## c-ares version 1.32.3 - July 24 2024

This is a bugfix release.

Changes:
* Prevent complex recursion during query requeuing and connection cleanup for
  stability. [e8b32b8](https://github.com/c-ares/c-ares/commit/e8b32b8)
* Better propagate error codes on requeue situations.
  [a9bc0a2](https://github.com/c-ares/c-ares/commit/a9bc0a2)
* Try to prevent SIGPIPE from being generated and delivered to integrations.
  [de01baa](https://github.com/c-ares/c-ares/commit/de01baa)

Bugfixes:
* Missing manpage for `ares_dns_record_set_id()`
  [aa462b3](https://github.com/c-ares/c-ares/commit/aa462b3)
* Memory leak in `ares__hosts_entry_to_hostent()` due to allocation strategy.
  [PR #824](https://github.com/c-ares/c-ares/pull/824)
* UDP write failure detected via ICMP unreachable should trigger faster
  failover.  [PR #821](https://github.com/c-ares/c-ares/pull/821)
* Fix pycares test case regression due to wrong error code being returned.
  Regression from 1.31.0. [PR #820](https://github.com/c-ares/c-ares/pull/820)
* Fix possible Windows crash during `ares_destroy()` when using event threads.
  [5609bd4](https://github.com/c-ares/c-ares/commit/5609bd4)
* `ARES_OPT_MAXTIMEOUTMS` wasn't being honored in all cases.
  [a649c60](https://github.com/c-ares/c-ares/commit/a649c60)

## c-ares version 1.32.2 - July 15 2024

This is a bugfix release.

Bugfixes:

* Windows: rework EventThread AFD code for better stability.
  [PR #811](https://github.com/c-ares/c-ares/pull/811)
* Windows: If an IP address was detected to have changed, it could lead to a
  crash due to a bad pointer.  Regression introduced in 1.31.0.
  [59e3a1f4](https://github.com/c-ares/c-ares/commit/59e3a1f4)
* Windows: use `QueryPerformanceCounters()` instead of `GetTickCount64()` for
  better time accuracy (~15ms -> ~1us).
* Windows 32bit config change callback needs to be tagged as `stdcall` otherwise
  could result in a crash.
  [5c2bab35](https://github.com/c-ares/c-ares/commit/5c2bab35)
* Tests that need accurate timing should not depend on internal symbols as there
  are C++ equivalents in `std::chrono`.
  [PR #809](https://github.com/c-ares/c-ares/pull/809)
* Kqueue (MacOS, \*BSD): If the open socket count exceeded 8 (unlikely), it
  would try to allocate a new buffer that was too small.
  [5aad7981](https://github.com/c-ares/c-ares/commit/5aad7981)


## c-ares version 1.32.1 - July 7 2024

This is a bugfix release.

Bugfixes:
* Channel lock needs to be recursive to ensure calls into c-ares functions can
  be made from callbacks otherwise deadlocks will occur.  This regression was
  introduced in 1.32.0.


## c-ares version 1.32.0 - July 4 2024

This is a feature and bugfix release.

Features:

* Add support for DNS 0x20 to help prevent cache poisoning attacks, enabled
  by specifying `ARES_FLAG_DNS0x20`.  Disabled by default. [PR #800](https://github.com/c-ares/c-ares/pull/800)
* Rework query timeout logic to automatically adjust timeouts based on network
  conditions.  The timeout specified now is only used as a hint until there
  is enough history to calculate a more valid timeout. [PR #794](https://github.com/c-ares/c-ares/pull/794)

Changes:

* DNS RR TXT strings should not be automatically concatenated as there are use
  cases outside of RFC 7208.  In order to maintain ABI compliance, the ability
  to retrieve TXT strings concatenated is retained as well as a new API to
  retrieve the individual strings.  This restores behavior from c-ares 1.20.0.
  [PR #801](https://github.com/c-ares/c-ares/pull/801)
* Clean up header inclusion logic to make hacking on code easier. [PR #797](https://github.com/c-ares/c-ares/pull/797)
* GCC/Clang: Enable even more strict warnings to catch more coding flaws. [253bdee](https://github.com/c-ares/c-ares/commit/253bdee)
* MSVC: Enable `/W4` warning level. [PR #792](https://github.com/c-ares/c-ares/pull/792)

Bugfixes:

* Tests: Fix thread race condition in test cases for EventThread. [PR #803](https://github.com/c-ares/c-ares/pull/803)
* Windows: Fix building with UNICODE. [PR #802](https://github.com/c-ares/c-ares/pull/802)
* Thread Saftey: `ares_timeout()` was missing lock. [74a64e4](https://github.com/c-ares/c-ares/commit/74a64e4)
* Fix building with DJGPP (32bit protected mode DOS). [PR #789](https://github.com/c-ares/c-ares/pull/789)

Thanks go to these friendly people for their efforts and contributions for this
release:

* Brad House (@bradh352)
* Cheng (@zcbenz)