* Ensure that correct sidebar submenus open when labels use non-Latin alphabets (Matt Westcott)
 * Fix issue where invalid bulk action URLs would incorrectly trigger a server error (500) instead of a valid not found (404) (Ihor Marhitych)
 * Fix issue where bulk actions would not work for object IDs greater than 999 when ``USE_THOUSAND_SEPARATOR`` (Dennis McGregor)
 * Set cookie for sidebar collapsed state to "SameSite: lax" (LB (Ben Johnston))
 * Prevent error on creating automatic redirects for sites with non-standard ports (Matt Westcott)
 * Restore ability to customize admin UI colors via CSS (LB (Ben Johnston))