PIP-146: Paloma Mainnet Upgrade to v2.4.13 to Fix Duplicate Submitted Skyway Batches

Governance
1

Proposal: PIP-146: Paloma Mainnet Upgrade to v2.4.13 to Fix Duplicate Submitted Skyway Batches

Status: Proposed

Author(s): @BoweryKing

Type: Software Upgrade

Discussions-to: Governance - Paloma

Created: 07/07/2025

Simple Summary

The Paloma protocol now limits attestations to execute in sequence vs. in parallel to avoid duplicate batches being submitted.

Abstract

This release includes the following change:

  • Paloma will halt Skyway batch creation and submission during Skwyay batch attestations

Motivation

This upgrade is to fix resubmitted batches that were already attested by the validator set.

Specification Overview

The specification for this release includes

Technical Specification

Paloma

Paloma v2.4.13 upgrades include the following:
Release PR Release v2.4.13 · palomachain/paloma · GitHub

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 is an expedited proposal and requires 1000 GRAIN or 1000000000ugrain for deposit for voting.
  4. IMPORTANT: The upgrade height is the block height where the chain halts and requires the upgrade. Allow at least one (1) day AFTER voting end time and upgrade-height for 2/3 of the network to have downloaded the new binary and prepped for the switch over to avoid/minimize downtime of the Paloma chain.
  5. The Target block height for chain halt for this proposal is 40772317 or approximately 07/08/2025 19:45 UTC. See (Block height: 40772317)

Proposal Vote Command for CLI

palomad tx gov submit-proposal ./pip-146.json \
--gas auto \
--node=<Your Paloma node> \
--chain-id tumbler \
--from <Your Paloma Address>

pip-146.json

{
    "messages": [
     {
      "@type": "/cosmos.upgrade.v1beta1.MsgSoftwareUpgrade",
      "authority": "paloma10d07y265gmmuvt4z0w9aw880jnsr700jz87xyk",
      "plan": {
       "name": "v2.4.13",
       "height": "40772317",
       "info": "",
       "upgraded_client_state": null
      }
     }
    ],
    "metadata": "ipfs://Qma7gRSoCbW76Xhxii1kmmSJLQPefeHeQkMLghCzkcmziD",
    "deposit": "1000000000ugrain",
    "title": "PIP-146: Paloma  Mainnet Upgrade to v2.4.13 to Fix Duplicate Submitted Skyway Batches",
    "summary": "This Paloma v2.4.13 release fixes duplicate submitted skyway batches", 
    "expedited": true
}

pip-146_metadata.json

{
 "title": "PIP-146: Paloma  Mainnet Upgrade to v2.4.13 to Fix Duplicate Submitted Skyway Batches",
 "authors": [
  "BoweryKing"
 ],
 "summary": "PIP-146: Paloma  Mainnet Upgrade to v2.4.13 to Fix Duplicate Submitted Skyway Batches."
 "details": "\"'{\\\"binaries\\\":{\\\"linux/amd64\\\":\\\"https://github.com/palomachain/paloma/releases/download/v2.4.13/paloma_Linux_x86_64.tar.gz\\\"}}'\"",
 "proposal_forum_url": "",
 "vote_option_context": "Vote YES to support running this binary to upgrade the Paloma Mainnest Network"
}

How to Vote on Proposal 209 with CLI

palomad tx gov vote 209 yes \
--chain-id tumbler \
--from <Your Paloma Address> \
--node <Your node> \
-y

How to Vote on Proposal 209 with Paloma LightNodes

# Mac & Linux
sh ~/Downloads/setup.sh vote-proposal 209 yes

# **Windows**
docker run --rm --pull=always -ti -v $env:USERPROFILE\\paloma-lightnode:/root/lightnode palomachain/lightnode-client:v2 vote-proposal 209 yes

How to check if 2/3 of the network is online after the vote is complete

curl -s localhost:26657/consensus_state | jq -r ".result.round_state.height_vote_set[0].prevotes_bit_array"

—> needs to return ≥ ~0.67 for the chain to start up again

To see which validators are online with the new binary, use GitHub - blockpane/pvtop: top-like tui for watching validator pre-votes on Tendermint chains

Rationale

Ending the risk of duplicate batches submitted and delivered will mean faster onboarding and a more reliable token trading experience.

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