A year ago, we launched our new site and announced that we were leaving our beloved
name, Google Webmasters, behind for a new moniker: Google Search Central. This year, we’ve been
working with our internal SEO team to improve our content, writing lots of new documentation,
migrating 13 local language blogs, and developing a new checklist for our home page.
Source: Google Webmaster Central Blog
Link: One year of Google Search Central