Can't Install 6.0.3 on OSX 10.11.6

I get an error:

“LibreOffice” is damaged and can’t be opened. You should move it to the Trash.

I checked the MD5 on the .dmg file and it seemed fine.

Oops, I did some more thorough Googling and found the answer. I needed to “Allow Apps downloaded from Anywhere” in my security and privacy settings (yikes).

After opening for the first time, I could change the security setting back to something more conservative.