BNB Chain Cuts Erigon Support in 2025 Execution Client Shake-Up

BNB Chain is pulling the plug on Erigon. The execution client gets its sunset notice for 2025, forcing node operators to pick a new lane in the network's evolving architecture.

Client Consolidation Ahead

This isn't a surprise attack—it's a strategic pruning. The chain is streamlining its client diversity, betting that a more focused tech stack will boost performance and simplify maintenance. For teams running Erigon nodes, the clock is now ticking to migrate.

The Node Operator's Dilemma

Migration means work—and potential downtime. Operators must evaluate alternatives, test compatibility, and execute the switch before the 2025 cutoff. It's a backend headache that highlights the less-glamorous cost of blockchain 'decentralization.'

A Push for Performance

Behind the deprecation notice lies a clear goal: a leaner, faster chain. By sunsetting one client, BNB Chain's core developers can channel resources into optimizing the remaining options, aiming for better sync times and lower hardware demands.

One less client to worry about—and one more reminder that in crypto, even the infrastructure you bet on has an expiration date. Just ask the traders who bought the 'decentralization' narrative at its peak.

Erigon’s Support Will End in December 2025

The Network has stated that all the Erigon node operators have to complete their migration to either RETH or Geth three (3) years from now, on December 31st, 2025, as a matter of sound operating procedure. For optimal results, it is advisable to take time to evaluate your current environment and start testing and migrating as quickly as possible to facilitate a seamless transfer process.

“As the network continues to advance performance and stability, the recommended client list is being refined to support the ecosystem’s long-term needs.”

A New Client Will Be Introduced – Reth-BSC

The next generation of the blockchain community will see the introduction of a new execution client called Reth-BSC. Reth-BSC will be built using Rust, focusing on significantly increasing execution speed and reducing resource consumption. (Lower maintenance costs). Reth-BSC will employ a modular architecture that allows for future upgrades regarding performance and scalability as users increase within the network.

“BNB Chain is adding support for Reth-BSC, a high-performance Rust-based client offering improved speed, lower resource usage, and a modular design built for the future.”
— BNB Chain Official Blog

Multi-Client Ecosystem

The network has reiterated its commitment to embracing a diverse set of clients, which is necessary for the decentralization and security of the network. Going forward, the network will provide official support for two execution clients, Reth (Rust-based) and Geth (Go-based), which decrease systemic risk and increase the overall resiliency of the network.

“By adopting both Reth and Geth, the network maintains strong client diversity, which is essential for security and stability.”

The ecosystem stressed that any node operator currently running an Erigon client must migrate to either Reth or Geth by December 31, 2025. As best practice, early testing and migration are recommended to ensure a seamless and uninterrupted transition.

Developer Reminder to Prepare for the Sunset of Erigon

According to the recent update on X by the developers of the network, communicated to users via the Erigon client to inform them about the need for node operators to begin migrating to one of the other supported alternatives by December 31, 2025.

Reminder for node operators:

Support for the BNB Chain Erigon execution client ends on Dec 31, 2025.

If you’re still running Erigon, please migrate to Reth or Geth ahead of the deadline.

Read the full update👇https://t.co/XtivkB1I5d pic.twitter.com/oXN8e1SBtP