The issue was solved.
I upgraded JIRA to new (7.5.0) version. After that JIRA Software could be updated with success. I noticed that my JIRA core version was 7.2.6 when JIRA Software version was 7.4.2.
I guess, somehow, previous upgrading was not completed.
Atlassian ranks project attributes as the third most important factor impacting performance in the category of data. It’s not surprising, since project attributes are precisely the rules used to ma...
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