# Bitcoin Core Adopting Controversial OP_RETURN Change

*Author: Bankless*
*Published: Jun 10, 2025*
*Source: https://www.bankless.com/fr/read/bitcoin-core-adopting-controversial-op_return-change*

---

Bitcoin Core will remove its 80-byte OP_RETURN limit in its v30 update, enabling 4MB data outputs and stirring intense community debate.

## **What’s the Scoop?**
- **Expanded Capacity**: Bitcoin Core's new update removes the 80-byte OP_RETURN limit, allowing up to 4MB of data per output, effective October 30.
- **Motivation for Change**: The update aims to prevent harmful data storage methods that bloat Bitcoin's memory and centralize transaction processing.
- **Community Debate**: The decision has sparked backlash, with critics arguing the change alters Bitcoin's peer-to-peer payment focus.