Major Description
The "Content Detection" page https://tika.apache.org/2.1.0/detection.html continues to document Metadata.RESOURCE_NAME_KEY as a critical property for content detection. This constant no longer exists, so the code examples won't compile. I managed to discover what I think is its replacement by browsing the commit associated with TIKA-1974, but updated documentation and perhaps a specific mention in the release notes would be helpful for this widely used constant.