# 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](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-7928.md) :new: **Key:** - :up:, EIP has updated! - :new:, new EIP added. ### Test Releases **Consensus Specs:** [`v1.6.0-alpha.6`](https://github.com/ethereum/consensus-specs/releases/tag/v1.6.0-alpha.6) :heavy_check_mark: **Execution Specs:** EEST Block-Level Access Lists (BAL) pre-release [v1.0.0](https://github.com/ethereum/execution-spec-tests/releases/tag/bal%40v1.0.0) :heavy_check_mark: ### Spec versions required & Open PRs **Beacon Metrics** **Execution Metrics** **Beacon API** **Builder Specs** **Consensus Specs** **Execution APIs** **Execution Spec PRs** ## Kurtosis Interop Conifg (Pre-devnet testing) ```yaml= participants_matrix: el: - el_type: geth el_image: ethpandaops/geth:bal-devnet-0 cl: - cl_type: lighthouse cl_image: ethpandaops/lighthouse:unstable supernode: true network_params: fulu_fork_epoch: 0 gloas_fork_epoch: 1 additional_services: - dora ```
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ethpandaops For the ethpandaops team, devops for EL/CL layers
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fusaka-syncing-bugs

Here is a collection of overall bugs across devnet 3 and mainnet: Prysm: During the latest non finality, we had an issue when starting a node from a checkpoint with a pre-existing DB. (Starting from genesis was OK, and starting from a checkpoint with an empty DB was OK. This bug was possibly more likely to happen when the latest justified checkpoint was far away from the latest finalized checkpoint. (When, for example, we have a single checkpoint with > 2/3 participation). Teku:

9/15/2025
fusaka-devnet-5 spec

:::info :mega: fusaka-devnet-5 targets to launch on 10th of Sep 2025 and will shut off 7d later. ::: :::info We aim to test 1500 nodes on this testnet, using the same spec as devnet-3/4. ::: :::info We aim to use trunk branches of all clients!

9/9/2025
epbs-devnet-0 spec

:::info :mega: epbs-devnet-0 targets to launch on end of Oct 2025. ::: EIP List for epbs-devnet-0 EIP-7732: Enshrined Proposer-Builder Separation :new: Key: :up:, EIP has updated!

8/25/2025
fusaka-devnet-4 spec

:::info :mega: fusaka-devnet-4 targets to launch on 8th Aug 2025 and will shut off on 15th Aug 2025 ::: :::info We aim to test 1500 nodes on this testnet, using the same spec as devnet-3. ::: Changes include: Data column sidecars by root

8/21/2025
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