We're very pleased to announce that NuGet is the latest package format to support upstream caching and proxying.
With upstream proxying, Cloudsmith will allow NuGet clients configured to use your repository to see and download your existing repository packages, as well as all those defined in any connected upstream repositories.
When upstream caching is turned on, fetches made for packages resolved to an upstream can be cached and synchronised to your Cloudsmith repository - helping to protect your software dependencies from outages, improve visibility, and apply fine-grained access controls for your teams, customers and users.
Cloudsmith supports access through both major versions of the NuGet API.
This feature is currently in Beta, and we'd love for you to try it out and give us your feedback. Check out our Upstream Documentation for more information.