Certbot 1.18.0 Release

Certbot 1.18.0 has just been released. The changelog for the release is:

1.18.0 - 2021-08-03

Added

  • New functions that Certbot plugins can use to interact with the user have
    been added to certbot.display.util. We plan to deprecate using IDisplay
    with zope in favor of these new functions in the future.
  • The Plugin, Authenticator and Installer classes are added to
    certbot.interfaces module as alternatives to Certbot's current zope based
    plugin interfaces. The API of these interfaces is identical, but they are
    based on Python's abc module instead of zope. Certbot will continue to
    detect plugins that implement either interface, but we plan to drop support
    for zope based interfaces in a future version of Certbot.
  • The class certbot.configuration.NamespaceConfig is added to the Certbot's
    public API.

Changed

  • When self-validating HTTP-01 challenges using
    acme.challenges.HTTP01Response.simple_verify, we now assume that the response
    is composed of only ASCII characters. Previously we were relying on the
    default behavior of the requests library which tries to guess the encoding of
    the response which was error prone.
  • acme: the .client.Client and .client.BackwardsCompatibleClientV2 classes
    are now deprecated in favor of .client.ClientV2.
  • The certbot.tests.patch_get_utility* functions have been deprecated.
    Plugins should now patch certbot.display.util themselves in their tests or
    use certbot.tests.util.patch_display_util as a temporary workaround.
  • In order to simplify the transition to Certbot's new plugin interfaces, the
    classes Plugin and Installer in certbot.plugins.common module and
    certbot.plugins.dns_common.DNSAuthenticator now implement Certbot's new
    plugin interfaces. The Certbot plugins based on these classes are now
    automatically detected as implementing these interfaces.
  • We added a dependency on chardet to our acme library so that it will be
    used over charset_normalizer in newer versions of requests.

Fixed

  • The Apache authenticator no longer crashes with "Unable to insert label"
    when encountering a completely empty vhost. This issue affected Certbot 1.17.0.
  • Users of the Certbot snap on Debian 9 (Stretch) should no longer encounter an
    "access denied" error when installing DNS plugins.

More details about these changes can be found on our GitHub repo.

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