v0.38.0 - buffer: add some debug logging for number of objects sent - buffer: add a threshold for the estimated size of revision and release batches - buffer: add a threshold for the number of revision parents in one batch - buffer: add a threshold for the number of directory entries in one batch - filter: add filtering for release_add - filter: do not call the underlying functions if there's nothing to add - buffer: Ensure that we don't send data from empty buffers