# Initia Chain Upgrade Proposal #4: Mempool Overhaul & Storage Optimization

**URL:** <https://forum.initia.xyz/t/initia-chain-upgrade-proposal-4-mempool-overhaul-storage-optimization/433>\
**Category:** L1 Chain Upgrade\
**Created:** [April 7, 2026, 4:20am UTC](https://forum.initia.xyz/t/initia-chain-upgrade-proposal-4-mempool-overhaul-storage-optimization/433 "2026-04-07T04:20:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![manuel](https://avatars.discourse-cdn.com/v4/letter/m/67e7ee/32.png) [@manuel](https://forum.initia.xyz/u/manuel)\
**Post date:** [April 7, 2026, 4:20am UTC](https://forum.initia.xyz/t/initia-chain-upgrade-proposal-4-mempool-overhaul-storage-optimization/433/1 "2026-04-07T04:20:41Z")

</div>

The mainnet upgrade for **Initia Chain Upgrade Proposal** #4: **Mempool Overhaul & Storage Optimization** is scheduled as follows.

This upgrade has been validated on testnet (`initiation-2`) and is now moving to mainnet (`interwoven-1`).

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## Overview

This proposal introduces a major upgrade to Initia’s core infrastructure, focusing on:

- Mempool architecture overhaul

- Storage optimization

- Gas Price Token Support

- Bug fixes and reliability enhancements

The key change in **v1.4.5** is the transition from a dual mempool system to a **single app-side mempool with a proxied CometBFT mempool** , simplifying transaction flow and improving consistency.

Additionally, the integration of **memiavl and versiondb** significantly improves read/write performance and reduces disk I/O, leading to better node performance.

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## Key Improvements

### Mempool & Transaction Processing

- Unified app-side mempool with proxied CometBFT mempool

- Support for explicitly queued transactions

- App-side event channel with queued event handling

- Improved CheckTx error handling

- Fixes for data races and mempool cleanup

### Storage

- Integration of memiavl and versiondb for faster state access and reduced disk usage

### Gas Price Token Support

- Expands gas price payment support to multiple whitelisted assets, including tokens routed through supported DEX mechanisms such as CLAMM, rather than only Balancer-supported assets

### Object Deployment

- Support for minitia domain separator

- Fixes for simulation routing

### Bug Fixes

- Correct escrow accounting during upgrades

- Amino codec registration fixes

- Edge case fixes in mempool state handling

### Documentation

- Swagger updates including rate-limit endpoints

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## Upgrade Details

- **Release Version** : v1.4.5

- **Chain ID** : `interwoven-1`

- **Upgrade Height** : 16,105,000

- **Estimated Time** : April 21, 2026, at 6:00 AM UTC

- **GitHub Release** : [https://github.com/initia-labs/initia/releases/tag/v1.4.5](https://github.com/initia-labs/initia/releases/tag/v1.4.5)

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## Timeline

- April 8, 2026 – Forum post

- April 9, 2026 – Proposal submission

- April 21, 2026 – Target upgrade date

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## Upgrade Instructions

```auto
# Build from source
git checkout v1.4.5
make install

# Locate the binary to proper location
mkdir -p ~/.initia/cosmovisor/upgrades/v1.4.5/bin
cp $(which initiad) ~/.initia/cosmovisor/upgrades/v1.4.5/bin/

```

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## Governance

- **YES** – Support the upgrade

- **NO** – Oppose the upgrade

- **NO WITH VETO** – Strong objection (spam, harmful, or governance violation)

- **ABSTAIN** – No position

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**Full Changelog** : [https://github.com/initia-labs/initia/compare/v1.3.1…v1.4.5](https://github.com/initia-labs/initia/compare/v1.3.1...v1.4.5)