---
title: "What’s New in Re.Pack 5.1: Live Overview"
description: "Explore runtime hooks, prefetching MF remotes, and more in Re.Pack 5.1. Join us live or watch the replay."
url: https://www.callstack.com/events/whats-new-in-re-pack-5-1-live-overview
updated: 2026-10-24T08:39:22.855Z
---

# What’s New in Re.Pack 5.1: Live Overview

Explore runtime hooks, prefetching MF remotes, and more in Re.Pack 5.1. Join us live or watch the replay.

_Livestream · 5/20/2025, 6 PM [CET] · Online · Recording: 01:12:31 · Category: Super Apps_

Organizer: Callstack

Speakers: Jakub Romańczyk (Software Engineer @ Callstack), Mike Grabowski (CEO & Founder @ Callstack)

[Watch the recording](https://www.youtube.com/watch?v=gDvJx_KJ07U)

[Re.Pack just got an update](https://www.callstack.com/blog/new-in-re-pack-5-1), and we’re breaking it down live with the engineer behind it, Jakub Romańczyk.

Version 5.1 introduces runtime hooks for script loading customization, support for prefetching remote modules with Module Federation 2, and experimental persistent cache that speeds up hot startups by over 85%. It also ensures full compatibility with React Native 0.79 and improves module resolution with support for Package Exports.

In this livestream, Callstack’s CTO Mike Grabowski and Re.Pack maintainer Jakub Romańczyk walk you through these upgrades with real examples and use cases, from customizing OTA workflows to debugging faster with persistent caching and tighter module control.

You’ll also get a look at the evolving Re.Pack and mobile Module Federation ecosystem, including new community tools and upcoming improvements.

Watch now to learn how to make the most of Re.Pack 5.1, whether you’re tuning in live or catching the recording, you’ll walk away with practical insights to improve the product you’re working on.