Migrating IIB V9 system
Would you want to have support for your production system, question is, to which version should you migrate?
Option 1: Migrate to IIB V10
If you are not interested to change the architecture of your system and stability is one of your major concerns, we would suggest IIB V10. Yes, there won’t be IIB V11 (this is already ACE) but IIB V10 will need a minimum of change in your architecture (if any) and for the next 4-5 years you can count on support from IBM. V10 will get you a lot of new cool features such as hybrid cloud possibilities so don’t ignore them.
Option 2: Migrate to ACE V11
You can take a more adventurous route and migrate from V9 (or even V10) to ACE V11. Why? Well, if your driver is modernization of company IT by jumping into Cloud era, V11 welcomes you. With V11 you can more easily deploy apps as a Docker container. There are even Helm charts for the IBM Cloud Private. Good thing to note here is that most of your knowledge developing IIB solutions is still applicable. There are few differences and edge cases especially with aggregation. What is changed is operations. ACE enables you to achieve higher level of DevOps with capability to put configuration (policy files) into versioning control. There are more than few capabilities mentioned here. Question is, are you (your IT) ready for the challenge? Either way, if you choose IIB v10 or ACE v11 your applications should run just fine. Good luck if you are in the process of upgrading. We are always here to help and welcome to accept a challenge.