Sitecore Publishing Service
The Publishing Service is an opt-in mechanism for high-performance publishing in large scale Sitecore setups.
We have discovered an issue with some of our Developer downloads. Out of an abundance of caution we have temporarily disabled download ability while we address this issue. We hope to have access available as soon as possible; in the meantime please work with your customer support / account executive representative to get the access you need.
For information on how to file a support case, please refer to this article