In https://gerrit.wikimedia.org/r/#/c/388049 I proposed a setting allowing configuration of the time that VCS data is cached for on Special:Version.
The plan would be to set the cache time for beta and other testing sites to be much lower than on production sites.
Discussion on the patch raised the question, is it actually beneficial to cache this VCS data.
In order to move forward with the patch either by configuring the cache time or providing a maint script to purge the cache we need an answer to that question.
If the caching is not beneficial then we can simply remove it.
Tagging Performance-Team as they might be the correct team to answer this?