v1.4.21

New features and enhancements

• Introduce app.storage.tab as a storage for the current tab (#2837, #2866 by @rodja, @Alyxion, @alexzaech, @falkoschindler)
• Introduce app.storage.client as a storage for volatile data for the current connection (#1308, #2820 by @rodja, @amks1, @sklibanov312, @Alyxion, @falkoschindler)
• Introduce ui.matplotlib element as an object-oriented alternative to ui.pyplot (#2553 by @tacaswell, @falkoschindler)
• Refactor ui.list and ui.menu items (#2855 by @codingpaula, @falkoschindler)
• Automatically await async results in ui.timer (#2856, #2859 by @bmrast, @falkoschindler)
• Add maximize() method for maximizing a native application (#2836 by @Aues6uen11Z)
• Replace check_interval for JavaScript requests with an asyncio event (#2482, #2827 by @pplno, @anjomro, @oidex, @afullerx, @rodja, @falkoschindler)

Bugfixes

• Fix typo in conftest.py (#2857 by @kj4tmp)
• Fix update of ui.leaflet after calling set_center or set_zoom (#2825, #2826 by @thetableman, @falkoschindler)
• Fix update of invisible ui.markdown elements (#2779, #2803 by @me21, @aniketkumar7, @falkoschindler)
• Avoid ignoring dynamic properties starting with a line break (#2845 by @falkoschindler)

Documentation

• Add audio recording example (#1610, #2861 by @rodja, @CVxTz, @falkoschindler)
• Add demos for floating action buttons (#2832 by @rodja)
• Improve the "Chat with AI" example (#2772, #2800 by @merlinarer, @rodja, @falkoschindler)

Others

• Introduce ruff as an isort replacement and code checker with a pre-commit hook (#2619 by @mbrulatout, @codingpaula, @falkoschindler)
• Enable private vulnerability reporting (#2870 by @sunriseXu, @falkoschindler)