I believe it may be beneficial to merge these packages together such that there's higher cohesion between the types that are used between BSON and extended JSON. This seems to be the trend among other drivers' BSON packages. This could result in easier maintenance as well as a better guarantee that testing changes affects a single package in its entirety. I've found it difficult to track down what behavior lives where when bugs have appeared in one or both packages and this should simplify that process.