Code arrived on this repo just 4 days ago. Previously, part of the code was released alongside the binary in a tarball.
The wheels of bureaucracy turn slowly
I originally thought it was because they were waiting for the official announcement at the RSA conference before they released the source code but I guess that wasn't it considering it still took them some time.
https://github.com/NationalSecurityAgency/ghidra
I'm curious as to what prevented them from doing that on day one. Any legal issues presumably would have been worked out prior to the announcement. I guess timelines didn't line up :)