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## c-ares version 1.27.0 - Feb 23 2024
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This is a security, feature, and bugfix release.
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Security:
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* Moderate. CVE-2024-25629. Reading malformatted `/etc/resolv.conf`,
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`/etc/nsswitch.conf` or the `HOSTALIASES` file could result in a crash.
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[GHSA-mg26-v6qh-x48q](https://github.com/c-ares/c-ares/security/advisories/GHSA-mg26-v6qh-x48q)
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Features:
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* New function `ares_queue_active_queries()` to retrieve number of in-flight
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queries. [PR #712](https://github.com/c-ares/c-ares/pull/712)
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* New function `ares_queue_wait_empty()` to wait for the number of in-flight
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queries to reach zero. [PR #710](https://github.com/c-ares/c-ares/pull/710)
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* New `ARES_FLAG_NO_DEFLT_SVR` for `ares_init_options()` to return a failure if
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no DNS servers can be found rather than attempting to use `127.0.0.1`. This
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also introduces a new ares status code of `ARES_ENOSERVER`. [PR #713](https://github.com/c-ares/c-ares/pull/713)
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Changes:
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* EDNS Packet size should be 1232 as per DNS Flag Day. [PR #705](https://github.com/c-ares/c-ares/pull/705)
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Bugfixes:
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* Windows DNS suffix search list memory leak. [PR #711](https://github.com/c-ares/c-ares/pull/711)
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* Fix warning due to ignoring return code of `write()`. [PR #709](https://github.com/c-ares/c-ares/pull/709)
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* CMake: don't override target output locations if not top-level. [Issue #708](https://github.com/c-ares/c-ares/issues/708)
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* Fix building c-ares without thread support. [PR #700](https://github.com/c-ares/c-ares/pull/700)
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Thanks go to these friendly people for their efforts and contributions for this release:
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* Anthony Alayo (@anthonyalayo)
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* Brad House (@bradh352)
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* Cheng Zhao (@zcbenz)
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* Cristian Rodríguez (@crrodriguez)
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* Daniel Stenberg (@bagder)
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* Oliver Welsh (@oliverwelsh)
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* Vojtěch Vobr (@vojtechvobr)
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