There's a Reddit post about it, the version is password-locked with the password being " I am aware that these are test builds."
Gather unknown signals from deep, silent space · By
Yea that happened to me when i started playing for the first time this month, i used the yeetpatch installer for linux and saw all the versions and thought "uhhh i guess the newest?" and didnt have that good of a time lmao. 0.8 is still a lot more fun and super stable imo (besides the oven door killing me one time, but that was funny).
Now the script warns me that 0.9.0c is very unstable, so thats gud.
/t/5704781/090c-changelog-from-discord
someone posted it here, in case anyone hasn't seen the post yet
It appears that glowsticks got fixed too hard. If you pick up an attached glowstick with R (stright into your inventory), upon placing it in the world it will attempt to return to it’s previous location. I’ve found that if you disconnect it, place it on the ground, hold it in your hands and then put into inventory, it seems to work ok.