How do we upgrade the Jira calendar plugin? We have the 4.0.3 version installed but we need to upgrade to the 5.0 version since 4.0.3 is not supported with Jira 8.0.
Don't want to lose any data.
Download the latest version here and upload it to Jira using the UPM.
https://confluence.atlassian.com/upm/installing-add-ons-273875715.html#InstallingMarketplaceapps-Installingbyfileupload
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