We have encountered an issue after upgrading from 3.11.0 to 3.14.3.
Our application is hosted on a subpath (e.g. https://x.x.x.x/abc). After moving onto 3.14.3, we found that after user successfully login via ADFS, the application does not get redirected back to the original destination (i.e. https://x.x.x.x/abc), instead it redirects back to https://x.x.x.x with the subpath missing.
I found a change in 3.12.1 was done to fixed redirect URI corruption, not sure if this is related.