Version 1.2.1 contains several bug fixes, some optimizations, and a few new features, including the highly requested autosaves!

The full changelog from version 1.1 follows:

Bug fixes
Fix unlocking of "Cold Steel Conqueror" achievement. (Note: should retroactively unlock as soon as you start the game if you fulfill the prerequisites)
Fix potential crash in specific combination of circumstances (when offline).
Fix MSAA depth sampling API compliance.
Fix repeated keypresses at high (unlocked) framerates.
Input should now behave as expected up to at least 250 FPS.
Fix some minor text/linebreak issues (more to come!).
Fix one potential cause for sporadic crashes on some systems.
[Japanese version] Fix button prompt setting not applying to Japanese version (all prompts should now be correct, but the explanatory notes are not yet handled)

Optimization
Improved the performance of the Depth of Field implementation, especially with MSAA.
(basic DoF should be improved by around 10% with 4xMSAA, high quality DoF should be improved by up to a factor of 3)

New Features:
Added Autosaves. The autosave interval can be configured in the launcher.
Added "Ultra" shadow resolution option between "High" and "Absurd".
Added a "Quit Game" option to the main menu 
(though why would you want to quit? ;)