The current version of PuTTY is 0.85 (as of 17/08/2026). patchletter checks the official source daily and emails you new releases.
BSI security advisories
Advisories the German BSI (CERT-Bund) published for this product. Whether your version is affected is stated in the advisory itself.
- SSH Protokoll: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-W-2023-3174 · 9 Oct
- SCP in mehreren Produkten: Mehrere Schwachstellen
WID-SEC-W-2023-1995 · 5 Oct
- PuTTY: Mehrere Schwachstellen
WID-SEC-W-2026-1673 · 26 May
PuTTY at a glance
PuTTY is a long-standing, free SSH/telnet client for Windows — a staple in the admin toolbox. The project ships updates in an unhurried cadence, occasionally with important cryptographic or key-handling fixes.
For admins the attention point is key handling and stored sessions: use key-based authentication, protect private keys (a past advisory concerned key generation), and keep the client current so it uses sound algorithms. New versions drop obsolete crypto, which can lock out very old servers — plan for that. Source it from the official site (fake PuTTY builds appear in malware campaigns). PuTTY's companions (pscp, plink, Pageant) share its updates. For a richer, tabbed experience, tools like MobaXterm or Tabby build on similar foundations; PuTTY remains the minimal, reliable default.
Version history & changelog · as detected by patchletter
| Version | Channel | Date | Notes |
|---|---|---|---|
| 0.85 | STABLE | 17/08/2026 | Release notes → |
| 0.84 | STABLE | 08/07/2026 | Release notes → |
Frequently asked questions
- What is the latest version of PuTTY?
- PuTTY 0.85, released 17/08/2026. patchletter checks the vendor's official source daily for new releases.
- Where can I find the PuTTY release notes?
- The version history above links to the vendor's official release notes where the vendor publishes them. patchletter deliberately stores no vendor full texts.
- How do I get notified about new PuTTY updates?
- Tick PuTTY off in the catalogue and leave your address. From then on new versions go out by email — one at a time, or bundled in the daily or weekly digest.
An email as soon as a new PuTTY version ships
We reconcile the vendor source daily. When a new version appears, it lands in your inbox right away or bundled as a digest. The update email is free and ends with one click. Alerts about vulnerabilities and end of support are part of patchletter Pro.
Embed this badge
The badge shows the current PuTTY version and keeps it up to date. Anyone may embed it, no account needed.
[](https://patchletter.com/en/software/putty)https://patchletter.com/badge/putty.svgAlso available: ?v=eol (end of support) and ?v=cve (actively exploited).
