New Go versions available, private module proxy support

Change effective on 15 September 2020

The following Go versions are now available on Heroku:

  • 1.14.9 (will be used when go1.14 is specified)
  • 1.15.2 (will be used when go1.15 is specified)

Additionally, the standard GOPROXY, GOPRIVATE, and GONOPROXY environment variables are respected during builds. This enables use of private module proxies.

For more information, see our page on Go Support.