Check out the details here: https://youtu.be/fgqlQVpI9Xc
Blog post available here: http://blog.wolfire.com/2017/09/Overgrowth-Beta-5-video-changelog
Full change log is available here: https://docs.google.com/document/d/1332pAglqebOMYaxQZTqtO7jIYzmRKKfRkF7bLi6L1cg/edit?usp=sharing

Abridged Changelog:

Gameplay
- Added game difficulty presets to Top Bar -> Settings -> Game (Casual, Hardcore, Expert)
- Added the new Overgrowth story to the mods menu, for people who want to play it before it is complete
- Made dogs throw weapons again, but now only within a certain range to prevent player fleeing
- Several small enhancements to make stealth more interesting (harder, but a bit more effective)
- Made it easier again to fight wolves with weapons
- Added death hint support, with the particular hint chosen based on how the player died
- Added ? or ! symbol over characters that you can talk to (configurable per level/character)

Editor
- Added player invincibility setting to Top Bar -> Settings -> Debug
- Added setting in Graphics -> Debug to disable fog, so you can more easily edit levels without messing up the fog setting
- Added "ragdoll" collision painting option, which automatically ragdolls characters that touch the painted surface
- Added per-level settings for color saturation, under Scenegraph -> Level -> Script params
- Added "Stick To Nav Mesh" option to characters, to keep enemies from running off lethal cliffs
- Added support for loading text and background images to be displayed while a level is loading
- Kill hotspots can now be set to only kill NPCs, only players, or both
- Added several new idle animations

Performance
- Many more assets are now pre-loaded to reduce hitching from asset loads during gameplay
- Added checkboxes to disable level shaders and GPU particle fields
- Added "simple water" option to Top Bar → Settings → Debug → Graphics, it disables screen space reflections for water

Graphics/Sound
- Improved dialogue graphics, and support for custom color/sound for each character
- Added victory/death music stings in new campaign
- Added camera Depth of Field effects to dialogues and when you take damage
- Improved choke-out, sword, and knife animations
- Added screen space refractions to raindrops, and added time-based squash and stretch

Bugfixes
- Fixed Versus camera flipping. It may look straight down at combattants, but should no longer flip upside down
- Fixed menu UI resizing when resolution is set through settings menu
- Fixed render problems for lighting/shadow of plant detail objects

New Overgrowth story
- Most levels: Added new loading screen text and loading screen images
- Most levels: Final draft of story - updated character dialogues
- Most levels: New music tracks
- Arena levels: Added crowd cheering, with cheering level based on your performance in the arena
- Most levels: Tweaked shaders, improved environment art and lighting, customized NPCs/enemies more, made gameplay tweaks

If you find any bugs, please email a full description along with your system specs to bugs@wolfire.com.