GitHub's GraphQL schema changes multiple times a day. We have some neat automation to automatically update our reference documentation whenever the schema is modified, but there wasn't an easy way to visualize the day-to-day additions and modifications to the schema.
We're now happy to announce the GraphQL Changelog. Every day, around 4pm PST, Hubot will automatically compose a post detailing the GraphQL additions made in the last day. We've also got an RSS feed of this changelog if you want to subscribe. To support this workflow, we're using the very awesome graphql-schema_comparator gem, which provides a diff between two schemas.
If you have any questions, feel free to contact us!