This plugin will display a custom notification on every single post older than 1 year (365 days).

Plugin that facilitates auto post sharing and scheduling on social networks, keeping the content alive and active.

Removes the date stamp from older posts (you choose how old), while leaving the date stamp on newer posts. Ideal for blogs with evergreen content.

Adds a notification before the actual post / page content when the post becomes old.

RevivePress, the all-in-one tool for republishing & cloning old posts and pages which push old posts to your front page, the top of archive pages, and back into RSS feeds. Ideal for sites with a large repository of evergreen content.

Display a notice on old posts.

Update posts date automatically by setting the date to the current date.