Currently, most of the verbiage around upgrade concerns the Cloudera Manager paths for packages or parcels.
Probably there will be some new details in the context of an ASF release.
Perhaps some of this info can be delegated to build instructions, README types of files, ancillary to the main docs containing the SQL Ref and such. That might be easier for maintenance where there are fast-changing version numbers, package names, etc. (Just an idea.)