Freedesktop SDK 20.08 release candidate 1

[Stephan Bergmann]

On 16/08/2020 12:58, Valentin David wrote:
> We have released the first release candidate of Freedestkop SDK for 
> 20.08. We hope that application developers can test this before we release.

See 
<https://github.com/flathub/org.freedesktop.Sdk.Extension.openjdk11/pull/12> 
"Provide a 20.08beta version", in case anybody else needs that extension 
for their test builds.