After updating to version 1.8.2 our custom id generator came crashing down. The "container" parameter of IIdGenerator.GenerateId used to be a MongoCollection instance but now seems to be an InsertOperation whatever that is, the class is internal so there is really no way to use it for anything.

I could not find anything in the release notes and documentation or issues here on Jira to hint at a change. We downgraded to 1.8.1 and it works.

I have attached a small test project that for me shows the error.