Licence for already obtained versions cannot be revoked
Catalog row in Vendor License Rules · Cited
- Kind
- Term
- Statement
- FAQ A.9.17: the PuTTY Licence grants permission to use, distribute and copy the software to which it applies, and once granted that permission cannot simply be revoked; if future releases were closed-source, the last open release could still be copied and forked under the current licence. The FAQ gives no assurance about the licence of future versions. (FAQ undated; as published on 2026-09-27)
- Applies when
- Assessing the risk of future licence changes or a closed-source future release.
- Applies to
- Any PuTTY release already obtained
- Aliases
- perpetual; irrevocable; future licence change