We have some detailed notes on prior upgrades like
* [[/MediaWiki/Upgrade/REL1_26_to_REL1_27]]* [[/MediaWiki/Upgrade/REL1_25_to_REL1_26]]
Now, we're using a more automated DevOps approach to upgrades; and even running multiple versions if you require a legacy version (in a private wiki where there is less security concern). See https://QualityBox.us
[[Category:Wiki]]