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Releases: c-ares/c-ares

1.34.5

08 Apr 12:23
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1.34.5 Latest
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c-ares version 1.34.5 - April 8 2025

This is a security release.

Security:

  • CVE-2025-31498. A use-after-free bug has been uncovered in read_answers() that was introduced in v1.32.3. Please see GHSA-6hxc-62jh-p29v

Changes:

  • Restore Windows XP support. PR #958

Bugfixes:

  • A missing mutex initialization would make busy polling for configuration changes (platforms other than Windows, Linux, MacOS) eat too much CPU PR #974
  • Pkgconfig may be generated wrong for static builds in relation to -pthread PR #965
  • Localhost resolution can fail if only one address family is in /etc/hosts PR #947

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

Contributors

eriklax, FlorianPfisterer, and 2 other contributors
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1.34.4

14 Dec 15:18
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v1.34.4
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1.34.4

c-ares version 1.34.4 - December 14 2024

This is a bugfix release.

Changes:

Bugfixes:

  • Empty TXT records were not being preserved. PR #922
  • docs: update deprecation notices for ares_create_query() and ares_mkquery(). PR #910
  • license: some files weren't properly updated. PR #920
  • Fix bind local device regression from 1.34.0. PR #929, PR #931, PR #935
  • CMake: set policy version to prevent deprecation warnings. PR #932
  • CMake: shared and static library names should be the same on unix platforms like autotools uses. PR #933
  • Update to latest autoconf archive macros for enhanced system compatibility. PR #936

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

Contributors

bagder, gjasny, and 4 other contributors
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1.34.3

09 Nov 17:48
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v1.34.3
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1.34.3

c-ares version 1.34.3 - November 9 2024

This is a bugfix release.

Changes:

  • Build the release package in an automated way so we can provide provenance as per SLSA3. PR #906

Bugfixes:

  • Some upstream servers are non-compliant with EDNS options, resend queries without EDNS. Issue #911
  • Android: <=7 needs sys/system_properties.h a70637c
  • Android: CMake needs -D_GNU_SOURCE and others. PR #915
  • TSAN warns on missing lock, but lock isn't actually necessary. PR #915
  • ares_getaddrinfo() for AF_UNSPEC should retry IPv4 if only IPv6 is received. 765d558
  • ares_send() shouldn't return ARES_EBADRESP, its ARES_EBADQUERY. 91519e7
  • Fix typos in man pages. PR #905

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

Contributors

bradh352 and jimmy-park
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1.34.2

15 Oct 10:11
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1.34.2

c-ares version 1.34.2 - October 15 2024

This release contains a fix for downstream packages detecting the c-ares
version based on the contents of the header file rather than the
distributed pkgconf or cmake files.

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1.34.1

10 Oct 00:59
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v1.34.1
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1.34.1

c-ares version 1.34.1 - October 9 2024

This release fixes a packaging issue.

c-ares version 1.34.0 - October 9 2024

This is a feature and bugfix release.

Features:

  • adig: read arguments from adigrc. PR #856
  • Add new pending write callback optimization via ares_set_pending_write_cb. PR #857
  • New function ares_process_fds(). PR #875
  • Failed servers should be probed rather than redirecting queries which could
    cause unexpected latency. PR #877
  • adig: rework command line arguments to mimic dig from bind. PR #890
  • Add new method for overriding network functions
    ares_set_socket_function_ex() to properly support all new functionality. PR #894
  • Fix regression with custom socket callbacks due to DNS cookie support. PR #895
  • ares_socket: set IP_BIND_ADDRESS_NO_PORT on ares_set_local_ip* tcp sockets PR #887
  • URI parser/writer for ares_set_servers_csv()/ares_get_servers_csv(). PR #882

Changes:

  • Connection handling modularization. PR #857, PR #876
  • Expose library/utility functions to tools. PR #860
  • Remove ares__ prefix, just use ares_ for internal functions. PR #872

Bugfixes:

  • fix: potential WIN32_LEAN_AND_MEAN redefinition. PR #869
  • Fix googletest v1.15 compatibility. PR #874
  • Fix pkgconfig thread dependencies. PR #884

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

Contributors

crrodriguez, codebytere, and 4 other contributors
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1.34.0

10 Oct 00:12
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v1.34.0
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1.34.0

c-ares version 1.34.0 - October 9 2024

This is a feature and bugfix release.

Features:

  • adig: read arguments from adigrc. PR #856
  • Add new pending write callback optimization via ares_set_pending_write_cb. PR #857
  • New function ares_process_fds(). PR #875
  • Failed servers should be probed rather than redirecting queries which could
    cause unexpected latency. PR #877
  • adig: rework command line arguments to mimic dig from bind. PR #890
  • Add new method for overriding network functions
    ares_set_socket_function_ex() to properly support all new functionality. PR #894
  • Fix regression with custom socket callbacks due to DNS cookie support. PR #895
  • ares_socket: set IP_BIND_ADDRESS_NO_PORT on ares_set_local_ip* tcp sockets PR #887
  • URI parser/writer for ares_set_servers_csv()/ares_get_servers_csv(). PR #882

Changes:

  • Connection handling modularization. PR #857, PR #876
  • Expose library/utility functions to tools. PR #860
  • Remove ares__ prefix, just use ares_ for internal functions. PR #872

Bugfixes:

  • fix: potential WIN32_LEAN_AND_MEAN redefinition. PR #869
  • Fix googletest v1.15 compatibility. PR #874
  • Fix pkgconfig thread dependencies. PR #884

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

Contributors

crrodriguez, codebytere, and 4 other contributors
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1.33.1

23 Aug 13:40
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1.33.1

c-ares version 1.33.1 - August 23 2024

This is a bugfix release.

Bugfixes:

  • Work around systemd-resolved quirk that returns unexpected codes for single
    label names. Also adds test cases to validate the work around works and
    will continue to work in future releases. PR #863, See Also systemd/systemd#34101
  • Fix sysconfig ndots default value, also adds containerized test case to
    prevent future regressions. PR #862
  • Fix blank DNS name returning error code rather than valid record for
    commands like: adig -t SOA .. Also adds test case to prevent future
    regressions. 9e574af
  • Fix calculation of query times > 1s. 2b2eae7
  • Fix building on old Linux releases that don't have TCP_FASTOPEN_CONNECT. b7a89b9
  • Fix minor Android build warnings. PR #848

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

Contributors

eriklax, mikaellindemann, and 3 other contributors
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1.33.0

02 Aug 12:50
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v1.33.0
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1.33.0

c-ares version 1.33.0 - August 2 2024

This is a feature and bugfix release.

Features:

  • Add DNS cookie support (RFC7873 + RFC9018) to help prevent off-path cache poisoning attacks. PR #833
  • Implement TCP FastOpen (TFO) RFC7413, which will make TCP reconnects 0-RTT on supported systems. PR #840

Changes:

  • Reorganize source tree. PR #822
  • Refactoring of connection handling to prevent code duplication. PR #839
  • New dynamic array data structure to prevent simple logic flaws in array handling in various code paths. PR #841

Bugfixes:

  • ares_destroy() race condition during shutdown due to missing lock. PR #831
  • Android: Preserve thread name after attaching it to JVM. PR #838
  • Windows UWP (Store) support fix. PR #845

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

Contributors

Hsilgos and bradh352
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1.32.3

24 Jul 09:42
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v1.32.3
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1.32.3

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
  • Better propagate error codes on requeue situations. a9bc0a2
  • Try to prevent SIGPIPE from being generated and delivered to integrations. de01baa

Bugfixes:

  • Missing manpage for ares_dns_record_set_id(). aa462b3
  • Memory leak in ares__hosts_entry_to_hostent() due to allocation strategy. PR #824
  • UDP write failure detected via ICMP unreachable should trigger faster failover. PR #821
  • Fix pycares test case regression due to wrong error code being returned. Regression from 1.31.0. PR #820
  • Fix possible Windows crash during ares_destroy() when using event threads. 5609bd4
  • ARES_OPT_MAXTIMEOUTMS wasn't being honored in all cases. a649c60
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1.32.2

15 Jul 13:03
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v1.32.2
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1.32.2

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
  • 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
  • Windows: use QueryPerformanceCounters() instead of GetTickCount64() for better time accuracy (~15ms -> ~1us). 8a50fc6c
  • Windows 32bit config change callback needs to be tagged as stdcall otherwise could result in a crash. 5c2bab35
  • Tests that need accurate timing should not depend on internal symbols as there are C++ equivalents in std::chrono. PR #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
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