Version 1.05b is now available.
Crew voices (work in progress) have been added but disabled by default in version 1.05b. To enable them simply open default/hud/default.txt and change LogVoiceVolume=0 to a value between 0-1 for volume.
1.05b addresses major combat issues, including sunk vessels continuing to use sensors as well as improves campaign stability. It also improves the playing of insertion and land strike missions.
Detailed change log can be found at the end of this thread:
http://steamcommunity.com/app/541210/discussions/0/1353742967807455160/