Infrastructure development on BNB Chain reached a new level of maturity in 2025, according to updates shared by BNB Chain Developers and supported by on-chain data from Messari.
Improvements across execution clients, block construction, and MEV protection significantly reshaped network reliability and security over the year.
Faster Clients and Near-Universal Builder Adoption
One of the most notable milestones in 2025 was the alpha launch of the Reth client on BNB Chain. The new client delivered faster synchronization times and lower latency, improving performance for validators and node operators.
Infrastructure maturity on BNB Chain stood out in 2025:
🔸 Reth client alpha launched with faster syncs and lower latency
🔸 99.8% of blocks used the Builder API
🔸 Sandwich attacks fell by more than 95% through MEV protectionsRead more: https://t.co/hNbHmGbFDP pic.twitter.com/rbeARbiGrV
— BNB Chain Developers (@BNBChainDevs) December 21, 2025
At the same time, block construction became highly standardized. By late 2025, 99.8% of all blocks on BNB Chain were produced using the Builder API. This near-universal adoption reflects a shift toward more efficient and transparent block production, reducing fragmentation in how blocks are assembled across the network.
MEV Protections Cut Sandwich Attacks Sharply
The chart highlights a major rise in MEV-aware block production during the year. MEV block output increased by 136.1% in Q3 alone, coinciding with the rollout of BSC’s Builder API specification (BEP-322).
As a result, sandwich attacks fell by more than 95%. This decline signals that MEV protections became materially effective, limiting one of the most damaging forms of user-facing exploitation in DeFi trading. While MEV activity itself increased, its extraction became more controlled and less harmful to regular users.
What the Data Suggests
Together, these metrics point to a structurally stronger network. Faster execution clients improved baseline performance, standardized block building reduced inefficiencies, and MEV protections materially enhanced user safety. Rather than isolated upgrades, the 2025 data shows coordinated infrastructure progress across multiple layers of BNB Chain.
The combination of rising MEV block production and sharply lower sandwich attacks suggests that the network is not eliminating MEV, but managing it more effectively, an important distinction for long-term scalability and DeFi sustainability.
Bigger Picture
BNB Chain’s 2025 infrastructure gains position it as a more mature execution environment compared with prior cycles. With most blocks now built through a common API and MEV risks significantly reduced, the network enters the next phase with stronger technical foundations and improved market integrity.
