feat: increase max gas limit on zeronet

zeronet/2026-05-22-increase-max-gas-limit/.env

@@ -0,0 +1,15 @@
+# Required: Git commit hash for https://github.com/base/contracts
+# This is the source of the SystemConfig implementation to patch and deploy.
+BASE_CONTRACTS_COMMIT=1baa168c9db6a946ae47863ea07295bedb3599a6
+
+# Patch to apply to the base-contracts SystemConfig to increase MAX_GAS_LIMIT
+BASE_CONTRACTS_PATCH=patch/max-gas-limit.patch
+
+# Re-exported for task simulation UI (signer-tool invokes forge directly and does not
+# pick up variables coming from the Makefile's `-include ../.env`).
+PROXY_ADMIN_OWNER=0x3d59999977e0896ee1f8783bb8251df16fb483e9
+L1_PROXY_ADMIN=0x44f00318360258744a0daa957c2d15080a473469
+SYSTEM_CONFIG=0xcc7c76564bea74a963a0bd75e0bc9bce3ff0ea80
+
+# Enable state diff recording for validation
+RECORD_STATE_DIFF=true

zeronet/2026-05-22-increase-max-gas-limit/FACILITATOR.md

@@ -0,0 +1,87 @@
+# Facilitator Guide
+
+Guide for facilitators managing this task.
+
+## Deployment prerequisites
+
+Before collecting signatures, complete the EOA-authorized phase:
+
+```bash
+cd contract-deployments
+git pull
+cd zeronet/2026-05-22-increase-max-gas-limit
+make deps
+make deploy
+```
+
+`make deploy` runs `DeploySystemConfigScript`:
+
+- deploys a new `SystemConfig` implementation with `MAX_GAS_LIMIT = 2,000,000,000` and version `3.13.2+max-gas-limit-2000M`
+- writes `systemConfig` to `addresses.json`
+
+## Generate validation files
+
+```bash
+cd contract-deployments
+git pull
+cd zeronet/2026-05-22-increase-max-gas-limit
+make deps
+make gen-validation-cb
+make gen-validation-sc
+```
+
+This produces:
+
+- `validations/base-signer.json`
+- `validations/security-council-signer.json`
+
+## Execute the transaction
+
+### 1. Update repo
+
+```bash
+cd contract-deployments
+git pull
+cd zeronet/2026-05-22-increase-max-gas-limit
+make deps
+```
+
+### 2. Collect signatures for `CB_MULTISIG`
+
+Concatenate all signatures and export as the `SIGNATURES` environment variable:
+
+```bash
+export SIGNATURES="[SIGNATURE1][SIGNATURE2]..."
+```
+
+Then run:
+
+```bash
+SIGNATURES=$SIGNATURES make approve-cb
+```
+
+### 3. Collect signatures for `BASE_SECURITY_COUNCIL`
+
+Concatenate all signatures and export as the `SIGNATURES` environment variable:
+
+```bash
+export SIGNATURES="[SIGNATURE1][SIGNATURE2]..."
+```
+
+Then run:
+
+```bash
+SIGNATURES=$SIGNATURES make approve-sc
+```
+
+### 4. Execute upgrade
+
+```bash
+make execute
+```
+
+Post-checks enforced by script:
+
+- `SystemConfig(impl).version()` equals `"3.13.2+max-gas-limit-2000M"`
+- `SystemConfig(impl).maximumGasLimit()` equals `2,000,000,000`
+- SystemConfig proxy implementation slot points to the new implementation

zeronet/2026-05-22-increase-max-gas-limit/Makefile

@@ -0,0 +1,87 @@
+include ../../Makefile
+include ../../Multisig.mk
+include ../.env
+include .env
+
+SIGNER_TOOL_PATH = ../../signer-tool
+RPC_URL = $(L1_RPC_URL)
+export PROXY_ADMIN_OWNER
+export L1_PROXY_ADMIN
+export SYSTEM_CONFIG
+
+UPGRADE_SCRIPT_NAME = script/UpgradeSystemConfig.s.sol:UpgradeSystemConfigScript
+DEPLOY_SCRIPT_NAME = script/DeploySystemConfig.s.sol:DeploySystemConfigScript
+
+CB_SENDER = $(shell cast call $(CB_MULTISIG) "getOwners()(address[])" --rpc-url $(L1_RPC_URL) | tr -d '[]' | cut -d',' -f1)
+SC_SENDER = $(shell cast call $(BASE_SECURITY_COUNCIL) "getOwners()(address[])" --rpc-url $(L1_RPC_URL) | tr -d '[]' | cut -d',' -f1)
+
+# Validate required configuration before execution
+.PHONY: validate-config
+validate-config:
+	@test -n "$(BASE_CONTRACTS_COMMIT)" -a "$(BASE_CONTRACTS_COMMIT)" != "TODO" || (echo "BASE_CONTRACTS_COMMIT required" && exit 1)
+	@test -n "$(BASE_CONTRACTS_PATCH)" || (echo "BASE_CONTRACTS_PATCH required" && exit 1)
+	@test -n "$(PROXY_ADMIN_OWNER)" || (echo "PROXY_ADMIN_OWNER required" && exit 1)
+	@test -n "$(L1_PROXY_ADMIN)" || (echo "L1_PROXY_ADMIN required" && exit 1)
+	@test -n "$(SYSTEM_CONFIG)" || (echo "SYSTEM_CONFIG required" && exit 1)
+	@echo "Configuration validated successfully"
+
+# Override deps to also apply the patch to base-contracts after checkout
+.PHONY: deps
+deps: clean-lib forge-deps clone-oz-upgradeable checkout-base-contracts-commit apply-patch
+
+.PHONY: apply-patch
+apply-patch:
+	cd lib/contracts && git init -q && git add -A && git apply ../../$(BASE_CONTRACTS_PATCH)
+
+##
+# Deployment (EOA) — run by facilitator before collecting signatures
+##
+.PHONY: deploy
+deploy:
+	forge script --rpc-url $(L1_RPC_URL) $(DEPLOY_SCRIPT_NAME) \
+		--ledger --hd-paths $(LEDGER_HD_PATH) --verify --broadcast
+
+#
+#    ┌─────────────────────────────────────────────┐       ┌─────────────────────────────────────────────┐
+#    │                 CB Multisig                  │       │            Base Security Council             │
+#    │  0x856611ed7e07d83243b15e93f6321f2df6865852 │       │  0xC4c0aD998B5DfA4CF4B298970F21b9015a5eE7bA │
+#    └─────────────────────┬───────────────────────┘       └─────────────────────┬───────────────────────┘
+#                          │                                                     │
+#                          └─────────────────┬───────────────────────────────────┘
+#                                            ▼
+#                             ┌─────────────────────────────────────────────┐
+#                             │              ProxyAdminOwner                │
+#                             │  0x3d59999977e0896ee1f8783bb8251df16fb483e9 │
+#                             └─────────────────────────────────────────────┘
+
+##
+# Validation file generation
+##
+.PHONY: gen-validation-cb
+gen-validation-cb: validate-config deps-signer-tool
+	$(call GEN_VALIDATION,$(UPGRADE_SCRIPT_NAME),$(CB_MULTISIG),$(CB_SENDER),base-signer.json,PROXY_ADMIN_OWNER=$(PROXY_ADMIN_OWNER) L1_PROXY_ADMIN=$(L1_PROXY_ADMIN) SYSTEM_CONFIG=$(SYSTEM_CONFIG))
+
+.PHONY: gen-validation-sc
+gen-validation-sc: validate-config deps-signer-tool
+	$(call GEN_VALIDATION,$(UPGRADE_SCRIPT_NAME),$(BASE_SECURITY_COUNCIL),$(SC_SENDER),security-council-signer.json,PROXY_ADMIN_OWNER=$(PROXY_ADMIN_OWNER) L1_PROXY_ADMIN=$(L1_PROXY_ADMIN) SYSTEM_CONFIG=$(SYSTEM_CONFIG))
+
+##
+# Approve
+##
+.PHONY: approve-cb
+approve-cb: SCRIPT_NAME := $(UPGRADE_SCRIPT_NAME)
+approve-cb:
+	$(call MULTISIG_APPROVE,$(CB_MULTISIG),$(SIGNATURES))
+
+.PHONY: approve-sc
+approve-sc: SCRIPT_NAME := $(UPGRADE_SCRIPT_NAME)
+approve-sc:
+	$(call MULTISIG_APPROVE,$(BASE_SECURITY_COUNCIL),$(SIGNATURES))
+
+##
+# Execute
+##
+.PHONY: execute
+execute: SCRIPT_NAME := $(UPGRADE_SCRIPT_NAME)
+execute:
+	$(call MULTISIG_EXECUTE,0x)

zeronet/2026-05-22-increase-max-gas-limit/README.md

@@ -0,0 +1,49 @@
+# Upgrade SystemConfig to Increase Maximum Gas Limit
+
+Status: [EXECUTED](https://hoodi.etherscan.io/tx/0xc4e9606618cb2ca302f2c7efa1adc6fd7e3ae708817774fcb0480d626b830a88)
+
+[Deploy SystemConfig impl](https://hoodi.etherscan.io/tx/0xc619806dad6b6a7b1c88135ac82a4d4dd31c8bee00cf6abc8a4d38ca500ebe61) ([artifact](./records/DeploySystemConfig.s.sol/560048/run-1779471994.json))
+[Execution](https://hoodi.etherscan.io/tx/0xc4e9606618cb2ca302f2c7efa1adc6fd7e3ae708817774fcb0480d626b830a88) ([artifact](./records/UpgradeSystemConfig.s.sol/560048/run-1779719150.json))
+
+## Description
+
+This task upgrades the SystemConfig implementation on Zeronet to increase `MAX_GAS_LIMIT` from 500,000,000 (500M) to 2,000,000,000 (2B).
+
+The new max of 2B provides headroom for future gas limit increases.
+
+This task contains two scripts:
+1. `DeploySystemConfigScript` -- Deploys a new SystemConfig implementation with the patched `MAX_GAS_LIMIT`. This is run by the facilitator before signing.
+2. `UpgradeSystemConfigScript` -- Upgrades the SystemConfig proxy to point to the new implementation via the ProxyAdmin owner Safe.
+
+No storage changes occur since only the `MAX_GAS_LIMIT` constant and `version()` string are modified.
+
+**NOTE:** Signers should not need to run the `DeploySystemConfigScript` script as it will be run beforehand by the facilitator. The rest of this document focuses on using the `UpgradeSystemConfigScript` script.
+
+## Procedure
+
+### Sign task
+
+#### 1. Update repo
+
+```bash
+cd contract-deployments
+git pull
+```
+
+#### 2. Run signing tool
+
+```bash
+cd contract-deployments
+make sign-task
+```
+
+#### 3. Open the UI at [http://localhost:3000](http://localhost:3000)
+
+- Select the correct signer role from the list of available users to sign.
+- After completion, close the signer tool with `Ctrl + C`.
+
+#### 4. Send signature to facilitator
+
+Copy the signature output and send it to the designated facilitator via the agreed communication channel.
+
+For facilitator instructions, see `FACILITATOR.md`.

zeronet/2026-05-22-increase-max-gas-limit/addresses.json

@@ -0,0 +1,3 @@
+{
+  "systemConfig": "0x652c5049a877Ac02BB963546B3d5ea2004f3AbE2"
+}

zeronet/2026-05-22-increase-max-gas-limit/foundry.toml

@@ -0,0 +1,25 @@
+[profile.default]
+src = 'src'
+out = 'out'
+libs = ['lib']
+broadcast = 'records'
+fs_permissions = [{ access = "read-write", path = "./" }]
+optimizer = true
+optimizer_runs = 999999
+solc_version = "0.8.15"
+evm_version = "shanghai"
+via-ir = false
+remappings = [
+    '@eth-optimism-bedrock/=lib/optimism/packages/contracts-bedrock/',
+    '@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts',
+    '@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts',
+    '@rari-capital/solmate/=lib/solmate/',
+    '@base-contracts/=lib/contracts/',
+    '@solady/=lib/solady/src/',
+    '@lib-keccak/=lib/lib-keccak/contracts/lib/',
+]
+
+[lint]
+lint_on_build = false
+
+# See more config options https://github.com/foundry-rs/foundry/tree/master/config

zeronet/2026-05-22-increase-max-gas-limit/patch/max-gas-limit.patch

@@ -0,0 +1,25 @@
+diff --git a/src/L1/SystemConfig.sol b/src/L1/SystemConfig.sol
+index 1234567..abcdefg 100644
+--- a/src/L1/SystemConfig.sol
++++ b/src/L1/SystemConfig.sol
+@@ -97,7 +97,7 @@ contract SystemConfig is OwnableUpgradeable, ISemver, IOptimismPortalInterop {
+     /// @notice The maximum gas limit that can be set for L2 blocks. This limit is used to enforce that the blocks
+     ///         on L2 are not too large to process and prove. Over time, this value can be increased as various
+     ///         optimizations and improvements are made to the system at large.
+-    uint64 internal constant MAX_GAS_LIMIT = 500_000_000;
++    uint64 internal constant MAX_GAS_LIMIT = 2_000_000_000;
+
+     /// @notice Fixed L2 gas overhead. Used as part of the L2 fee calculation.
+     ///         Deprecated since the Ecotone network upgrade
+@@ -172,9 +172,9 @@ contract SystemConfig is OwnableUpgradeable, ISemver, IOptimismPortalInterop {
+     error SystemConfig_InvalidFeatureState();
+
+     /// @notice Semantic version.
+-    /// @custom:semver 3.13.2
++    /// @custom:semver 3.13.2+max-gas-limit-2000M
+     function version() public pure virtual returns (string memory) {
+-        return "3.13.2";
++        return "3.13.2+max-gas-limit-2000M";
+     }
+
+     /// @notice Constructs the SystemConfig contract.

zeronet/2026-05-22-increase-max-gas-limit/records/UpgradeSystemConfig.s.sol/560048/approve-latest.json

@@ -0,0 +1,90 @@
+{
+  "transactions": [
+    {
+      "hash": "0x935dcdf277424427d4b3b2ea42d7de602a21a2ed4eec38c736424020b3e91312",
+      "transactionType": "CALL",
+      "contractName": null,
+      "contractAddress": "0xc4c0ad998b5dfa4cf4b298970f21b9015a5ee7ba",
+      "function": "execTransaction(address,uint256,bytes,uint8,uint256,uint256,uint256,address,address,bytes)",
+      "arguments": [
+        "0x3d59999977e0896ee1f8783bB8251DF16fb483E9",
+        "0",
+        "0xd4d9bdcd15740867bc374df8c2c72a6435810c5a6d8d890118d35de63a4a1578feb2b32b",
+        "0",
+        "0",
+        "0",
+        "0",
+        "0x0000000000000000000000000000000000000000",
+        "0x0000000000000000000000000000000000000000",
+        "0x31da2648114a6957ee56dec23c974ab14c37af861f50ec84b5e7de3cdd367e2f35caee8cecb8548541aa332089f2de231af0e6c68fbde8ac3774b95b7313327c1b"
+      ],
+      "transaction": {
+        "from": "0xe167153964d4ba0819e1ad56172f3329cd5a0263",
+        "to": "0xc4c0ad998b5dfa4cf4b298970f21b9015a5ee7ba",
+        "gas": "0x1b752",
+        "value": "0x0",
+        "input": "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",
+        "nonce": "0x3",
+        "chainId": "0x88bb0"
+      },
+      "additionalContracts": [],
+      "isFixedGasLimit": false
+    }
+  ],
+  "receipts": [
+    {
+      "status": "0x1",
+      "cumulativeGasUsed": "0x3330ffb",
+      "logs": [
+        {
+          "address": "0x3d59999977e0896ee1f8783bb8251df16fb483e9",
+          "topics": [
+            "0xf2a0eb156472d1440255b0d7c1e19cc07115d1051fe605b0dce69acfec884d9c",
+            "0x15740867bc374df8c2c72a6435810c5a6d8d890118d35de63a4a1578feb2b32b",
+            "0x000000000000000000000000c4c0ad998b5dfa4cf4b298970f21b9015a5ee7ba"
+          ],
+          "data": "0x",
+          "blockHash": "0x7eef18108047422c07854a000f653b0f37e360e05da44919a205776bca451420",
+          "blockNumber": "0x2c0aca",
+          "blockTimestamp": "0x6a145b5c",
+          "transactionHash": "0x935dcdf277424427d4b3b2ea42d7de602a21a2ed4eec38c736424020b3e91312",
+          "transactionIndex": "0x2c",
+          "logIndex": "0x1f",
+          "removed": false
+        },
+        {
+          "address": "0xc4c0ad998b5dfa4cf4b298970f21b9015a5ee7ba",
+          "topics": [
+            "0x442e715f626346e8c54381002da614f62bee8d27386535b2521ec8540898556e",
+            "0xb955d5c984611776917bf25b7caacdef2620ad77d30e90171ff3ece995295a72"
+          ],
+          "data": "0x0000000000000000000000000000000000000000000000000000000000000000",
+          "blockHash": "0x7eef18108047422c07854a000f653b0f37e360e05da44919a205776bca451420",
+          "blockNumber": "0x2c0aca",
+          "blockTimestamp": "0x6a145b5c",
+          "transactionHash": "0x935dcdf277424427d4b3b2ea42d7de602a21a2ed4eec38c736424020b3e91312",
+          "transactionIndex": "0x2c",
+          "logIndex": "0x20",
+          "removed": false
+        }
+      ],
+      "logsBloom": "0x00000000400000000000000000000000000000000000000000000000040000000001000000000000000000000000000000040000000000100000000002000000010000000000000000000000000000000000000800000000000000001000000008000000400000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000004000000200000000080000000000200000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000100000020000000000",
+      "type": "0x2",
+      "transactionHash": "0x935dcdf277424427d4b3b2ea42d7de602a21a2ed4eec38c736424020b3e91312",
+      "transactionIndex": "0x2c",
+      "blockHash": "0x7eef18108047422c07854a000f653b0f37e360e05da44919a205776bca451420",
+      "blockNumber": "0x2c0aca",
+      "gasUsed": "0x13e10",
+      "effectiveGasPrice": "0x393f476d",
+      "from": "0xe167153964d4ba0819e1ad56172f3329cd5a0263",
+      "to": "0xc4c0ad998b5dfa4cf4b298970f21b9015a5ee7ba",
+      "contractAddress": null
+    }
+  ],
+  "libraries": [],
+  "pending": [],
+  "returns": {},
+  "timestamp": 1779719011,
+  "chain": 560048,
+  "commit": "087ea90"
+}