There was a slight problem with the initial release, currently we think it may have built from the wrong branch) so Thalassicus released a quick fix.
The quick fix though was uneccessary, due to the wrong branch build so the initial 3.9 release was reverted with a very minor fix to make this production and research error work.
Hopefully.
There are still the policy errors, but at least there is a working copy to help fix it.
And as I type this I see there is a new 3.9.2 release which should be fine.