The OP Labs team maintains two parallel devnets. Protocol upgrades promote from one network to the next, until they
are eventually deployed to our production Sepolia testnet. The devnets are:
Alphanet: Contains production-bound protocol upgrades that will be scheduled in some upcoming hardfork. All
updates are active at genesis. The purpose of this devnet is to deploy protocol upgrades earlier, and to decouple
deployment from hardfork scheduling. Protocol upgrades must be deployed on Alphanet before being deployed on the
Betanet.Betanet: Contains production-bound protocol upgrades that will be scheduled in the next hardfork. Upgrades are
activated after genesis using hardfork timestamps. The purpose of this hardfork is to validate the upgrade process,
and solidify the scope of a hardfork before activating it on our production testnet. Protocol upgrades must be
deployed on the betanet before being deployed on testnet.
The Alphanet is deployed on a monthly basis. The Alphanet will be redeployed even if there are no changes to prevent a
devnet from becoming someone’s production network. The Betanet is deployed on an ad-hoc basis when we’re ready to cut
the next hardfork, and will persist until the next Betanet is cut.
This site contains documentation and network configuration information for all devnets. Network documentation is
generated from the chain manifest files in the alphanets and betanets directory. See
the source for more information.
Status: ⏸️ Offline
Alpaca contains changes to OP Contracts Manager and incident response improvements.
It was deployed on 01-14-2025.
Type Name Chain ID Config Rollup Genesis RPC
L1 Sepolia 11155111- - - - L2 alpaca-0 11155111100000View View Download RPC
Parameter Value
OP Deployer Version op-deployer/v0.0.11L1 Contracts Version 984bae9146398a2997ec13757bfe2438ca8f92ebL2 Contracts Version op-contracts/v1.7.0-beta.1+l2-contracts
Scope Parameter Value
global l2GenesisHoloceneTimeOffset0x0
Component Version
op-node op-node/v1.10.2op-geth op-geth/v1.101411.4-rc.4op-reth op-reth/v1.1.5op-proposer op-proposer/v1.10.0-rc.2op-batcher op-batcher/v1.10.0op-challenger op-challenger/v1.3.1-rc.4
Status: ⏸️ Offline
Badger contains latest contracts and software versions.
It was deployed on 03-03-2025.
Type Name Chain ID Config Rollup Genesis RPC
L1 Sepolia 11155111- - - - L2 badger-0 420100000View View Download RPC
Parameter Value
OP Deployer Version c46bb168e221c2b961a63b0107cbf6a95ffc5348L1 Contracts Version c46bb168e221c2b961a63b0107cbf6a95ffc5348L2 Contracts Version c46bb168e221c2b961a63b0107cbf6a95ffc5348
Scope Parameter Value
global l2GenesisHoloceneTimeOffset0x0
Component Version
op-node op-node/v1.11.3-rc.1op-geth op-geth/v1.101500.2-rc.1op-reth op-reth/v1.2.0op-proposer op-proposer/v1.10.0-rc.3op-batcher op-batcher/v1.11.4-rc.1op-challenger op-challenger/v1.3.2
Status: 🟢 Online
MT Cannon
Isthmus L1 Contracts
It was deployed on 03-14-2025.
Type Name Chain ID Config Rollup Genesis RPC
L1 Sepolia 11155111- - - - L2 cheetah-0 420100002View View Download RPC
Parameter Value
OP Deployer Version op-deployer/v0.3.0-rc.3L1 Contracts Version op-contracts/v3.0.0-rc.2L2 Contracts Version op-contracts/v3.0.0-rc.2
Scope Parameter Value
global l2GenesisHoloceneTimeOffset0x0global l2GenesisIsthmusTimeOffset0x6A3C4B96global mipsVersion2
Component Version
op-node op-node/v1.12.1-rc.1op-geth op-geth/v1.101503.1-rc.1op-reth op-reth/v1.3.1op-proposer op-proposer/v1.10.0op-batcher op-batcher/v1.11.5
Status: 🟢 Online
Operator Fee
L2 Withdrawal Root in Header
Pectra Support
It was deployed on 04-02-2025.
Type Name Chain ID Config Rollup Genesis RPC
L1 Sepolia 11155111- - - - L2 dolphin-0 420100003View View Download RPC
Parameter Value
OP Deployer Version op-deployer/v0.3.0-rc.5L1 Contracts Version op-contracts/v3.0.0-rc.2L2 Contracts Version op-contracts/v3.0.0-rc.2
Scope Parameter Value
global l2GenesisIsthmusTimeOffset0xe10global mipsVersion2
Component Version
op-node op-node/v1.13.0-rc.1op-geth op-geth/v1.101503.2-rc.5op-reth op-reth/v1.3.5op-proposer op-proposer/v1.10.0-rc.3op-batcher op-batcher/v1.12.0-rc.1
Status: 🟢 Online
Flashblocks Alphanet
It was deployed on 04-24-2025.
Type Name Chain ID Config Rollup Genesis RPC
L1 Sepolia 11155111- - - - L2 flashblocks-alpha 420100004View View Download RPC
Parameter Value
OP Deployer Version op-deployer/v0.3.0-rc.3L1 Contracts Version op-contracts/v3.0.0-rc.2L2 Contracts Version op-contracts/v3.0.0-rc.2
Scope Parameter Value
global l2GenesisIsthmusTimeOffset0x0global mipsVersion2
Component Version
op-node op-node/v1.13.2-rc.3op-geth op-geth/v1.101503.1-rc.1op-reth op-reth/v1.3.11op-proposer op-proposer/v1.10.0-rc.3op-batcher op-batcher/v1.12.0-rc.1rollup-boost rollup-boost/sha-f2ee10aop-rbuilder op-rbuilder/sha-7f05d34
Status: 🟢 Online
It was deployed on 02-06-2025.
Parameter Value
OP Deployer Version 31a9c298416b63402f1d1c95062dc438fc5d1ff3L1 Contracts Version 31a9c298416b63402f1d1c95062dc438fc5d1ff3L2 Contracts Version 31a9c298416b63402f1d1c95062dc438fc5d1ff3
Scope Parameter Value
global l2GenesisHoloceneTimeOffset0x0global l2GenesisInteropTimeOffset0x0
Component Version
op-node op-node/v1.11.1op-geth op-geth/v1.101500.1op-proposer op-proposer/v1.10.0op-batcher op-batcher/v1.11.4op-challenger op-challenger/v1.3.2op-supervisor b4e38ebb63babe634659dd6356e898d2b7f742f0
Status: 🟢 Online
It was deployed on 03-26-2025.
Parameter Value
OP Deployer Version f79ed8b9c9cbdbf8bb492074f3f98da7f072e21aL1 Contracts Version f79ed8b9c9cbdbf8bb492074f3f98da7f072e21aL2 Contracts Version f79ed8b9c9cbdbf8bb492074f3f98da7f072e21a
Scope Parameter Value
global l2GenesisInteropTimeOffset0x0global l2GenesisIsthmusTimeOffset0x0global mipsVersion2interop-rc-alpha-0 l2BlockTime2interop-rc-alpha-1 l2BlockTime1
Component Version
op-node op-node/v1.12.3-dev.1op-geth op-geth/v1.101503.2-rc.3op-proposer op-proposer/v1.10.1-rc.1op-batcher op-batcher/v1.11.6-dev.1op-challenger op-challenger/v1.3.4-rc.2op-supervisor op-supervisor/v0.2.0-dev.3op-reth op-reth/v1.3.5op-dispute-mon op-dispute-mon/v1.4.1-rc.1
Status: ⏸️ Offline
It was deployed on 03-02-2025.
Parameter Value
OP Deployer Version op-deployer/v0.0.11L1 Contracts Version op-contracts/v1.8.0-rc.4L2 Contracts Version op-contracts/v1.7.0-beta.1+l2-contracts
Scope Parameter Value
global l2GenesisHoloceneTimeOffset0x0
Component Version
op-node op-node/v1.11.1op-geth op-geth/v1.101500.1op-reth op-reth/v1.2.0op-proposer op-proposer/v1.10.0op-batcher op-batcher/v1.11.4op-challenger op-challenger/v1.3.2op-dispute-mon op-dispute-mon/v1.3.0
Status: ⏸️ Offline
It was deployed on 02-20-2025.
Type Name Chain ID Config Rollup Genesis RPC
L1 Holesky 17000- - - - L2 balrog-0 420110003View View Download RPC
Parameter Value
OP Deployer Version op-deployer/v0.0.11L1 Contracts Version op-contracts/v1.8.0-rc.4L2 Contracts Version op-contracts/v1.7.0-beta.1+l2-contracts
Scope Parameter Value
global l2GenesisHoloceneTimeOffset0x0
Component Version
op-node op-node/v1.11.1op-geth op-geth/v1.101500.1op-reth op-reth/v1.2.0op-proposer op-proposer/v1.10.0-rc.2op-batcher op-batcher/v1.11.1op-challenger op-challenger/v1.3.1op-dispute-mon op-dispute-mon/v1.3.0
Status: 🟢 Online
Upgrade 14
MT Cannon
Isthmus L1 Contracts
It was deployed on 03-14-2025.
Parameter Value
OP Deployer Version op-deployer/v0.2.0-rc.2L1 Contracts Version op-contracts/v2.0.0-rc.1L2 Contracts Version op-contracts/v1.7.0-beta.1+l2-contracts
Scope Parameter Value
global l2GenesisHoloceneTimeOffset0x0
Component Version
op-node op-node/v1.12.1-rc.1op-geth op-geth/v1.101503.1-rc.1op-reth op-reth/v1.3.1op-proposer op-proposer/v1.10.0op-batcher op-batcher/v1.11.5
Status: 🟢 Online
Upgrade 15
Operator Fee
L2 Withdrawal Root in Header
Pectra Support
It was deployed on 09-04-2025.
Type Name Chain ID Config Rollup Genesis RPC
L1 Sepolia 11155111- - - - L2 deimos-0 420110008View View Download RPC
Parameter Value
OP Deployer Version op-deployer/v0.3.0-rc.5L1 Contracts Version op-contracts/v3.0.0-rc.2L2 Contracts Version op-contracts/v3.0.0-rc.2
Scope Parameter Value
global l2GenesisIsthmusTimeOffset0x0global mipsVersion2
Component Version
op-node op-node/v1.13.0-rc.1op-geth op-geth/v1.101503.2-rc.5op-reth op-reth/v1.3.5op-proposer op-proposer/v1.10.0-rc.3op-batcher op-batcher/v1.12.0-rc.1