For one reason or another Poland has been chosen as the Lollipop testing ground and the Galaxy S5 is receiving a second update in as many weeks. This one patches up issues found in the first version and includes stability and performance enhancements for the most part. New Android 5.0 Lollipop for the Galaxy S5 You can update over the air (Settings > About > Software update) or you can use Samsung Kies. Samsung Galaxy S5 (SM-G900F) owners can also download the firmware and flash it themselves, though at this point it will probably be smarter to wait for the official rollout. The new update weighs in at 371MB and has the following PDA number G900FXXU1BNL7. An official changelog is not...
Source: http://www.gsmarena.com/galaxy_s5_in_poland_getting_a_refined_lollipop_update-news-10496.php