@oskardudycz.bsky.social 's feed is probably the most valuable for Event Sourcing. I'd also recommend the content from the folks at @axoniq.bsky.social.

So, the question isn’t whether DCB will change the way you build software. The question is:

How long until you start using it?

#EventSourcing #AxonFramework #Microservices #CQRS

If you're building high-throughput, event-sourced systems, this is the kind of shift that can change the way you think about designing aggregates forever.

We’ve spent years wrestling with the trade-offs between strong consistency and scalability. DCB says: Why not both?

The Axon team has been building toward this for years. Axon Framework 5 makes it a reality.

In short, your system gets smarter. Instead of making every event and command jump through the same transactional hoops, you get to decide: When is consistency critical? When is it flexible?

What does this mean in practice?
✅ Scalability without rigidity – No more over-engineering consistency for edge cases.
✅ Fewer bottlenecks – Reduces unnecessary contention by scoping transactions efficiently.
✅ Easier refactoring – Domain models can evolve without massive rewrites.

Imagine defining consistency as a dynamic rule, not a hardcoded limitation. Some transactions demand strong guarantees. Others can operate asynchronously without blocking the system. DCB lets you choose, per use case.

DCB changes the game: instead of locking boundaries in place, Axon Framework 5 introduces elasticity—consistency boundaries that can adapt at runtime.

You’ve probably felt it. Transactions spanning multiple aggregates that should be lightweight but aren’t. Command handling that should be fast but grinds under the weight of arbitrary constraints.

We architect for clarity. But systems don’t stay static. Why should consistency boundaries?

The Static Trap: most event-driven systems start with carefully drawn consistency boundaries—defining which aggregates must remain in sync. But as business logic evolves, those boundaries become brittle, turning what was once a smart domain model into a performance bottleneck.