Latest release doesn't have shortcode function in sidebar

Just this code:

function enable_shortcodes_on_geo_listings($html, $variables_array=array()){
	return apply_filters('the_content', $html);
}

add_filter('geodir_show_geodir_testing_html','enable_shortcodes_on_geo_listings',10,2);
add_filter('geodir_show_geodir_shortcodes','enable_shortcodes_on_geo_listings',10,2);
add_filter('geodir_show_geodir_special_offers','enable_shortcodes_on_geo_listings',10,2);
add_filter('gd_special_offers_content','enable_shortcodes_on_geo_listings',10,1);

This line makes the special offers tab work

add_filter('gd_special_offers_content','enable_shortcodes_on_geo_listings',10,1);

this line

add_filter('geodir_show_geodir_shortcodes','enable_shortcodes_on_geo_listings',10,2);

you had the wrong htmlvar name, you had geodir_show_geodir_html_shortcodes instead of geodir_show_geodir_shortcodes.

The theme update should not affect it.

Stiofan