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c-ares version 1.16.1 

Security: 
 o Prevent possible use-after-free and double-free in ares_getaddrinfo() if 
   ares_destroy() is called prior to ares_getaddrinfo() completing.  Reported 
   by Jann Horn at Google Project Zero. 
 
Changes:
 o Allow TXT records on CHAOS qclass.  Used for retriving things like 
   version.bind, version.server, authoris.bind, hostname.bind, and id.server. 
   [3] 

Bug fixes:
 o Fix Windows Unicode incompatibilities with ares_getaddrinfo() [1] 
 o Silence false cast-align compiler warnings due to valid casts of 
   struct sockaddr to struct sockaddr_in and struct sockaddr_in6. 
 o MacOS should use libresolv for retrieving DNS servers, like iOS 
 o CMake build system should populate the INCLUDE_DIRECTORIES property of  
   installed targets [2] 
 o Correct macros in use for the ares_getaddrinfo.3 man page 

Thanks go to these friendly people for their efforts and contributions:
 Brad House (@bradh352), Daniel Stenberg (@bagder), Dmitry Igrishin (@dmitigr), 
 Jann Horn, Shelly Vohr, Teemu R (@rytilahti) 
 (6 contributors) 

References to bug reports and discussions on issues:
 [1] = https://github.com/c-ares/c-ares/pull/328 
 [2] = https://github.com/c-ares/c-ares/pull/323 
 [3] = https://github.com/c-ares/c-ares/pull/321