> Realistically how many hours of work went into this upgrade process then? Rails 6 is not a month old yet. What this describes is co-development, over the las

> Realistically how many hours of work went into this upgrade process then? Rails 6 is not a month old yet. What this describes is co-development, over the last year, of Rails 6 to ensure that it meets the needs of a big, influential user of this OSS project: > We were able to achieve this level of stability for the upgrade because we were heavily involved with its development. This is not representative of a traditional upgrade.