There is a cost that many companies don’t consider when using open source. It can cost a lot of money and time to keep upgrading sunsetted versions.Open source is free for companies to use until the author sunsets a version.These are some best practices that we we recommend when considering open source adoption:        - Who is the author? Do they have a strong reputation that is going to be around for a long time? Do they have the resources to support an enterprise library?        - How much online support is there in the community for this library? How many dependencies are on this library?        - Does it have an end of life policy? What’s going to happen when they rev on a version? Will companies have an option to stay on older versions for a long time?        - What should you consider when migrating to a supported framework after a version has been sunsetted?