lego

lego 5.5.2

Let's Encrypt/ACME client and library written in Go

  • By Sebastian Erhart
  • Open Source
  • Updated Sep 23, 2026
Download for Windows

About lego

Let's Encrypt/ACME client and library written in Go

What's new in 5.5.2

lego is an independent, free, and open-source project, if you value it, consider supporting it! ❤️
Everybody thinks that the others will donate, but in the end, nobody does.
So if you think that lego is worth it, please consider donating.
For key updates, see the changelog.
Changelog

Full release notes »

Technical details

PublisherSebastian Erhart
Version5.5.2
Release date2026-09-23
LicenseMIT
Installer typezip
Architecturex86, x64, arm64
Package IDGoACME.lego

Links & install command

Install lego from the command line with Windows Package Manager (winget):

winget install --id=GoACME.lego -e

acmeacme-clientcertificatednsletsencryptrfc8555rfc8737rfc8738securitytls

Older versions

  • 5.5.1
  • 5.5.0
  • 5.4.1
  • 5.4.0
  • 5.3.1
  • 5.3.0
  • 5.2.2
  • 5.2.1
  • 5.2.0