I am using a Mac OS-10.10.5 ("Yosemite") and have been running QGIS 2.10 "Pisa". Several people have reported issues about processing rasters (http://hub.qgis.org/issues/13162), so I am chomping at the bit to install QGIS 2.12 (supposed to be coming out soon!).

Before I install the new version (QGIS 2.12), do I need to uninstall the old 2.10 version?


No, rename the 2.10 version as QGIS_2.10.app and install the new version (as QGIS.app). If you want a new version, you can also use the Nightly Mac Build of QGIS from 'master' Branch (one version per day, currently QGIS 2.13 version)

  • With the Kyngchaos QGIS 2.8 LTR there is a Readme that includes the following: "If you rename an installed QGIS before installing a newer major version (ie 2.8->2.10), be aware that they use the same preferences and plugins, and there may plugin or preference incompatibilities. Especially with builtin plugins that may store the path to a support executable in the QGIS app package, even if it’s the default and you don’t explicitly set it - you could end up with one QGIS app executing an incompatible plugin program in another QGIS app." – Tele-Pet Oct 24 '15 at 23:35
  • That is the theory if you are not familiar with QGIS. I have three versions that are running (2.8, 2.10, dev) without problems. The only thing is that some plugins (one or two) don't work in all versions – gene Oct 25 '15 at 7:57
  • I appreciate the help. I still don't know what the best thing is to do. It sounds like the Kyngchaos warning applies, and I should not rename the older version. I don't see any point in keeping the 2.10 version once the 2.12 is installed, so -- I guess I'll (try to) delete the 2.10 version. Is that a bad idea? – Catlike Oct 26 '15 at 0:53
  • Do as you wish but it is not a real problem (2.10 + 2.12 + dev version). The 2.12 version of KyngChaos is not yet available. – gene Oct 27 '15 at 17:11

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.