If you've used Raven.js in the past, I'm sorry. It probably didn't work well, and you probably ended up with a ton of strange
Script Error. logs.
One of the goals with 1.0 is, in general, a much better understanding of why things weren't working right and figuring out solutions, either on our end or yours, to make the errors as meaningful as possible.
Also, from this point on, I'm personally committed to making Raven.js the best tool for debugging client side exceptions, and I encourage sending me feedback and reporting issues and ideas to make the project better. It's very hard to identify every scenario in every browser alone!
If you are using GetSentry, you can begin trying out the new Raven.js today. If not, you'll want to upgrade to Sentry 5.3.
I hope you enjoy it!