As a Jira Admin, I want to hide the version number showing to unauthenticated users

Issue Summary

Jira displays it's own version number in several pages, including the page markup and application footer. 

Some of these pages are available unauthenticated, for instance, the login and logout pages.

Jira administrators may wish to hide these version numbers from users as there may be a requirement to not identify the running product version, particularly to unauthenticated users. 

Actual Result

Version number can be found in the page markup, for example:

• <meta name="application-name" content="JIRA" data-name="jira" data-version="8.5.0">
• <input type="hidden" title="JiraVersion" value="8.5.0">
• jira/s/...-CDN/dexrks/805000/.../.../_/download/contextbatch/css/jira.login,_super/batch.css

And is displayed in the Jira footer (eg):

• Atlassian Jira Project Management Software (v8.5.0#805000-sha1:8875eca)

Suggested Result  

A) By default, hide the version number being displayed on unauthenticated pages (EG, login/logout)

and/or

B) Provide a toggle switch in Jira Admin to hide the version number being displayed in other "logged in" areas of Jira 

Workaround

We have added a workaround in the KB article https://confluence.atlassian.com/display/JIRAKB/Hiding+the+Jira+version+number+from+page+markup

Please take care to note the workarounds limitation.