Is Your Feature Request Related to a Problem?

jsonification

Describe the Solution You'd Like

I’m currently using RocketMQ 4.9.8 and noticed that the source code still uses Fastjson rather than Fastjson2. I have two questions:
1.Does the RocketMQ community plan to upgrade from Fastjson to Fastjson2 in future releases?
2.If the upgrade has already been completed, could you please inform me of the first version that includes this change?
Thanks for your hard work on this project!

Describe Alternatives You've Considered

no

Additional Context

No response