# GMT 6.6.0 release **URL:** \ **Category:** Announcements\ **Created:** [July 27, 2025, 10:48am UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094 "2025-07-27T10:48:55Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Joaquim](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/joaquim/32/16_2.png) [@Joaquim](https://forum.generic-mapping-tools.org/u/Joaquim)\ **Post date:** [July 27, 2025, 10:48am UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/1 "2025-07-27T10:48:55Z")
The GMT team is pleased to announce the 6.6.0 release via GitHub [Releases](https://github.com/GenericMappingTools/gmt/releases/tag/6.6.0). It is the first release since Paul Wessel so sadly left us and contains mostly the bug fixes that have accumulated during this \> 1.5 year since release 6.5. But it contains also some enhancements, specially the new Spilhaus projection. We also no longer provide a Mac .dmg version. Mac users must use Homebrew, MacPorts or build GMT by their own. If you find any bugs please report issues on GitHub or if you are not sure you can post general questions on our [Q & A Forum](https://flint.soest.hawaii.edu). ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [July 28, 2025, 7:15am UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/2 "2025-07-28T07:15:50Z")
Hi, thanks for the release, though, why the rush (not that I complain, I really needed this new .exe)? The download page from the official website needs a new entry šŸ˜‰ Best, ---
**Author:** ![Joaquim](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/joaquim/32/16_2.png) [@Joaquim](https://forum.generic-mapping-tools.org/u/Joaquim)\ **Post date:** [July 28, 2025, 11:09am UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/3 "2025-07-28T11:09:37Z")
Rush? Thanks, Download page updated. ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [July 28, 2025, 12:29pm UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/4 "2025-07-28T12:29:01Z")
Iā€™m referring to some PR pending on github. [for example](https://github.com/GenericMappingTools/gmt/pull/7358) ---
**Author:** ![Joaquim](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/joaquim/32/16_2.png) [@Joaquim](https://forum.generic-mapping-tools.org/u/Joaquim)\ **Post date:** [July 28, 2025, 12:50pm UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/5 "2025-07-28T12:50:54Z")
There are lots of open issues. We cannot be dependent on their resolution to decide when to release. And in fact this time there was a kind o urgent pressing > > > \*\*Description of the problem\*\* > > Fedora is updating to cmake 4.0 which drops suppā€¦ort for cmake \< 3.5 > > \*\*Full script that generated the error\*\* > > > \`\`\` > /usr/bin/cmake -S . -B redhat-linux-build -DCMAKE\_C\_FLAGS\_RELEASE:STRING=-DNDEBUG -DCMAKE\_CXX\_FLAGS\_RELEASE:STRING=-DNDEBUG -DCMAKE\_Fortran\_FLAGS\_RELEASE:STRING=-DNDEBUG -DCMAKE\_VERBOSE\_MAKEFILE:BOOL=ON -DCMAKE\_INSTALL\_DO\_STRIP:BOOL=OFF -DCMAKE\_INSTALL\_PREFIX:PATH=/usr -DCMAKE\_INSTALL\_FULL\_SBINDIR:PATH=/usr/bin -DCMAKE\_INSTALL\_SBINDIR:PATH=bin -DINCLUDE\_INSTALL\_DIR:PATH=/usr/include -DLIB\_INSTALL\_DIR:PATH=/usr/lib64 -DSYSCONF\_INSTALL\_DIR:PATH=/etc -DSHARE\_INSTALL\_PREFIX:PATH=/usr/share -DLIB\_SUFFIX=64 -DBUILD\_SHARED\_LIBS:BOOL=ON -DCMAKE\_INSTALL\_LIBDIR=lib64 -DGSHHG\_ROOT=/usr/share/gshhg-gmt-nc4 -DGMT\_INSTALL\_MODULE\_LINKS=off -DGMT\_INSTALL\_TRADITIONAL\_FOLDERNAMES=off -DLICENSE\_RESTRICTED=LGPL -DGMT\_ENABLE\_OPENMP=BOOL:ON -DGMT\_USE\_THREADS=BOOL:ON -DGMT\_EXCLUDE\_BLAS=BOOL:ON -DGMT\_EXCLUDE\_LAPACK=BOOL:ON -DBLAS\_LIBRARY=-lflexiblas -DLAPACK\_LIBRARY=-lflexiblas -DBASH\_COMPLETION\_DIR=/usr/share/bash-completion/completions > \`\`\` > > \*\*Full error message\*\* > > > > \`\`\` > Compatibility with CMake \< 3.5 has been removed from CMake. > > Update the VERSION argument \ value. Or, use the \...\ syntax > to tell CMake that the project requires at least \ but has been updated > to work with policies introduced by \ or earlier. > > Or, add -DCMAKE\_POLICY\_VERSION\_MINIMUM=3.5 to try configuring anyway. > > > \-- Configuring incomplete, errors occurred! > \`\`\` > > > \*\*System information\*\* > > \* Operating system: Fedora rawhide > \* GMT version (\`gmt --version\`): 6.5.0 ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [July 29, 2025, 7:58am UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/6 "2025-07-29T07:58:12Z")
Oooh, thatā€™s the ā€œOrionā€™s messageā€ you wrote about. Thanks šŸ™‚ ---
**Author:** ![Dengda98](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/dengda98/32/2894_2.png) [@Dengda98](https://forum.generic-mapping-tools.org/u/Dengda98)\ **Post date:** [August 2, 2025, 3:01am UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/7 "2025-08-02T03:01:17Z")
@Joaquim FTP mirrors have not been updated, e.g. hawaii (ftp://ftp.soest.hawaii.edu/gmt) ---
**Author:** ![Joaquim](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/joaquim/32/16_2.png) [@Joaquim](https://forum.generic-mapping-tools.org/u/Joaquim)\ **Post date:** [August 2, 2025, 5:23pm UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/8 "2025-08-02T17:23:31Z")
We have no way to updated that ftp site anymore ---
**Author:** ![timhume](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/timhume/32/296_2.png) [@timhume](https://forum.generic-mapping-tools.org/u/timhume)\ **Post date:** [August 3, 2025, 9:05pm UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/9 "2025-08-03T21:05:48Z")
Are there any small things someone like me could help with on GMT? Even if itā€™s not code (my coding tends to be hacky - as Iā€™m sure you can attest to šŸ™‚ ), but things like documentation. ---
**Author:** ![PlanetGus](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/planetgus/32/303_2.png) [@PlanetGus](https://forum.generic-mapping-tools.org/u/PlanetGus)\ **Post date:** [August 5, 2025, 7:26am UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/10 "2025-08-05T07:26:49Z")
Pick your poison ^^ > **[Issues Ā· GenericMappingTools/gmt](https://github.com/GenericMappingTools/gmt/issues)** > > The Generic Mapping Tools. Contribute to GenericMappingTools/gmt development by creating an account on GitHub. (you can filter the issues with ā€œlabelsā€) Thereā€™s also some discussions of interest in ā€œdiscussionā€ : > **[Lowering barriers for new contributors Ā· GenericMappingTools/gmt Ā· Discussion...](https://github.com/GenericMappingTools/gmt/discussions/6543)** > > Potential contributors to GMT who might help with coding, documentation, testing or other aspects of GMT maintenance and development face initial hurdles to get up and running. These are hardware a... ---
**Author:** ![mkononets](https://yyz1.discourse-cdn.com/flex047/user_avatar/forum.generic-mapping-tools.org/mkononets/32/4029_2.png) [@mkononets](https://forum.generic-mapping-tools.org/u/mkononets)\ **Post date:** [August 27, 2025, 5:06pm UTC](https://forum.generic-mapping-tools.org/t/gmt-6-6-0-release/6094/11 "2025-08-27T17:06:31Z")
First release of GMT without an official changelog. Too bad Iā€™m not good for fixing it or any of the above. Only for answering some of the simplest forum questions or being grumpy when some things arenā€™t working the way I want it.