This is a proxy only release.
This release fixes a bug in the distributed retrieval client. Previously, there was an edge case that could sometimes cause the client side code to double-count some chunks as they were downloaded. This could cause the distributed retrieval client to abort a download prematurely. Data was not lost, but it might take multiple attempts to fetch it.
We have identified the problem, reproduced the race condition in unit tests, and fixed it.
Due to the high uptime of the relay service historically, we suspect this has not had a significant impact on end user experience. We advise users of the distributed retrieval client to upgrade, however, so that they do not have a bumpy experience if the relay service is disrupted.
This release is the same as 2.4.0, plus a single bugfix commit.