Log Message:
Update to 5.40 (5.39 not fetchable). From the changelog:

* Security bugfixes
  - OpenSSL DLLs updated to version 1.0.2k.
    https://www.openssl.org/news/secadv/20170126.txt
* New features
  - DH ciphersuites are now disabled by default.
  - The daily server DH parameter regeneration is only performed if
    DH ciphersuites are enabled in the configuration file.
  - "checkHost" and "checkEmail" were modified to require either
    "verifyChain" or "verifyPeer" (thx to Małorzata \ 
Olszówka).
* Bugfixes
  - Fixed setting default ciphers.