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I'm working on a site that has some blog posts from 2011 - 2013 ranking on the first page for relevant terms. I'm going through and updating some of the content, internal links, etc., and wanted to know if it's worth redirecting some of these blog posts into new pages (in WordPress). Right now, the blog post URLs are long - exampleURL.com/2011/3/9/blog-post-title/ and the dates show up in the SERPs. I'd like to have the date removed so that the content doesn't look outdated, and I'd also like to have cleaner URLs. In your opinion, is it worth creating new pages and redirecting the old blog posts, or is the benefit of doing this not worth the effort? Thanks!

I'm doing work for a law firm that has a lot of blog post content from 2010-2011 ranking for long-term keywords. These pages are displaying date snippets in SERPs, but because legal information can change year to year, I don't want the content to appear as though it's 2-3 years old. The date of the post is in the URL structure, so I can't change the publication date w/o changing the URL. So my question is twofold: is there a way to show an updated date snippet in search results, or block the date snippet from showing, even if the date is in the URL? Or are there other options - creating pages for each of these posts and 301ing them to the page that has a cleaner URL, etc.? Thanks in advance for your help!