Providing first-class services to customers often involves keeping legacy technologies and maintaining necessary complexity. In the telco space, that means that just because you can offer cloud-native friendly 5G, it doesn’t mean that you can drop LTE service because customers still need back-up ways to connect. Deutsche Telekom will share how GitOps helped to bridge this gap and 3 key learnings to consider when you take this type of journey from legacy to cloud native. This talk will cover: 1) How not to underestimate the complexity of troubleshooting and how GitOps and Progressive Delivery provide safety to minimise downtime. 2) How to assess the impact of the legacy technology that you need to maintain. 3) How to set up the company’s cultural mindset especially around growing responsibilities for Operators. Deutsche Telekom will share how one way that they stayed on course and remained successful was by sticking to the GitOps principles. By also having a hyperscaler mindset (prioritising disaggregation, cloudification, and automation), they have been making progress on their Cloud Native journey.