Kntnt Disable Old Slugs

This mu-plugin disables WordPress's default behavior of storing old post slugs and creating 301 redirects from them. Ideal for sites where permalink changes are rare or undesired, it improves performance by eliminating unnecessary database entries and redirect checks.

• Disables Old Slug Storage: Prevents WordPress from saving previous slugs to the _wp_old_slug meta key for posts.
• No Automatic Redirects: Stops WordPress from issuing 301 redirects from old slugs to new ones, reducing server load and avoiding potential redirect chains.
• Reduces Database Size: Removes the storage overhead of old slug entries, especially beneficial for sites with many post updates.
• Simple Setup: Drop the plugin file into the /wp-content/mu-plugins/ directory. No configuration required.
• Compatible with Post Types: Works with all public post types that use slugs, including custom post types.

By preventing old slug retention, this plugin ensures that only the current slug is used, simplifying URL management and improving site efficiency.