Suggested by @jaller94 in chat.
Include timestamps for each release so that users can be informed in the UI when an add-on was last updated.
Also suggested trying to flag known vulnerabilities.
Automatically detecting known vulnerabilities could be challenging across different programming languages and I'm not sure is something we'd want to expose at the UI level, but we could at least include a timestamp for each release in the addon-list so that we can include a last updated date in the UI (e.g. "Last updated: 1 month ago").