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docs: update messenger links #850

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Jul 29, 2023
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docs: update messenger links #850

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4 changes: 2 additions & 2 deletions src/docs/developers/bridge/messaging.md
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Expand Up @@ -121,7 +121,7 @@ contract MyOtherContract {
```

::: tip Using the messenger contracts
Our messenger contracts, the [`L1CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts/contracts/L1/messaging/L1CrossDomainMessenger.sol) and [`L2CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts/contracts/L2/messaging/L2CrossDomainMessenger.sol), always come pre-deployed to each of our networks.
Our messenger contracts, the [`L1CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L1/L1CrossDomainMessenger.sol) and [`L2CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L2/L2CrossDomainMessenger.sol), always come pre-deployed to each of our networks.
You can find the exact addresses of these contracts on our various deployments [inside of the Optimism monorepo](https://github.com/ethereum-optimism/optimism/tree/develop/packages/contracts/deployments).
:::

Expand Down Expand Up @@ -179,7 +179,7 @@ modifier onlyOwner() {
### For L1 ⇒ L2 transactions

The majority of the cost of an L1 to L2 transaction comes from sending a transaction on Ethereum.
You send a transaction to the [`L1CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts/contracts/L1/messaging/L1CrossDomainMessenger.sol)
You send a transaction to the [`L1CrossDomainMessenger`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts-bedrock/src/L1/L1CrossDomainMessenger.sol)
contract, which then sends a call to the [`CanonicalTransactionChain`](https://github.com/ethereum-optimism/optimism/blob/develop/packages/contracts/contracts/L1/rollup/CanonicalTransactionChain.sol).
This cost is ultimately determined by gas prices on Ethereum when you're sending the cross-chain transaction.

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