Confluence 9 EAP communication began in January, with ~250 replies from vendors working on compatibility: Preparing for Confluence 9.0 - EAP out now
This is now the most replied to CDAC thread of all time, and should give some hint as to the complexity/burden pushed onto app vendors.
Bitbucket team to my knowledge have put out no information prior to this post (excluding general platform announcements). Some vendors have been working 5+ months on Confluence 9 compatibility. For Bitbucket we are given the impression we have ~4 weeks to adopt platform 7.
I’ll give some credit for actually publishing an EAP which contains the full set of changes, in contrast to Jira, which has a similar short timeline but has yet to adopt platfom 7 fully.
How is this an appropriate timeline for vendors to adopt such a disruptive and risky platform release?
Apps are not going to be ready, or will be rushed together at best. In the end customers will be those that suffer the downstream consequences.
CDAC may seem busy, but only scratches the surface of the full app ecosystem. Many vendors may not even know about platform 7 yet, not to mention internal customer built apps.