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Changes for version 0.39

  • EAB (External Account Binding) support used by some CAs.
  • Asynchronous order finalization support.
  • Server-indicated retry intervals support.
  • Direct support of known ACME-compatible CAs via 'ca' parameter.
  • Minor fixes and documentation updates.


Let's Encrypt (and other ACME-based) API interfacing module and client.
A boilerplate for extending Crypt::LE and Crypt::LE client application ( with challenge/verification handlers.
A boilerplate for extending Crypt::LE client application ( with completion handlers.