📦 Bitcoin Core 30.0 Effectively Lifts the OP_RETURN Limit

On October 10, 2025, Bitcoin Core v30.0 shipped, raising the default -datacarriersize from 83 bytes to 100,000 — effectively removing the old OP_RETURN data limit — and allowing multiple OP_RETURN outputs per transaction. The change split the developer community openly, drawing criticism from Luke Dashjr among others.