Hi Amy, I’ve added Mojave to the list of 5.0.9 OSs, although please be aware that we are unable to offer specific support for using old versions of FSL. Kind Regards Matthew -------------------------------- Dr Matthew Webster FMRIB Centre John Radcliffe Hospital University of Oxford On 6 Feb 2020, at 01:32, Amy Hegarty <[log in to unmask]<mailto:[log in to unmask]>> wrote: Hello, I am having trouble reverting my FSL version to an old version of FSL. I currently have FSL 5.0.11 installed on mac OS 10.14 (Mojave). I would like to install FSL 5.0.9 Using the fslinstaller I can access a list of available versions of FSL but it only lists versions that are newer than the one I currently have installed. Is this just an issue with operating system compatibility or is there a different way I need to go about installing previous versions of FSL on my machine? ######################################################################## To unsubscribe from the FSL list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=FSL&A=1 ######################################################################## To unsubscribe from the FSL list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=FSL&A=1