The German Alpine Club (DAV) has produced a number of excellent resources concerning climbing and Covid-19.
One sub-site provides access to articles related to climbing during lockdown.
The second, launched on 14 May, deals more closely with the relaxing of measures and guidance for safely returning to climbing and the mountains. Amongst the subjects addressed are the opening of huts (including huts in Bavaria and Austria), how to respect specific rules as well as guidance for different sports and outdoor activities.
The articles are in German. Google offers a direct translation into English.
Over the coming weeks, the UIAA will continue to offer general guidance on how to return safely to climbing and the mountains, and based on the experience of its member associations and expertise of its Commissions.