Thank you for your permission and for the many reasons in favor of the
current license.
I will submit the license to the Open Source Initiative (OSI) as soon as
possible.
Best regards
Chris
On Tue, 3 Feb 2026, Chris via curl-library wrote:
I would like to have the curl license listed with the Open Source
Initiative (OSI) (opensource.org). After going through the approval
process, the curl license will be considered an OSI Approved License.
The OSI will thus confirm that it is an open source license.
Excellent! I mean we all knew it already, but getting it publicly
confirmed like that feels good and appropriate. Thanks for doing this.
The first point is permission to have the curl license officially
listed at Open Source Initiative (OSI). Can someone grant me official
permission?
I suppose that should be me, and yes you have my permission to have it
listed by the Open Source Initiative. I think that is in everyone's
best interest.
I would like to address the second point here based on the feedback
from my initial contact with the OSI. The curl project itself refers
to the SPDX listing, where curl is listed as a standalone license.
Yes, since SPDX added it as its own license identifier that seems to
be the most accurate SPDX name to use.
I would like to ask whether there are plans to change the license to
a full MIT license.
There are no such plans and I don't think anyone has asked us to in
the last twenty years.
- we have used this license for a long time by now
- it does not seem to hamper adoption or be a problem to users nor
contributors
- changing the license is work we can avoid
- changing the license causes ripple effects everywhere, which I
think we
should only trigger if it is important
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