Jira 4.4 is the first official version that supported IE9 as noted in Atlassian's documentation. So, Jira 4.4 and above until support is dropped.
https://confluence.atlassian.com/display/JIRA044/Supported+Platforms
Please note the caveat on the 4.4 release.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.