The Bitcoin Core development team is implementing a significant update to its transaction limit, set to raise the size limit of OP_RETURN from 80 bytes to nearly 4 MB. This change will be part of the upcoming Core 30 release in October and is expected to increase transaction data capacity. The move addresses concerns about the effectiveness of the existing limit for facilitating more complex transactions like DeFi applications and NFTs. This shift marks a key victory for reformist factions within Bitcoin, who have long advocated for this larger capacity. While some users express concern regarding potential disruption to network stability, others welcome this change as a step towards unlocking further functionality in the Bitcoin ecosystem.