NHibernate has now a MyGet feed
for latest master builds.
For a list of resolved issues & pull requests in latest build, see the corresponding milestone in milestones
To be able to install NHibernate development builds you need to add additional package source in NuGet options in your IDE:https://www.myget.org/F/nhibernate/api/v3/index.json
Or alternatively you can add/update nuget.config file in top folder of your project with the following content:
Thanks to bahusoid for having done most of the work, and thanks to the other people having helped getting it done.