is this Pack compatible with the new ASP.Net Identity authentication technique and its new database, and know how.
No, the FBA Pack (and SharePoint out of the box) supports the original ASP.NET membership provider. Now theoretically you could write your own membership provider that authenticates using ASP.NET Identity - but I don't believe there is an existing implementation
of this and it would probably be a lot of work. There's some discussion about this here:
http://stackoverflow.com/questions/25971773/asp-net-identity-asp-net-membership-provider-mashup
http://stackoverflow.com/questions/25971773/asp-net-identity-asp-net-membership-provider-mashup
thank you for your fast response.