Out Of Memory Exception thrown while querying using UnitOfWork.Query

I recently upgraded from LightSpeed 3.1 to 5, and noticed a breaking change in one of my repository methods. I'm assuming this is a breaking change because the same code works in LS3.1. Here is a quick synopsis:

    public IList<TEntity> FindAll(Func<TEntity, bool> predicate) 
    {
        if (predicate == null) 
            throw new ArgumentNullException("predicate");

        return (from activity in InternalUnitOfWork.Query<TEntity>()
                  select activity)
                  .Where(predicate).ToList();
    }

The Entity I'm querying for has no navigational properties, just regular CLR properties. However, there are about 1million records in the database. *I know its a good practice to filter on the server, rather than on the client side *. I would like to know what features have changed from the earlier versions of LS that would cause such a behavior.

Thanks, M

There is no functional difference in terms of whats going on to return the list of entities here, however I am guessing that there will be a slightly higher memory footprint for an entity due to the additional features added since LightSpeed 3.

Jeremy

Thanks for clearing that up!