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docs: update-to-nitro-3.11.1 #3431

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a41e472
Updating globalVars
pete-vielhaber Jul 1, 2026
b1c686e
yarn generate
pete-vielhaber Jul 1, 2026
8ee1669
Merge branch 'master' into nitro-3.11.1
anegg0 Jul 1, 2026
e05c54b
Updating Nitro support
pete-vielhaber Jul 1, 2026
154e462
Merge branch 'nitro-3.11.1' of github.com:OffchainLabs/arbitrum-docs …
pete-vielhaber Jul 1, 2026
184fe06
Updated support policy
pete-vielhaber Jul 1, 2026
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2 changes: 1 addition & 1 deletion docs/arbitrum-essentials/how-to-estimate-gas.mdx
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Expand Up @@ -23,7 +23,7 @@ Multiplying the value from `eth_estimateGas` by the child chain gas price gives

Alternatively, call `NodeInterface.gasEstimateComponents()` and use the first result (`gasEstimate`) as your gas limit. Multiply by the third result (`baseFee`) to get the total cost. For background on `NodeInterface` itself, see the [NodeInterface overview](/arbitrum-essentials/nodeinterface/overview.mdx).

Note that when working with [parent to child chain messages](/arbitrum-essentials/bridging/cross-chain-messaging.mdx) (also known as [retryable tickets](/how-arbitrum-works/deep-dives/l1-to-l2-messaging.mdx)), you can use the function [`ParentToChildMessageGasEstimator.estimateAll()`](https://github.com/OffchainLabs/arbitrum-sdk/blob/main/packages/sdk/src/lib/message/ParentToChildMessageGasEstimator.ts) of the Arbitrum SDK or [`NodeInterface.estimateRetryableTicket()`](https://github.com/OffchainLabs/@@nitroRepositorySlug=nitro@@/blob/@@nitroVersionTag=v3.11.0@@/nodeInterface/NodeInterface.go#L120) to get all the gas information needed to send a successful transaction.
Note that when working with [parent to child chain messages](/arbitrum-essentials/bridging/cross-chain-messaging.mdx) (also known as [retryable tickets](/how-arbitrum-works/deep-dives/l1-to-l2-messaging.mdx)), you can use the function [`ParentToChildMessageGasEstimator.estimateAll()`](https://github.com/OffchainLabs/arbitrum-sdk/blob/main/packages/sdk/src/lib/message/ParentToChildMessageGasEstimator.ts) of the Arbitrum SDK or [`NodeInterface.estimateRetryableTicket()`](https://github.com/OffchainLabs/@@nitroRepositorySlug=nitro@@/blob/@@nitroVersionTag=v3.11.1@@/nodeInterface/NodeInterface.go#L120) to get all the gas information needed to send a successful transaction.

## The fee formula

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2 changes: 1 addition & 1 deletion docs/arbitrum-essentials/nodeinterface/overview.mdx
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Expand Up @@ -8,6 +8,6 @@ displayed_sidebar: arbitrumEssentialsSidebar

<!-- todo: remove this doc, redirect to existing ref doc -->

The Arbitrum Nitro software includes a special `NodeInterface` contract available at address `0xc8` that is only accessible via [RPCs](/arbitrum-essentials/arbitrum-vs-ethereum/rpc-methods.mdx) (it's not actually deployed onchain and thus can't be called by smart contracts). The way it works is that the node uses Geth's [`InterceptRPCMessage`](https://github.com/OffchainLabs/go-ethereum/blob/@@goEthereumCommit=0f618f330b8d78457524839997f0041d86f3cd1a@@/internal/ethapi/api.go#L1034) hook to detect messages sent to the address `0xc8`, and swaps out the message it's handling before deriving a transaction from it.
The Arbitrum Nitro software includes a special `NodeInterface` contract available at address `0xc8` that is only accessible via [RPCs](/arbitrum-essentials/arbitrum-vs-ethereum/rpc-methods.mdx) (it's not actually deployed onchain and thus can't be called by smart contracts). The way it works is that the node uses Geth's [`InterceptRPCMessage`](https://github.com/OffchainLabs/go-ethereum/blob/@@goEthereumCommit=f3a977ddf30b138da2fe673ac5cbff2bc6dd4c88@@/internal/ethapi/api.go#L1034) hook to detect messages sent to the address `0xc8`, and swaps out the message it's handling before deriving a transaction from it.

The [reference page](/arbitrum-essentials/nodeinterface/reference.mdx) contains information about all methods available in the `NodeInterface`.
58 changes: 29 additions & 29 deletions docs/arbitrum-essentials/precompiles/reference.mdx
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28 changes: 14 additions & 14 deletions ...or-devs/dev-tools-and-resources/partials/precompile-tables/_ArbAddressTable.mdx
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Expand Up @@ -13,12 +13,12 @@
<code>addressExists(address addr)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAddressTable.sol#L17" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAddressTable.sol#L17" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAddressTable.go#L17" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAddressTable.go#L17" target="_blank">
Implementation
</a>
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<code>compress(address addr)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAddressTable.sol#L26" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAddressTable.sol#L26" target="_blank">
Interface
</a>
</td>
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<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAddressTable.go#L22" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAddressTable.go#L22" target="_blank">
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<code>decompress(bytes calldata buf, uint256 offset)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAddressTable.sol#L36" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAddressTable.sol#L36" target="_blank">
Interface
</a>
</td>
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<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAddressTable.go#L27" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAddressTable.go#L27" target="_blank">
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Expand All @@ -61,12 +61,12 @@
<code>lookup(address addr)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAddressTable.sol#L45" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAddressTable.sol#L45" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAddressTable.go#L40" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAddressTable.go#L40" target="_blank">
Implementation
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Expand All @@ -77,12 +77,12 @@
<code>lookupIndex(uint256 index)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAddressTable.sol#L53" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAddressTable.sol#L53" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAddressTable.go#L52" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAddressTable.go#L52" target="_blank">
Implementation
</a>
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Expand All @@ -93,12 +93,12 @@
<code>register(address addr)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAddressTable.sol#L62" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAddressTable.sol#L62" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAddressTable.go#L67" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAddressTable.go#L67" target="_blank">
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</a>
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Expand All @@ -109,12 +109,12 @@
<code>size()</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAddressTable.sol#L69" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAddressTable.sol#L69" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAddressTable.go#L73" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAddressTable.go#L73" target="_blank">
Implementation
</a>
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32 changes: 16 additions & 16 deletions .../for-devs/dev-tools-and-resources/partials/precompile-tables/_ArbAggregator.mdx
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⚠️<code>getPreferredAggregator(address addr)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAggregator.sol#L14" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAggregator.sol#L14" target="_blank">
Interface
</a>
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<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAggregator.go#L25" target="_blank">
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⚠️<code>getDefaultAggregator()</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAggregator.sol#L20" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAggregator.sol#L20" target="_blank">
Interface
</a>
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<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAggregator.go#L32" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAggregator.go#L32" target="_blank">
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<code>getBatchPosters()</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAggregator.sol#L24" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAggregator.sol#L24" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAggregator.go#L37" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAggregator.go#L37" target="_blank">
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<code>addBatchPoster(address newBatchPoster)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAggregator.sol#L29" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAggregator.sol#L29" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAggregator.go#L42" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAggregator.go#L42" target="_blank">
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<code>getFeeCollector(address batchPoster)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAggregator.sol#L36" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAggregator.sol#L36" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAggregator.go#L65" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAggregator.go#L65" target="_blank">
Implementation
</a>
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Expand All @@ -93,12 +93,12 @@
<code>setFeeCollector(address batchPoster, address newFeeCollector)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAggregator.sol#L44" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAggregator.sol#L44" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAggregator.go#L74" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAggregator.go#L74" target="_blank">
Implementation
</a>
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⚠️<code>getTxBaseFee(address aggregator)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAggregator.sol#L49" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAggregator.sol#L49" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAggregator.go#L98" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAggregator.go#L98" target="_blank">
Implementation
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⚠️<code>setTxBaseFee(address aggregator, uint256 feeInL1Gas)</code>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/9056310e554d04829bc590d4ba7e17d40d0a9635/ArbAggregator.sol#L59" target="_blank">
<a href="https://github.com/OffchainLabs/nitro-precompile-interfaces/blob/7e88c8cc53c2e96201a23c638f1536557b9cb68b/ArbAggregator.sol#L59" target="_blank">
Interface
</a>
</td>
<td>
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.0/precompiles/ArbAggregator.go#L106" target="_blank">
<a href="https://github.com/OffchainLabs/nitro/blob/v3.11.1/precompiles/ArbAggregator.go#L106" target="_blank">
Implementation
</a>
</td>
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