Creating or modifying upgrade.json

Hands-on exercise: Append upgrade entries to re-enable the allowlists and set your wallet as admin.

Objectives

By the end of this exercise, you will be able to:

Append new precompileUpgrades entries (without modifying old ones).
Re-enable txAllowListConfig and contractDeployerAllowListConfig.
Set your wallet address as adminAddresses for both precompiles.

Prerequisites

Before starting this exercise, ensure you have:

Completed the de-activation section and confirmed both precompiles are currently inactive.
Access to the chain config directory:
- ~/.avalanchego/configs/chains/<YOUR_BLOCKCHAIN_ID>/
Your wallet address (EVM 0x...) that you want to set as the admin.

Instructions

Step 1: Compute new (future) activation timestamps

Inside the validator container, compute two future timestamps. These must be:

In the future relative to chain head
Greater than any timestamps you already used in upgrade.json

NOW=$(date +%s)
T1=$((NOW + 600))
T2=$((NOW + 601))
echo $T1
echo $T2

Step 2: Append re-activation entries (do not edit old upgrades)

Go to your chain config directory and open upgrade.json:

cd ~/.avalanchego/configs/chains/<YOUR_BLOCKCHAIN_ID>
cat upgrade.json

Your file should already contain the two disable entries you added earlier. Keep them exactly as-is, and append two new entries that re-enable the precompiles with adminAddresses:

{
  "precompileUpgrades": [
    {
      "txAllowListConfig": {
        "blockTimestamp": 1700000000,
        "disable": true
      }
    },
    {
      "contractDeployerAllowListConfig": {
        "blockTimestamp": 1700000001,
        "disable": true
      }
    },
    {
      "txAllowListConfig": {
        "blockTimestamp": 1700001000,
        "adminAddresses": ["0x...YOUR_WALLET_ADDRESS..."]
      }
    },
    {
      "contractDeployerAllowListConfig": {
        "blockTimestamp": 1700001001,
        "adminAddresses": ["0x...YOUR_WALLET_ADDRESS..."]
      }
    }
  ]
}