• Add the <Empty> component, an invite to create the first record when the list is empty (4113) (m4theushw)
• Add sticky header to <Datagrid> (4309) (fzaninotto)
• Display skeleton during <SimpleList> initial load (4292) (djhi)
• Delay skeleton display in <Datagrid> and <SimpleList>, a la Suspense (4294) (djhi)
• Force helper text height in all <Input> components to avoid form layout changes upon validation (4364) (JulienMattiussi)
• Reduce the default app weight by removing the image background on the Login screen (4342) (ThieryMichel)
• Add ability to customize the icon in the <Logout> button (4229) (steurt)
• Add ability to customize <Empty> styles using the theme (4293) (WiXSL)
• Add <NullableBooleanInput displayNull prop to force the dislay of the null option (4365) (JulienMattiussi)
• Add explicit error in useDataProvider hook when the dataProvider throws a sync error(4291) (fzaninotto)
• Export Reference Utilities (4338) (djhi)
• Ensure useEditController specifies a default redirect to its caller (4339) (djhi)
• Convert <Menu>, <MenuItem>, and <DashboardMenuItem> components to TypeScript (4266) (steurt)
• Fix menu size in latest version of material-ui (4374) (fzaninotto)
• Fix Autocomplete selection display with custom Component (4367) (JulienMattiussi)
• Fix interface name starting with a lowercase letter in ReferenceFieldController (4163) (WiXSL)
• [Doc] Fix urls in 3.1.4 changelog (4379) (WiXSL)
• [Doc] Add PostgREST data provider to the list of third-party providers (4380) (scheiblr)