- Hotkeys have been refactored to work with the new eternally-expanding UltraLoadout.
- There are now nine secret bosses to be found, piloting the new Ultracruisers! Overclocked versions of the original classic cruisers :)
- Nuke will now also nuke your GPU! Unlike real-life, the nuclear weapons in Battlecruisers should be used with caution.
- Some new weapons are now a bit better, and can be accessed by players, including the mighty Broadsword UltraGunship.
- You can now access all 12 cruisers.
- Certain Arabic texts are now no longer tnorf ot kcaB.
- Beating the final boss now hints at the secret bosses.
- Huntress Prime's hull is now placed correctly.
- CoastGuard doesn't get lazy no more.
- Nova Artillery and MissilePod both have visible building progress bars.
- Rickshaw is no longer capable of phasing into a parallel dimension.
- Tooltips corrected.
- Tutorial cannot be soft locked through multitasking no mo.
5.1 UltraUpdate!
Source: Steam Community (opens in a new tab)