docker v20.10.23 major changes

[xnox]

Older v20.10.17 docker snap is now published in core18/stable channel. It will remain unchanged, and unlikely to receive any future maintainance.

Major Changes:

• snap base upgraded from core18 to core22
• i386 architecture builds dropped
• snapd 2.59.1 or higher is required (currently in beta channel)
• docker versions updated to v20.10.23
• nftables used by default
• compose v2 is now the default and only compose implementation
• deprecated compose v1 removed
• deprecated machine command plugin removed

Currently in beta channel

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This discussion was created from the release docker v20.10.23 major changes.

[xnox]

I think certification is broken, with compose tests failing - but i don't know where they are, to fix them to use composev2 basically.

[xnox]

canonical/checkbox#399 needed

[xnox]

and done.

Promoting to beta.

[xnox]

Published notice to snapcraft forum too https://forum.snapcraft.io/t/docker-v20-10-23-major-updates/34577

[xnox]

Promoting to stable as a phased update