Know the moment your stack gets an update.
patchletter is a free update radar for sysadmins. You check off the software and hardware you run: browsers, hypervisors, firewalls, NAS, line-of-business apps. We watch vendor release sources daily, 1286 products in the catalogue today. When a new version turns up there, you get one email.
doctl1.180.01.181.09 Oct
JTL-Wawi2.2.02.2.110 Oct
YouTrack2026.2.195622026.2.195809 Oct
pnpm12.11.112.11.29 Oct
How it works
- 1
Check them off
Pick the tools in your environment. No account, your selection stays in the browser.
- 2
Confirm your email
One click on the magic link confirms your address and activates the subscriptions. There is no password.
- 3
Get updates
Instantly per release or bundled as a daily/weekly digest, each with a link to the release notes.
From: patchletter <mail@notify.patchletter.com>
3 updates: FortiOS, Proxmox VE, 7-Zip
- FortiOS7.6.3 → 7.6.4SecurityRelease notes →
- Proxmox VE9.1 → 9.2Release notes →
- 7-Zip26.01 → 26.02Release notes →
Manage subscriptions · Unsubscribe in one click
This is what the daily digest looks like. If there are no releases, no email goes out. The security label is part of Pro.
Frequently asked questions
What is patchletter?
A free update radar for sysadmins. You check off the tools in your environment and get an email the moment a vendor ships an update. Where there is data, the product page also shows the support/EOL cycle (endoflife.date) and the actively exploited vulnerabilities from the CISA KEV catalogue — free to read, no account; delivery by email is part of Pro. We check daily, and we run data-minimal and tracking-free on our own server in Nuremberg (EU).
What does patchletter cost?
Update emails are free — no limit on tools, no limit on emails. Security is Pro: the security label on a release, EOL warnings, and CVE/KEV and BSI advisories by email. What Pro costs is on the pricing page.
Where does the version data come from?
From official vendor APIs, release feeds, package sources (winget, Homebrew) and public release-notes pages — checked daily, source visible per product.
Do I have to install anything?
No. No agent, no scanner — you tell us what you run, we tell you when there are updates.
What happens to my email address?
We use it solely for the update emails. You confirm it in a double opt-in, we store it in our database in Nuremberg (EU), data-minimal and tracking-free. You can unsubscribe in one click and delete your account anytime.
My tool isn't in the catalog?
Suggest it via “Suggest a tool” — suggestions with many votes get added first, usually within a week.