The function of outdated catalogs

As outdated catalogs may cause confusion we explain the reason for keeping them accessible.

1.) Bookmarked catalogs

There are visitors keeping bookmarks for future visits to their favorite catalogs.

2.) Linked catalogs

Many catalogs are linked from specialized blogs and forums.

The removal of a catalog would produce a dead end. It is more efficent to inform the user about a more current version of a catalog or a hint that a catalog is not valid any longer.

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