linq-to-lucene

Are the LinqToLucene and the Lucene.Net.Linq projects different? What are the pros and cons of each of them? Since I found Lucene.Net.Linq to be updated more recently relative to LinqToLucene and it is available in nuget I want to use it in my simple project, but I came across lack of documentation and I can't find how can I use lucene advanced queries with this package like what are possible in LinqToLucene for example: var query = from c in index.Customers where c.Like("amber") || c.CompanyName.Between("a", "d") where !c.CustomerId == "Jason" If this extension functions aren't available then