Does new wordpress 5.11 support favicon

Yes, WordPress 5.11 does support favicons.

In WordPress 5.11, the wp_head action hook has been updated to include the wp_favicon_url filter, which allows you to specify a custom favicon URL.

You can add the following code to your theme's functions.php file to set a custom favicon:

function my_favicon_url() {
    return get_template_directory_uri(). '/favicon.ico';
}
add_filter( 'wp_favicon_url', 'my_favicon_url' );

This code sets the favicon URL to a file named favicon.ico located in the theme's directory.

Alternatively, you can also use the wp_site_icon_url function to set a custom favicon:

function my_favicon_url() {
    return wp_site_icon_url();
}
add_filter( 'wp_favicon_url', 'my_favicon_url' );

This code sets the favicon URL to the default WordPress favicon.

You can also use a plugin like "Favicon Manager" or "WP Favicon" to manage your favicon settings.

It's worth noting that WordPress 5.11 also includes a new wp_favicon filter that allows you to customize the favicon HTML output. You can use this filter to add custom favicon attributes or styles. For example:

function my_favicon_html() {
    $favicon_html = '<link rel="shortcut icon" type="image/x-icon" href="'. get_template_directory_uri(). '/favicon.ico">';
    return $favicon_html;
}
add_filter( 'wp_favicon', 'my_favicon_html' );

This code adds a custom favicon HTML output to the <head> section of your website.