Google News has introduced a ‘recrawl’ feature which will check for updates in news articles and add them to its index, the Google News Blog has announced. News articles often aren’t static, software engineers Andy Golding and Kiran Gunda explain on the blog, and often change over time to correct errors or add new information. Sometimes they change URLs or become unavailable after a certain amount of time. Google’s news bots crawl the internet looking for new news articles and adding them to the Google News index. The recrawl feature will enable them to focus on collecting all the newest news articles, while still making sure that the index displays the most up-to-date information. Most changes to articles are made shortly after publication, so Google News will revisit them most frequently in the first day after indexing. Then, the bots will visit less often.