# Connector/C 3.4.7 Changelog {% hint style="info" %}

The most recent release of MariaDB Connector/C is:

Connector/C 3.4.8 Download Now

{% endhint %} Download Release Notes Changelog About MariaDB Connector/C **Release date:** 21 Aug 2025 For the highlights of this release, see the [release notes](https://mariadb.com/docs/release-notes/connectors/c/3.4/3.4.7). The revision number links will take you to the revision's page on GitHub. On [GitHub](https://github.com/MariaDB/mariadb-connector-c/) you can view more\ details of the revision and view diffs of the code modified in that revision. * Revisions for both Connector/C 3.4.6 and 3.4.7 are included here * [Revision #b790c6c1](https://github.com/mariadb-corporation/mariadb-connector-c/commit/b790c6c1) *2025-07-22 23:06:18 +0200* * bump the VERSION * [Revision #ba3a172d](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ba3a172d) *2025-07-17 15:04:50 +0200* * Merge branch '3.3' into 3.4 * [Revision #77bdf5a5](https://github.com/mariadb-corporation/mariadb-connector-c/commit/77bdf5a5) *2025-07-17 10:36:37 +0200* * Fixed double close (introduced in PR275) * [Revision #e240810b](https://github.com/mariadb-corporation/mariadb-connector-c/commit/e240810b) *2025-04-11 07:20:38 +0200* * fix: fixed the possible nullPointerAritheticOutOfMemory by using SET\_CLIENT\_ERROR and return 1; because jumping to the error label is not viable in this case as pos is not initialized and it could raise more errors, this way we still handle the error while not clashing with the original error handling implementation * [Revision #1edef5b2](https://github.com/mariadb-corporation/mariadb-connector-c/commit/1edef5b2) *2025-04-11 08:33:31 +0200* * fix: added a failsafe return 1; in case the malloc at 559 fails so that we don't work with NULL * [Revision #f2117d42](https://github.com/mariadb-corporation/mariadb-connector-c/commit/f2117d42) *2025-04-11 08:50:10 +0200* * fix: fixed the posibility of undefined behaviour of the strchr previously at 252 if the strdup at 248 fails and thus returns NULL by setting a client error signalling that the client ran out of memory for easier communication of what exactly failed during the loading of the plugins and why. Returning from the function just after * [Revision #f72654e3](https://github.com/mariadb-corporation/mariadb-connector-c/commit/f72654e3) *2025-04-11 10:59:23 +0200* * fix: fixed a memory leak due to the socket not being closed after encountering an error by closing the socket before return * [Revision #9e4042c1](https://github.com/mariadb-corporation/mariadb-connector-c/commit/9e4042c1) *2025-04-11 11:45:53 +0200* * fix: fixed a possible leak when one of the files (fp1 or fp2) fails to open by adding a simple condition that checks whether one of them opens while the other fails and closing it and added the extra prentheses for the assignment inside the if statement for easier debugging and to avoid static analysis flagging it as a wrong statement inside the if clause * [Revision #c10a3479](https://github.com/mariadb-corporation/mariadb-connector-c/commit/c10a3479) *2025-04-11 12:10:26 +0200* * fix: added the closing of the test\_file before various fail statements to avoid memory leaks * [Revision #056f09bb](https://github.com/mariadb-corporation/mariadb-connector-c/commit/056f09bb) *2025-04-11 13:01:52 +0200* * fix: added frees for any allocated memory if the allocation of other memory fails and the FAIL\_UNLESS calls needed the stop the test if this happens * [Revision #7009f604](https://github.com/mariadb-corporation/mariadb-connector-c/commit/7009f604) *2025-04-11 13:15:09 +0200* * fix: added the closing of the file descriptor if the check\_mysql\_rc macro will return FAIL to avoid memory leaks * [Revision #9fb319a7](https://github.com/mariadb-corporation/mariadb-connector-c/commit/9fb319a7) *2025-04-11 13:46:11 +0200* * fix: added the necessary frees for the bind var before any of the check\_stmt\_rc() and check\_mysql\_rc() macros potentialy return from the fuction * [Revision #92a8b3b5](https://github.com/mariadb-corporation/mariadb-connector-c/commit/92a8b3b5) *2025-04-14 11:47:59 +0200* * fix: fixed the posible read of NULL when strdup fails thus resulting in rpl->filename being NULL by setting an error signalling that we ran out of memory to ease the debugging of the mariadb\_rpl\_options function and make it clearer if it ever fails because of this. Also added va\_end in this case to avoid the va\_list (ap) leaking when we return from this function and then returning 1 from the fucntion. * [Revision #5ea5d7ae](https://github.com/mariadb-corporation/mariadb-connector-c/commit/5ea5d7ae) *2025-04-14 12:44:36 +0200* * fix: fixed the order of the mariadb\_free\_rpl\_event() and rpl\_set\_error() calls to avoid using the rpl\_even var after freeing it * [Revision #06e041cf](https://github.com/mariadb-corporation/mariadb-connector-c/commit/06e041cf) *2025-05-26 12:15:01 +0200* * Added the FAIL\_UNLESS call for the bind variable that is being allocated to handle the possibility of the calloc failing and ensure we are not working with NULL in the rest of the tests * [Revision #0fc94025](https://github.com/mariadb-corporation/mariadb-connector-c/commit/0fc94025) *2025-05-26 12:27:39 +0200* * Added the call to FAIL\_UNLESS to handle the possibility of the allocation of buffer failing to ensure we don't work with NULL further in the test, also added a free to bind in this case to avoid a memory leak * [Revision #ba0da1df](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ba0da1df) *2025-07-16 16:56:05 +0200* * Merge pull request #289 from qobood/3.3 * [Revision #40be423f](https://github.com/mariadb-corporation/mariadb-connector-c/commit/40be423f) *2025-07-13 18:42:30 +0300* * Fix miscellaneous typos * [Revision #9d77fe83](https://github.com/mariadb-corporation/mariadb-connector-c/commit/9d77fe83) *2025-07-16 12:49:15 +0200* * bump the VERSION * [Revision #cacd251e](https://github.com/mariadb-corporation/mariadb-connector-c/commit/cacd251e) *2025-07-10 09:56:57 +0200* * Merge pull request #275 from PavolSloboda/static-analysis-result * [Revision #ba69f71f](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ba69f71f) *2025-05-26 12:27:39 +0200* * Added the call to FAIL\_UNLESS to handle the possibility of the allocation of buffer failing to ensure we don't work with NULL further in the test, also added a free to bind in this case to avoid a memory leak * [Revision #eefaf1d1](https://github.com/mariadb-corporation/mariadb-connector-c/commit/eefaf1d1) *2025-05-26 12:15:01 +0200* * Added the FAIL\_UNLESS call for the bind variable that is being allocated to handle the possibility of the calloc failing and ensure we are not working with NULL in the rest of the tests * [Revision #692a1313](https://github.com/mariadb-corporation/mariadb-connector-c/commit/692a1313) *2025-04-14 12:44:36 +0200* * fix: fixed the order of the mariadb\_free\_rpl\_event() and rpl\_set\_error() calls to avoid using the rpl\_even var after freeing it * [Revision #fd32a32c](https://github.com/mariadb-corporation/mariadb-connector-c/commit/fd32a32c) *2025-04-14 11:47:59 +0200* * fix: fixed the posible read of NULL when strdup fails thus resulting in rpl->filename being NULL by setting an error signalling that we ran out of memory to ease the debugging of the mariadb\_rpl\_options function and make it clearer if it ever fails because of this. Also added va\_end in this case to avoid the va\_list (ap) leaking when we return from this function and then returning 1 from the fucntion. * [Revision #d06a12e2](https://github.com/mariadb-corporation/mariadb-connector-c/commit/d06a12e2) *2025-04-11 13:46:11 +0200* * fix: added the necessary frees for the bind var before any of the check\_stmt\_rc() and check\_mysql\_rc() macros potentialy return from the fuction * [Revision #ff693cb8](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ff693cb8) *2025-04-11 13:15:09 +0200* * fix: added the closing of the file descriptor if the check\_mysql\_rc macro will return FAIL to avoid memory leaks * [Revision #5e1265b0](https://github.com/mariadb-corporation/mariadb-connector-c/commit/5e1265b0) *2025-04-11 13:01:52 +0200* * fix: added frees for any allocated memory if the allocation of other memory fails and the FAIL\_UNLESS calls needed the stop the test if this happens * [Revision #3308af14](https://github.com/mariadb-corporation/mariadb-connector-c/commit/3308af14) *2025-04-11 12:10:26 +0200* * fix: added the closing of the test\_file before various fail statements to avoid memory leaks * [Revision #abb6ab2f](https://github.com/mariadb-corporation/mariadb-connector-c/commit/abb6ab2f) *2025-04-11 11:45:53 +0200* * fix: fixed a possible leak when one of the files (fp1 or fp2) fails to open by adding a simple condition that checks whether one of them opens while the other fails and closing it and added the extra prentheses for the assignment inside the if statement for easier debugging and to avoid static analysis flagging it as a wrong statement inside the if clause * [Revision #fc6b991e](https://github.com/mariadb-corporation/mariadb-connector-c/commit/fc6b991e) *2025-04-11 10:59:23 +0200* * fix: fixed a memory leak due to the socket not being closed after encountering an error by closing the socket before return * [Revision #ba7730aa](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ba7730aa) *2025-04-11 08:50:10 +0200* * fix: fixed the posibility of undefined behaviour of the strchr previously at 252 if the strdup at 248 fails and thus returns NULL by setting a client error signalling that the client ran out of memory for easier communication of what exactly failed during the loading of the plugins and why. Returning from the function just after * [Revision #ff485e90](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ff485e90) *2025-04-11 08:33:31 +0200* * fix: added a failsafe return 1; in case the malloc at 559 fails so that we don't work with NULL * [Revision #ef626288](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ef626288) *2025-04-11 07:33:52 +0200* * fix: fixed the va\_end\_missing on line 4626 by adding a va\_end call * [Revision #8c9ab80a](https://github.com/mariadb-corporation/mariadb-connector-c/commit/8c9ab80a) *2025-04-11 07:20:38 +0200* * fix: fixed the possible nullPointerAritheticOutOfMemory by using SET\_CLIENT\_ERROR and return 1; because jumping to the error label is not viable in this case as pos is not initialized and it could raise more errors, this way we still handle the error while not clashing with the original error handling implementation * [Revision #dad72b63](https://github.com/mariadb-corporation/mariadb-connector-c/commit/dad72b63) *2025-07-10 09:45:46 +0200* * Merge branch '3.3' into 3.4 * [Revision #c58dce93](https://github.com/mariadb-corporation/mariadb-connector-c/commit/c58dce93) *2025-07-10 09:04:02 +0200* * Merge pull request #279 from grooverdan/static\_analsis\_fix * [Revision #f431c6ea](https://github.com/mariadb-corporation/mariadb-connector-c/commit/f431c6ea) *2025-05-27 16:38:23 +1000* * CONC-776: enable rpl\_set\_error * [Revision #bd233f8a](https://github.com/mariadb-corporation/mariadb-connector-c/commit/bd233f8a) *2025-05-27 16:37:39 +1000* * break; after return never reached * [Revision #d5d330f8](https://github.com/mariadb-corporation/mariadb-connector-c/commit/d5d330f8) *2025-05-27 16:18:50 +1000* * mariadb\_reconnect: reconnection may fail to allocate extensions * [Revision #b22b85bc](https://github.com/mariadb-corporation/mariadb-connector-c/commit/b22b85bc) *2025-05-27 16:05:36 +1000* * mysql\_init: early alloc failure not freed * [Revision #f3d86275](https://github.com/mariadb-corporation/mariadb-connector-c/commit/f3d86275) *2025-07-10 05:54:49 +0200* * Merge pull request #281 from grooverdan/caching\_sha2\_pw\_err * [Revision #6fde019b](https://github.com/mariadb-corporation/mariadb-connector-c/commit/6fde019b) *2025-05-29 15:42:34 +1000* * caching\_sha2\_pw: free filebuffer and cleanup on Public key import failure * [Revision #96b73e20](https://github.com/mariadb-corporation/mariadb-connector-c/commit/96b73e20) *2025-07-09 11:52:15 +0200* * Merge pull request #282 from grooverdan/win\_get\_password * [Revision #d226315e](https://github.com/mariadb-corporation/mariadb-connector-c/commit/d226315e) *2025-05-29 16:39:50 +1000* * get\_tty\_password(Windows) - CreateFile error * [Revision #67972e13](https://github.com/mariadb-corporation/mariadb-connector-c/commit/67972e13) *2025-06-25 09:52:18 +0200* * ci-fix: Test 10.x mtr, not 11.4 and above * [Revision #a7a3db71](https://github.com/mariadb-corporation/mariadb-connector-c/commit/a7a3db71) *2025-06-25 06:27:46 +0200* * ci fixes: * Don't set C/C unittest environment variables globally * Removed 10.6 and 10.11 mtr tests * [Revision #f4109774](https://github.com/mariadb-corporation/mariadb-connector-c/commit/f4109774) *2025-06-24 10:53:01 +0200* * Add diagnostic output for ci test * [Revision #92b09b67](https://github.com/mariadb-corporation/mariadb-connector-c/commit/92b09b67) *2025-06-20 15:14:30 +0200* * \[TODO-5373] add macos to non mandatory for now * [Revision #5b32575f](https://github.com/mariadb-corporation/mariadb-connector-c/commit/5b32575f) *2025-06-18 16:09:13 +0200* * \[TODO-5373] remove node.js installation * [Revision #0a3f2173](https://github.com/mariadb-corporation/mariadb-connector-c/commit/0a3f2173) *2025-06-16 19:43:16 +0200* * \[TODO-5373] add github action * [Revision #0eb34a26](https://github.com/mariadb-corporation/mariadb-connector-c/commit/0eb34a26) *2025-07-09 11:48:32 +0200* * Merge pull request #267 from ericherman/eherman-io-size-20241231 * [Revision #f5319d9a](https://github.com/mariadb-corporation/mariadb-connector-c/commit/f5319d9a) *2024-12-31 18:12:21 +0100* * Create #define for network buffer alignment * [Revision #d3facb7c](https://github.com/mariadb-corporation/mariadb-connector-c/commit/d3facb7c) *2025-06-25 06:27:46 +0200* * ci fixes: * Don't set C/C unittest environment variables globally * Removed 10.6 and 10.11 mtr tests * [Revision #189c2318](https://github.com/mariadb-corporation/mariadb-connector-c/commit/189c2318) *2025-06-24 10:53:01 +0200* * Add diagnostic output for ci test * [Revision #29c43ff9](https://github.com/mariadb-corporation/mariadb-connector-c/commit/29c43ff9) *2025-06-24 06:18:30 +0200* * Merge pull request #285 from rusher/3.4 * [Revision #3139702b](https://github.com/mariadb-corporation/mariadb-connector-c/commit/3139702b) *2025-06-20 15:14:30 +0200* * \[TODO-5373] add macos to non mandatory for now * [Revision #6774fb9d](https://github.com/mariadb-corporation/mariadb-connector-c/commit/6774fb9d) *2025-06-18 16:09:13 +0200* * \[TODO-5373] remove node.js installation * [Revision #1bf35711](https://github.com/mariadb-corporation/mariadb-connector-c/commit/1bf35711) *2025-06-16 19:43:16 +0200* * \[TODO-5373] add github action * [Revision #b3adb241](https://github.com/mariadb-corporation/mariadb-connector-c/commit/b3adb241) *2025-06-07 16:50:38 +0200* * Merge branch '3.3' into 3.4 * [Revision #aebe28b8](https://github.com/mariadb-corporation/mariadb-connector-c/commit/aebe28b8) *2025-06-07 15:32:44 +0200* * CONC-778: TLSv1.3 support for Windows Server 2022 * [Revision #0ac57a4e](https://github.com/mariadb-corporation/mariadb-connector-c/commit/0ac57a4e) *2025-05-24 17:15:30 +0200* * Merge branch '3.3' into 3.4 * [Revision #163fc458](https://github.com/mariadb-corporation/mariadb-connector-c/commit/163fc458) *2025-05-24 17:13:50 +0200* * Merge pull request #277 from grooverdan/conc-775 * [Revision #d40935e5](https://github.com/mariadb-corporation/mariadb-connector-c/commit/d40935e5) *2025-05-23 18:23:10 +1000* * CONC-775 - UNINIT\_VAR macro - disable for clang * [Revision #9cb88c0d](https://github.com/mariadb-corporation/mariadb-connector-c/commit/9cb88c0d) *2025-05-14 19:47:37 +0200* * Merge branch '3.3' into 3.4 * [Revision #aa7cee63](https://github.com/mariadb-corporation/mariadb-connector-c/commit/aa7cee63) *2025-05-14 19:40:55 +0200* * Merge pull request #276 from stewartsmith/3.3-aarch64-ma-context-bti-fix * [Revision #e2e5113a](https://github.com/mariadb-corporation/mariadb-connector-c/commit/e2e5113a) *2025-05-13 13:52:41 -0700* * Fix my\_context\_\[spawn|continue|yield] for aarch64 BTI * [Revision #6d747250](https://github.com/mariadb-corporation/mariadb-connector-c/commit/6d747250) *2025-05-02 07:58:48 +0200* * Merge branch '3.3' into 3.4 * [Revision #c07e50d9](https://github.com/mariadb-corporation/mariadb-connector-c/commit/c07e50d9) *2025-05-02 07:52:01 +0200* * Merge branch '3.1' into 3.3 * [Revision #e44e3f6b](https://github.com/mariadb-corporation/mariadb-connector-c/commit/e44e3f6b) *2025-05-02 07:44:47 +0200* * CONC-771: Fix pipelining mode (mariadb\_stmt\_execute\_direct) * [Revision #461a2c79](https://github.com/mariadb-corporation/mariadb-connector-c/commit/461a2c79) *2025-04-24 06:30:23 +0200* * Merge branch '3.3' into 3.4 * [Revision #02ceb060](https://github.com/mariadb-corporation/mariadb-connector-c/commit/02ceb060) *2025-04-23 21:30:03 +0200* * CONC-756: Update zlib to 1.3.1 * [Revision #b10b76e5](https://github.com/mariadb-corporation/mariadb-connector-c/commit/b10b76e5) *2025-02-12 15:17:39 +0100* * Fix compilation with GCC 15 * [Revision #126a7530](https://github.com/mariadb-corporation/mariadb-connector-c/commit/126a7530) *2025-04-17 19:43:06 +0200* * Remove workaround after MDEV-13492 was fixed. * [Revision #352973da](https://github.com/mariadb-corporation/mariadb-connector-c/commit/352973da) *2025-04-23 21:13:11 +0200* * Merge pull request #272 from FaramosCZ/gcc-15 * [Revision #e8448137](https://github.com/mariadb-corporation/mariadb-connector-c/commit/e8448137) *2025-02-12 15:17:39 +0100* * Fix compilation with GCC 15 * [Revision #b5a2c9f3](https://github.com/mariadb-corporation/mariadb-connector-c/commit/b5a2c9f3) *2025-04-20 10:49:16 +0200* * Merge branch '3.3' into 3.4 * [Revision #55abb320](https://github.com/mariadb-corporation/mariadb-connector-c/commit/55abb320) *2025-04-20 10:16:30 +0200* * Merge branch '3.1' into 3.3-merge * [Revision #867f0d18](https://github.com/mariadb-corporation/mariadb-connector-c/commit/867f0d18) *2025-04-17 09:30:13 +0200* * Merge pull request #274 from grooverdan/makecontext * [Revision #52c1eb4d](https://github.com/mariadb-corporation/mariadb-connector-c/commit/52c1eb4d) *2025-04-03 12:11:52 +1100* * CONC-766 Disable clang -Wcast-function-type-strict for makecontext * [Revision #ae748744](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ae748744) *2025-04-09 18:14:57 -0400* * bump the VERSION * [Revision #28a1e4b5](https://github.com/mariadb-corporation/mariadb-connector-c/commit/28a1e4b5) *2025-03-31 11:02:35 +0200* * Fix for CONC-762: Always set is\_null and length in bind structure to avoid msan errors * [Revision #9247ab71](https://github.com/mariadb-corporation/mariadb-connector-c/commit/9247ab71) *2025-04-17 02:14:19 +0200* * Merge pull request #273 from knielsen/knielsen\_conc764 * [Revision #5b7df227](https://github.com/mariadb-corporation/mariadb-connector-c/commit/5b7df227) *2025-04-01 20:32:49 +0200* * CONC-764: Build error in ma\_context.c on android * [Revision #8e371bbe](https://github.com/mariadb-corporation/mariadb-connector-c/commit/8e371bbe) *2025-04-01 19:25:48 +0200* * CONC-764: Build error in ma\_context.c on android * [Revision #7274f8f6](https://github.com/mariadb-corporation/mariadb-connector-c/commit/7274f8f6) *2025-04-09 18:15:34 -0400* * bump the VERSION * [Revision #88045932](https://github.com/mariadb-corporation/mariadb-connector-c/commit/88045932) *2025-04-17 15:29:07 +0200* * CONC-767 Improve SSL verification performance on Windows * [Revision #fa56a25f](https://github.com/mariadb-corporation/mariadb-connector-c/commit/fa56a25f) *2025-04-17 19:43:06 +0200* * Remove workaround after MDEV-13492 was fixed. * [Revision #b0e31d6f](https://github.com/mariadb-corporation/mariadb-connector-c/commit/b0e31d6f) *2025-04-09 18:16:46 -0400* * bump the VERSION * [Revision #ba712ddf](https://github.com/mariadb-corporation/mariadb-connector-c/commit/ba712ddf) *2025-03-31 13:17:50 +0200* * CONC-763: ma\_charset.c misses MySQL collation ID 309 - utf8mb4\_0900\_bin * [Revision #5d34e482](https://github.com/mariadb-corporation/mariadb-connector-c/commit/5d34e482) *2025-03-28 11:40:08 +0200* * Merge 3.3 into 3.4 * [Revision #b38e8720](https://github.com/mariadb-corporation/mariadb-connector-c/commit/b38e8720) *2025-03-05 13:39:22 +0100* * Text fixes: * Fixed windows test (missing parameter) * Check if we need to connect via SSL port (Travis) *This page is licensed: CC BY-SA / Gnu FDL* {% @marketo/form formid="4316" formId="4316" %}