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v0.13.0 (MONAD_NINE)

warning

These instructions are only applicable to testnet. This can be ignored for mainnet.

Please do not proceed until Monad Foundation provides notice.

Hard Fork Release

This release activates MONAD_NINE at timestamps (all nodes must upgrade before activation):

  • 1773153000 - 2026-03-10 14:30GMT (testnet)
  • 1773930600 - 2026-03-19 14:30GMT (mainnet)

Instructions for node operators

No configuration changes required

This release does not require any node.toml or systemctl override changes. It is a drop-in upgrade from v0.12.7.

1. SSH into the node as root user

2. Upgrade monad package

sudo apt update && sudo apt install --reinstall monad=0.13.0 -y --allow-downgrades --allow-change-held-packages

3. Restart the services and verify

sudo systemctl restart monad-bft monad-execution monad-rpc
sudo systemctl status monad-bft monad-execution monad-rpc --no-pager -l

Expected output: All services should show Active: active (running)

4. Verify the correct version is running

monad-rpc --version

Expected output:

monad-rpc {"commit":"0a9cbb8227207a7b33ddf5caf7bd796e855df99f","tag":"v0.13.0","branch":"","modified":true}

Patch notes

Please refer to the public changelog for v0.13.0.

Key changes in MONAD_NINE

  • MIP-3: Linear memory implementation
  • MIP-4: Reserve balance precompile
  • MIP-5: Osaka fork (CLZ opcode - EIP-7939)