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Certain older Cisco, Juniper, or VyOS QEMU/KVM images run more reliably on older versions of the emulator.
If you are running an older version and wish to update it to a more recent (but perhaps not the latest) stable release, follow these steps via the CLI:
Are you trying to run a specific legacy network topology that requires an older build? What is the exact you are currently running?
To download and update older versions of EVE-NG (Emulated Virtual Environment Next Generation), it is essential to understand why users seek legacy releases and how the update ( upd ) process operates within the EVE-NG ecosystem. Why Download an EVE-NG Old Version? eveng old version download upd
Downloading software from third-party forums or unverified cloud drives is a massive security risk. Malicious actors frequently bundle malware, keyloggers, or crypto-miners into fake network simulation software packages.
: Use EVE's backup manager or manually copy lab directories from /opt/unetlab/labs/
According to official documentation: "SSH to your EVE CLI as root user and issue following commands: apt update, apt upgrade [answer y if required]" Certain older Cisco, Juniper, or VyOS QEMU/KVM images
EVE-NG older releases provide compatibility with legacy labs and appliances, allow reproducible research/teaching environments, and can reduce immediate upgrade effort. However, older builds lack security patches, new features, and vendor-tested images; they may be incompatible with newer OS or appliance images.
EVE-NG Version Management: Downloading and Updating Guide EVE-NG (Emulated Virtual Environment - Next Generation) is a critical tool for network engineers to build virtual labs with real multivendor images. Whether you are managing an or looking to download and update to the latest release (Version 6.2 as of early 2026), following the correct procedure is essential to prevent data loss or system failure. 1. Downloading EVE-NG Versions
: Move backed-up labs and images to the new installation To download and update older versions of EVE-NG
: Never upgrade the underlying Ubuntu OS version (e.g., from 22.04 to 24.04) even if prompted in the CLI. This will break your EVE-NG installation. Pre-Upgrade Prep : Stop all running labs and nodes. Check your current version using dpkg -l eve-ng .
| Version | ISO Filename | SHA256 | | :--- | :--- | :--- | | 2.0.3-112 | EVE-ng-Community-v2.0.3-112.iso | 4a8f9c... (Check forums) | | 3.2.1-12 | EVE-ng-Community-v3.2.1-12.iso | b23e1a... | | 4.0.1-20 | EVE-ng-Community-v4.0.1-20.iso | f7d890... |
If you are looking to download a specific version, are you focusing on the or Professional Edition ? Knowing this, along with your current version , can help me provide more specific instructions.
Downgrading is not officially recommended by the EVE‑NG team, but it is possible in certain scenarios.