# merge-devnet-5 and Kiln testnet version information Please refer to the Eth R&D discord discussion on requirements before filling up this table. (These testnets require [kiln spec v2](https://hackmd.io/@n0ble/kiln-spec) to be implemented) Testnet config: https://github.com/eth-clients/merge-testnets/tree/main/merge-devnet-5 Consensus layer | client name | taking part in testnets? | git branch to use | docker image if possible | -------- | -------- |-------- | -------- |-------- | | Lighthouse |Y|unstable|sigp/lighthouse:latest-unstable| | | | Teku | Y | master | consensys/teku:develop | | | Lodestar | Y | master | chainsafe/lodestar:next | | | Nimbus | Y | kiln | parithoshj/nimbus:merge-f6e4c31 | | | Prysm | Y | | gcr.io/prysmaticlabs/prysm/beacon-chain:kiln-e2e5a0,gcr.io/prysmaticlabs/prysm/validator:kiln-a424f5| Execution layer | client name | taking part in testnets? |git branch v1 | docker image if possible | | -------- |-------- | -------- | -------- |-------- | | Geth | Y | merge-kiln | parithoshj/geth:master-e0a1fd5 | | | Nethermind |Y|[kiln](https://github.com/NethermindEth/nethermind/pull/3805) | nethermindeth/nethermind:kiln_0.5 | | Erigon | Y | - | | | Besu | Y | | hyperledger/besu:22.1.2-SNAPSHOT |