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Certbot 0.40.0 has just been released. The changelog for the release
is:<br>
<br>
## 0.40.0 - 2019-11-05<br>
<br>
### Changed<br>
<br>
* We deprecated support for Python 3.4 in Certbot and its ACME
library. Support<br>
for Python 3.4 will be removed in the next major release of
Certbot.<br>
certbot-auto users on RHEL 6 based systems will be asked to enable
Software<br>
Collections (SCL) repository so Python 3.6 can be installed.
certbot-auto can<br>
enable the SCL repo for you on CentOS 6 while users on other RHEL
6 based<br>
systems will be asked to do this manually.<br>
* `--server` may now be combined with `--dry-run`. Certbot will, as
before, use the<br>
staging server instead of the live server when `--dry-run` is
used.<br>
* `--dry-run` now requests fresh authorizations every time, fixing
the issue<br>
where it was prone to falsely reporting success.<br>
* Updated certbot-dns-google to depend on newer versions of<br>
google-api-python-client and oauth2client.<br>
* The OS detection logic again uses distro library for Linux OSes<br>
* certbot.plugins.common.TLSSNI01 has been deprecated and will be
removed in a<br>
future release.<br>
* CLI flags --tls-sni-01-port and --tls-sni-01-address have been
removed.<br>
* The values tls-sni and tls-sni-01 for the --preferred-challenges
flag are no<br>
longer accepted.<br>
* Removed the flags: `--agree-dev-preview`, `--dialog`, and
`--apache-init-script`<br>
* acme.standalone.BaseRequestHandlerWithLogging and<br>
acme.standalone.simple_tls_sni_01_server have been deprecated and
will be<br>
removed in a future release of the library.<br>
<br>
More details about these changes can be found on our GitHub repo.<br>
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