It started life as : “WordPress Title Element/Tag Optimization”
Also had the title : “WordPress Title Tag SEO 2014”
Current title : “WordPress SEO Title Tag Tutorial”
You can see the URL structure (the WordPress Slug) of this page is still: “wordpress-title-element-tag-optimization” (because the page was originally called “WordPress Title Element/Tag Optimization”, had I created this page today (as I edit this article) the slug would be “wordpress-seo-title-tag-tutorial” to match the new title “WordPress SEO Title Tag Tutorial”.
So it’s OK to rename an old post, page, category etc… WordPress doesn’t automatically change the URL/slug: generally speaking don’t change the slug, you’ll loose rankings.
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