15.7.0-canary.9

Patches

• [now update] Add message saying that Windows is not supported: #2493
• [now dev] Set "must-revalidate" cache-control response header: #2499
• [now dev] Add etag response header for Lambda invocations: #2502
• [now dev] Allow cache-control header to be overwritten: #2501
• Use v3 user tokens API: #2482

Credits

Huge thanks to @TooTallNate and @OlliV for helping!