It looks like every changelog entry has been truncated at the first comma.
Another example is "Users can now add notes for Action", which should read "Users can now add notes for Action, Transition, Parallel, and Enclosing steps.", from Nightly 8.3 Changelogs - 2026 and beyond - #86 by system
It looks like at least the changelog for 8.1.53 shares the same problem, along with having some extra quotes I don't think were supposed to be included.