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Re: Official Listing of the curl License at Open Source Initiative (OSI)
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From: Daniel Stenberg via curl-library <curl-library_at_lists.haxx.se>
Date: Tue, 3 Feb 2026 23:43:16 +0100 (CET)
On Tue, 3 Feb 2026, Christoph Röth 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
Date: Tue, 3 Feb 2026 23:43:16 +0100 (CET)
On Tue, 3 Feb 2026, Christoph Röth 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
-- / daniel.haxx.se || https://rock-solid.curl.dev
-- Unsubscribe: https://lists.haxx.se/mailman/listinfo/curl-library Etiquette: https://curl.se/mail/etiquette.htmlReceived on 2026-02-03