You may not be aware of the updates LinkedIn makes to their platform because you don’t get a notification from LinkedIn.
The headline field now allows up to 220 characters, up from the previous 158. This can be a real opportunity when used effectively. I recommend you start with a keyword or two that represents your title and follow that with a brand statement expressing results you provide, or what happens because of you. Your goal should be to craft a compelling statement where someone would want to connect and learn more about you.