# n8n n8n@2.45.4 — Release & Upgrade Intelligence
- **Product:** n8n (https://n8n.io)
- **Version:** n8n@2.45.4
- **Released:** Oct 26, 2026
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/n8n/updates/n8n-2.45.4/

## Executive Summary (TL;DR)
n8n n8n@2.45.4. Source highlight: **core:** Recreate removed n8n-sandbox sandboxes and rerun workspace setup (#41919) (11e279a)

## Breaking Changes & Deprecations
- editor:** Point migration report docs link to the v3 breaking changes page ([#42003](https://github.com/n8n-io/n8n/issues/42003)) ([b617384](https://github.com/n8n-io/n8n/commit/b617384eeaf73f98683f19606013d91e6b8335c1))

## New Features
- **editor:** Filter migration report workflows by project (#41949) (2946963)
- **editor:** Refactor N8nBreadcrumbs and callers (#41911) (81d4309)
- Implements new taxonomy experiment for sales-and-marketing responders (#41936) (24e1504)

## Bug Fixes
- **core:** Recreate removed n8n-sandbox sandboxes and rerun workspace setup (#41919) (11e279a)
- **core:** Start sub-workflow error workflow when a pre-run check fails (#41977) (9595142)
- **editor:** Match navigation plus button hover styling (#41910) (471c006)
- **editor:** Point migration report docs link to the v3 breaking changes page (#42003) (b617384)
- **Email Trigger (IMAP) Node:** Back off reconnects when the server drops each new connection (#41926) (618064c)
- **Microsoft SharePoint Node:** Fix the column mapper 403 and empty items in Map Automatically (#41907) (79bbff4)