Use the source hierarchy
Official announcements and Steam update notes are the strongest public evidence for a roadmap entry. Community discussion can identify a player concern or expected change, but it should remain labeled as discussion until a first-party source confirms it.
Date every entry
Each update note should include the published date, source link, affected system, and whether the change was observed in the current build. This protects players from stale guides that silently carry old assumptions.
Current status
This is the update-log framework. A live roadmap should be populated from dated official posts and patch notes, not inferred from rumors or copied competitor summaries.