Is there any instruction to upgrade from Sentry 9 to 10?
Not comprehensively but there is some work and discussion over at https://github.com/getsentry/onpremise/issues/128. You can try those and follow that issue for a more complete and robust guide. We don’t have a timeline for that yet though.
Hi, is the document available now ?
No such document exists yet. We are planning to have it in the coming months.