The Select function was fixed to handle a default (empty) arch properly.

Support hints on slices. Hints provide optional, concise and unopinionated discriminators to help the user select slices. Hints are defined in slice definition files, in an optional hint field under slices.<slice-name>.

In the chisel find command output, the Summary column is replaced by Hint. As before, the absence of hints is expressed as a dash (“-”). To ensure a proper display, chisel ensures hints are of maximum length 40 characters and do not contain line breaks.

Hints are also visible in the chisel info command output if defined

Simplify and clarify ubuntuIndex.fetch implementation. Makes it more consistent with existing tools and reduces assumptions on the structure of the archive.

Added benefit: Avoid requesting URLs detected as potential path-traversal attacks, triggering security proxies.

Format v3 uses a map instead of a list for essential and deprecates the field v3-essential which is only used during the transition from v2 to v3.