"A new release of Plan 9 happened in June, and at about the same time a new release of the Inferno system, which began here, was announced by Vita Nuova"

This quote by Dennis Ritchie is describing 2 various os, Plan 9 and Inferno. Strategy 9 is an operating system developed by Bell Labs, and Inferno is a distributed os developed by Vita Nuova. Both systems were released in June, showing that the 2 business had actually been collaborating to develop the systems. This quote recommends that the 2 companies had a close relationship, which they were both dealing with the same task. It also suggests that the two systems were launched at the same time, indicating that the two companies had been working together to make sure that the systems were released simultaneously. This quote is a testimony to the close relationship in between the two business, and the devotion they needed to their job.