Google has issued an official update to its Chrome browser to fill 20 security holes, one of which is deemed "critical" and eight of which are considered "high" in severity. The stable version also includes new malware download protection that was introduced last month in beta mode. "If the executable [you attempt to download] doesn't match a whitelist, Chrome checks with Google for more information, such as whether the website you're accessing hosts a high number of malicious downloads," software engineer Noe Lutz wrote in a blog post on Wednesday. Google also announced that it has awarded security researchers some $700,000 for finding bugs in Chromium and the company's web application properties, such as YouTube.