Download HeidiSQL v12.18, released on 09 Jun 2026
Installation notes
- Compatibility notes
- Windows:
- Microsoft Visual C++ Redistributable libraries are required for some drivers. Download and install them from Microsoft if you get errors saying "vcruntimeXYZ.dll missing".
- A preview of v13 can be downloaded here (updated on 2026-04-21 17:00). Unzip it in your existing HeidiSQL directory, and you can use both version in parallel.
- Linux:
- For the .deb and QT releases, Ubuntu 24.04 needs libqt6pas (not in the repos yet):
curl -L -o /tmp/libqt6pas6_6.2.10-1_amd64.deb https://github.com/davidbannon/libqt6pas/releases/download/v6.2.10/libqt6pas6_6.2.10-1_amd64.debsudo apt install /tmp/libqt6pas6_6.2.10-1_amd64.deb
- Install package:
- DEB:
sudo apt install ~/Downloads/heidisql...deb - RPM:
sudo yum install Downloads/heidisql...rpm
- DEB:
- Settings are stored in a .json file. You may migrate your settings from a Windows registry:
- click File > "Export settings" (to .txt file) in the Windows version
- click File > "Import settings" in the Linux version
- For the .deb and QT releases, Ubuntu 24.04 needs libqt6pas (not in the repos yet):
Latest changes and nightly builds
Latest automatically compiled main executable and installers for HeidiSQL. Just download and overwrite your existing C:\Program Files\HeidiSQL\heidisql.exe. Be aware that these builds are not official releases and therefore probably have more bugs, possibly serious ones.
| Classic Windows version | v13 Preview, Current Linux and macOS versions |
|---|---|
fix: a checkbox does not seem to have Focused on macOS during a mouse-clickUse a special Tag for suspending the OnClick event during checkbox updates per code Refs #2506 dbc868a: 10 Jun 2026 17:05 v12.18.0.7306
fix: work around mysql bug for "hidden" routines in UPPERCASE databasesMySQL stores the database name of a routine in lowercase in mysql.proc This change should solve that on servers with lower_case_table_names=0 or 2, case sensitive file system, plus databases with uppercase characters Refs #2506 eedc259: 10 Jun 2026 16:37 v12.18.0.7305
Bump version for v12.18 release
be6e645: 09 Jun 2026 19:21 v12.18.0.730464bit build ≃ Installer ≃
feat: create checkbox in advanced session setting for new ForceUnicode settinghttps://www.heidisql.com/forum.php?t=45113 c934d72: 03 Jun 2026 17:15 v12.17.0.730364bit build ≃ Installer ≃
feat: create opt-out setting "ForceUnicode", for sessions which shall not force Unicode communicationhttps://www.heidisql.com/forum.php?t=45113 b858cd6: 02 Jun 2026 15:55 v12.17.0.730264bit build ≃ Installer ≃
feat: enable connection port visible in a column of the session tree
a6fa055: 01 Jun 2026 16:15 v12.17.0.730164bit build ≃ Installer ≃
fix: prefer SHOW KEYS over SHOW INDEXES, which are synonyms, while very old servers only accept the one with KEYShttps://www.heidisql.com/forum.php?t=45113 6a0e238: 01 Jun 2026 15:55 v12.17.0.7300
fix: prevent grid queries from doing "WHERE intcol::text = 1", due to "1" being incompatible to the text value on the leftRefs #2499 04a9492: 01 Jun 2026 10:36 v12.17.0.729964bit build ≃ Installer ≃
enhance: do not copy default type and value from previous column when adding columns to a tableRefs #2494 c94b860: 29 May 2026 15:54 v12.17.0.7298
fix: automatic reconnect when firing query on a disconnected SQL server connectionRefs #2334 2151b40: 29 May 2026 14:56 v12.17.0.729764bit build ≃ Installer ≃
fix: Vulnerability CVE-2025-70873, updating SQLite libs to v3.53.1Refs #2496 eb81654: 29 May 2026 12:10 v12.17.0.7296
feat: support authentication plugin selection in user manager, and fix complaint about invalid password length on user plugins which have no fixed password lengthRefs #1728, #1671 ec6f7ec: 29 May 2026 10:13 v12.17.0.729564bit build ≃ Installer ≃
fix: SUBSTRING() on array typed VARCHARs throw "function substr(...) does not exist"Refs #272 369354d: 27 May 2026 10:40 v12.17.0.7294
fix: MS SQL throws "Cannot drop database xyz, because it is currently in use" when user is about to drop the current databaseSets the next or previous sibling database, whichever is available Refs #1436 62caaf9: 27 May 2026 10:06 v12.17.0.7293
feat: grid export option for exporting the focused grid column onlyRefs #2490 09c6afa: 26 May 2026 17:06 v12.17.0.729264bit build ≃ Installer ≃
feat: bypass automatic foreign key lookup in data grid editing through new menu itemRefs #2454 118e9d9: 25 May 2026 21:29 v12.17.0.729164bit build ≃ Installer ≃
fix: space missing in CREATE TABLE code of PG table with SERIAL columnSee https://www.heidisql.com/forum.php?t=45094 50325ea: 25 May 2026 10:37 v12.17.0.7290
fix: formatting CSS rules ignored by Libre Office Writer when pasting, probably due to specified fragment pointing to the HTML only portionRefs #2487 3b9215a: 24 May 2026 12:19 v12.17.0.7289 |
fix: a checkbox does not seem to have Focused on macOS during a mouse-clickUse a special Tag for suspending the OnClick event during checkbox updates per code Refs #2506 c21f646: 10 Jun 2026 17:03
fix: work around mysql bug for "hidden" routines in UPPERCASE databasesMySQL stores the database name of a routine in lowercase in mysql.proc This change should solve that on servers with lower_case_table_names=0 or 2, case sensitive file system, plus databases with uppercase characters Refs #2506 f51834c: 10 Jun 2026 16:35
Bump version for v12.18 release
a60fff5: 09 Jun 2026 19:25
localize: update compiled .mo translation files
53f95d2: 08 Jun 2026 20:06
enhance: disable plugin selector as long as no user was selectedRefs #1728 54dd7d8: 04 Jun 2026 12:04
fix: copy table dialog crashes when none of dbtree and listtables has Focused=TrueRefs #2502 9216061: 04 Jun 2026 12:03
feat: create checkbox in advanced session setting for new ForceUnicode settinghttps://www.heidisql.com/forum.php?t=45113 75a0f7f: 03 Jun 2026 17:04
feat: create opt-out setting "ForceUnicode", for sessions which shall not force Unicode communicationhttps://www.heidisql.com/forum.php?t=45113 ed9a94f: 02 Jun 2026 16:46
feat: enable connection port visible in a column of the session tree
7cfdb97: 01 Jun 2026 16:18
fix: prefer SHOW KEYS over SHOW INDEXES, which are synonyms, while very old servers only accept the one with KEYShttps://www.heidisql.com/forum.php?t=45113 b97122c: 01 Jun 2026 15:56
fix: prevent grid queries from doing "WHERE intcol::text = 1", due to "1" being incompatible to the text value on the leftRefs #2499 bcea889: 01 Jun 2026 10:35
enhance: do not copy default type and value from previous column when adding columns to a tableRefs #2494 42a061d: 29 May 2026 15:52
fix: Vulnerability CVE-2025-70873, updating SQLite libs to v3.53.1Refs #2496 2930be8: 29 May 2026 12:12
fix: complaint about invalid password length on user plugins which have no fixed password lengthRefs #1671 510b141: 29 May 2026 09:49
feat: display auth plugin in a new column of the user listing treeRefs #1728 3e4f562: 28 May 2026 20:55
fix: SUBSTRING() on array typed VARCHARs throw "function substr(...) does not exist"Refs #272 5f2959d: 27 May 2026 10:41 |