Release 0.7.1

What's Changed

Fixed

• Qx.Hardware.connect/2 now supports discovery before a backend is
  chosen. It previously hard-validated backend ∈ backends_list and
  returned a Qx.Hardware.ConfigError on a blank backend, which broke
  the connect-then-pick flow (e.g. a UI populating a backend dropdown
  from the connect result). Blank (nil/""/whitespace) backend now
  skips the membership check and returns the populated config; a
  set backend is still validated (catches typos early). run/3,
  run!/3, and submit_qasm/3 now reject a blank backend up front
  with a clear ConfigError instead of failing deep in an IBM call.

Security

• Qx.Hardware.Config no longer leaks credentials via inspect/1
  (qx-o9h). Added @derive {Inspect, except: [...]} so :portal_token,
  :ibm_api_key, :ibm_crn, and :access_token are redacted in all
  inspect output (Logger, BEAM crash reports, error tuples embedding
  the struct). Non-secret fields remain visible.

Installation

Add to your mix.exs:

def deps do
  [
    {:qx_sim, "~> 0.7.1"}
  ]
end

Documentation

• Hex.pm: https://hex.pm/packages/qx_sim/0.7.1
• Docs: https://hexdocs.pm/qx_sim/0.7.1