Songbringer has had a private, closed beta in progress since February 2016.
Here's what has changed in the latest beta update.
-=: Songbringer Beta Version 0.9.8 :=-
[NEW] New story elements explain the tower door
[NEW] Zero guides you after the Songbringer dungeon
[NEW] Dialogue for Velle waking up
[+++] Roq's momentum is maintained when using the lighter
[+++] Ship bridge dialogue trigger area is a little wider
[+++] Fixed some choppiness due to scanning for controllers periodically (which could take up to 100ms)
[+++] Controllers are only scanned for on the "Welcome to Songbringer" screen and the Input menu
[+++] Now shows how many controllers are connected on the "Welcome to Songbringer" screen
[+++] Now checks for a corrupt download on each new version
[FIX] Fixed being able to accidentally walk through the wall in Velle's cave
[FIX] Fixed an issue where a crafting failure could accidentally use up an item
[FIX] Fixed Brutus being able to block cave entrances
[FIX] Fixed the Drobth miniboss being able to spawn on a gate screen and trap the player
[FIX] Fixed the color of some text on the achievements menu
[FIX] Fixed leaderboards not having the correct opacity at first
[FIX] Fixed issues using DS4Windows to have a PS4 controller emulate an Xbox 360 controller
[FIX] If there are 2 or more controllers connected the player is prompted to manually bind controls
[FIX] Controls are never automatically bound for player 2 (must manually set with Settings > Input > Set Player 2 Controls)
[FIX] Fixed glitchiness when trying to bind some kinds of controller axes
[FIX] Fixed the "Welcome to Songbringer" screen accidentally being skipped by initial controller input spike (Windows only)
[FIX] Fixed binding the L2 and R2 buttons on a PS4 controller