Software Archaeologist: Crushee

For software that is discontinued or no longer updated: what is known, from official sources only.

Legacy (no recent release) No release for a long time; it may still work, but expect fewer fixes.

Last version

Open the Time Machine

The platform never hosts installers. These are the official places for this software; anything else may be a copy.

No known open vulnerability in the last version (according to the configured feeds).

Catalog alternatives ordered by facts only: still released first, then verified trust levels. Never sponsored.

No alternative is recorded yet.

No "replaces" link in the knowledge graph.

Export your data, settings and licences from the old software before you remove it.
Check that the successor opens your existing files and project formats; test with copies first.
Run the old and the new software side by side for a while when the tasks are critical.
Move saved passwords, keys and certificates with the vendors' official tools only.
Keep the last official installer and its checksum from the official source, in case you must roll back.

A summary of stored catalog data; successors are suggestions to evaluate, not endorsements.