Planned maintenance: Important UK Network upgrades, install & testing. 00:01-04:00 BST Friday 10th June. Work to increase redundancy, security & logical service grooming. Also installing additional London transit link. Possible short periods network unavailability. Updates here We will conduct important planned maintenance to increase redundancy on switch stack, implement revised infrastructure ACLs, remove redundant configuration, and perform security upgrades to routing infrastructure in London and Manchester. We will also add in a new transit provider at our London data centre to improve resilience and performance.