GitHub has been experiencing service instability, with slowdowns, outages, and issues with its Copilot feature. The company's status page has been changed, making it harder to track the availability of its services. GitHub's Service Level Agreement for Enterprise Cloud customers specifies 99.9 percent uptime, but the company does not guarantee this for all users. The outages have raised concerns about the reliability of cloud services and the need for customers to plan for downtime.