PIP-144: Upgrade to Pigeon v2.3.5 to upgrade arbitrum-geth that fixes failed relays after Arbitrum sequencer upgrade

Governance
1

Proposal: PIP-144: Upgrade to Pigeon v2.3.5 to upgrade arbitrum-geth that fixes failed relays after Arbitrum sequencer upgrade

Status: Proposed

Author(s): @BoweryKing

Type: Software Upgrade

Discussions-to: Governance - Paloma

Created: 06/27/2025

Summary

This is a software upgrade proposal for Pigeon. We request that the network upgrade the minimum Pigeon version of the tumbler network to Pigeon v2.3.5 to update arbitrum-geth which fixes failed relays after Arbitrum sequencer upgrade.

Abstract

This is a software upgrade proposal for Pigeon. We request that the network upgrade the protocol of the tumbler network to Pigeon v2.3.5 o update arbitrum-geth which fixes failed relays after Arbitrum sequencer upgrade.

Motivation

On June 26, 2025, all relays on Paloma halted. An investigation into the cause determined that the Arbitrum sequencer had upgraded to arbitrum-go-etherum client and Paloma validators were using an outdated version of arbitrum-go-ethereum client.

The motivations for this Paloma upgrade include the following:

Prior to upgrade

  1. An upgrade proposal that must be submitted by anyone running a node on the network. This proposal should have the correct block height.
  2. Please use the following tool to calculate the approximate Block Height: Huginn - PalomaChain Release Window Planner
  3. This upgrade proposal requires 10 GRAIN or 10000000ugrain for deposit for voting.
  4. IMPORTANT: The upgrade height is the block height where the chain requires the new pigeon version to be used.
  5. The Target block height for chain upgrade for this proposal is tentative 40218785 or approximately 6/30/2025, 00:20 UTC See (Block height: 40218785)
palomad tx gov submit-legacy-proposal valset propose-pigeon-requirements \
v2.3.5 \
--target-block-height 40218785 \
--title "PIP-144: Upgrade to Pigeon v2.3.5" \
--summary "Set the minimum required version to v2.3.5 to upgrade arbitrum-geth that fixes failed relays after Arbitrum sequencer upgrade" \
--deposit 10000000ugrain \
--gas auto \
--node=<your node> \
--chain-id tumbler \
--from <Your Paloma Address> \
-y

How to Vote on Proposals 207

**Paloma Client:**
palomad tx gov vote 207 yes \
--chain-id tumbler \
--from <Your Paloma Address> \
--node <Your node> \
-y

**Paloma LightNode Users of V2 Only:**

1. Windows
docker run --rm --pull=always -ti -v $env:USERPROFILE\paloma-lightnode\.paloma:/root/.paloma palomachain/lightnode-client:v2 vote-proposal 207 yes

1. Mac, Linux & VPS
sh $HOME/Downloads/setup.sh vote-proposal 207 yes

About Paloma

Paloma wants to be the fastest relay chain in the world with the most decentralized network of validators that can attest to any transaction with the fastest possible execution. Paloma aims to make it easy for developers to control smart contracts on any Solana, Ethereum L1, L2, and L3 chain.

To learn more about Paloma, please visit https://palomachain.com

To follow the project on Github, please star the project GitHub - palomachain/paloma: The fast blockchain messenger protocol

To participate in the community, please join the Paloma Discord: Paloma