Board Thread:New Features/@comment-26522807-20160208225359/@comment-1251315-20160211102021

As pointed out, Wikia uses a very heavily modded version of 1.19. It takes years of work to upgrade MediaWiki here on Wiki, because there are so many wiki's that use the service, so upgrades are very slow and need to be planned out in detail. They will upgrade when they feel a need to do so (usually when the version they use becomes EOL and has no further support).