interactive_image() (#2530 by @masrab, @falkoschindler)
• Fix .tooltip() ignoring default_classes from ui.tooltip (#2554 by @h0uter, @falkoschindler)
• Raise minimum version of python-multipart to avoid Content-Type Header ReDoS (#2569 by @svfoxat)

Documentation

• Show a content preview when using the search dialog (#2547 by @ZeroCool940711, @rodja, @falkoschindler)
• Use more specific page titles for individual documentation pages (#2583, #2607 by @bandit-masked, @falkoschindler)
• Add tooltips to the search and theme buttons (#2539 by @ZeroCool940711)
• Add a demo for custom icon sets (#2617, #2620 by @me21, @falkoschindler)
• Add a toggleable button demo (#2615 by @rodja)
• Add demo on how to update markdown content (#2584, #2592 by @Anindya088, @falkoschindler, @rodja)
• Add sponsor button to the website (#2572 by @rodja)
• Provide infos about our coding style (#2564 by @rodja)