# Blob scaling in 2026![](https://notes.ethereum.org/_uploads/H11SFNwbbl.jpg) # Max blobs flag tracker Nethermind: `--Blocks.BlockProductionBlobLimit=1` - latest master Reth: `--builder.max-blobs` - latest main Geth: WIP Besu: N/A Erigon: N/A NimbusEL: N/A # Engine API Optimization sszing the engine api # Cell level optimization tracker ### CL: Prysm: PR pending - branch MarcoPolo:partial-columns Lighthouse: PR pending - branch dknopik:partial-columns Teku: N/A Grandine: N/A Nimbus: N/A Lodestar: N/A ### EL: Geth: [PR-33404](https://github.com/ethereum/go-ethereum/pull/33404) Nethermind: [PR-9942](https://github.com/NethermindEth/nethermind/pull/9942) Besu: N/A Erigon: N/A Reth: N/A kurtosis config: ```yaml= participants_matrix: el: - el_type: geth el_image: ethpandaops/geth:marcopolo-getBlobsV3 - el_type: nethermind el_image: ethpandaops/nethermind:add-engine-getblobsv3 cl: - cl_type: lighthouse cl_image: ethpandaops/lighthouse:dknopik-partial-columns - cl_type: prysm cl_image: ethpandaops/prysm-beacon-chain:marcopolo-partial-columns additional_services: - dora - spamoor global_log_level: debug spamoor_params: spammers: - scenario: blob-combined config: throughput: 15 sidecars: 6 ```
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ethpandaops For the ethpandaops team, devops for EL/CL layers
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bal-devnet-1 spec

:::info :mega: bal-devnet-1 targets to launch early Jan 2025. ::: EIP List for bal-devnet-1 EIP-7928: Block-Level Access Lists :new: Key: :up:, EIP has updated!

12/16/2025
fusaka-devnet-3 spec

:::info :mega: fusaka-devnet-3 launched on 23rd Jul 2025 and shut off on 8th of Dec 2025. ::: :::info We aim to test all validator custody features in this devnet ::: :::info Meta EIP status tracker: https://notes.ethereum.org/@marioevz/fusaka-sfi-tracker

12/8/2025
bal-devnet-0 spec

:::info :mega: bal-devnet-0 targets to launch on end of Oct 2025. ::: EIP List for bal-devnet-0 EIP-7928: Block-Level Access Lists :new: Key: :up:, EIP has updated!

12/8/2025
EIP-7928 Block-Level Access Lists: OpenTelemetry Tracing Specification

Version: 2.1.0 Status: Draft Date: 2025-12-03 Abstract This specification defines a uniform OpenTelemetry (OTel) tracing and metrics standard for EIP-7928 Block-Level Access Lists (BAL) across Ethereum execution clients. The focus is on measuring the two primary performance benefits BAL enables: Parallel State Prefetching — Reading state from disk in parallel before execution Parallel Transaction Execution — Executing non-conflicting transactions concurrently

12/8/2025
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