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2026

Mulan Permissive Software License, Version 1

Also known as Mulan PSL v1, Mulan Permissive Software License, Version 1, MulanPSL-1.0.

Commercial use
allowed
Share alike
not required
Attribution
required (keep the copyright and license notices)
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Write this as a license text (needs an account) DALICC reads the model above and writes what it permits, requires and prohibits in plain English. Without an account, the Text download above writes the model out from the vocabulary.

Canonical URI https://dalicc.net/licenselibrary/MulanPSL-1.0

Permissions

  • Change license by library convention Library convention: family rule 15: Permissive records permit relicensing. Replacing the license of the work, or of an adaptation, with another license, or changing its terms.

    Duties

    • Use a compliant license by library convention Library convention: family rule 15: Permissive records permit relicensing. Choosing a replacement license that stays compliant with the terms of the original license.
  • Charge distribution fee from the text Charging a fee for the act of providing a copy of the work to someone else.
  • Commercial use from the text Using the work to generate income, directly or indirectly, for example by selling it or by using it in advertising.
  • Derivative works from the text Distributing an adaptation of the work and making it available to the public.
  • Derive from the text The text says: "You may distribute the Software in any medium with or without modification, whether in source or executable forms, provided that you provide recipients with a copy of this License and retain copyright, patent, trademark and disclaimer statements in the Software." Creating a new work from the work, such as a translation, adaptation or arrangement of it or of a part of it.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
  • Display from the text Showing the work to the public without making a copy the viewer keeps.
  • Distribute from the text The text says: "You may distribute the Software in any medium with or without modification, whether in source or executable forms, provided that you provide recipients with a copy of this License and retain copyright, patent, trademark and disclaimer statements in the Software." Providing copies of the work to the public or to anyone else.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
  • Modified works from the text Distributing a modified version of the work that does not amount to a new, derivative work.
  • Modify from the text The text says: "You may distribute the Software in any medium with or without modification, whether in source or executable forms, provided that you provide recipients with a copy of this License and retain copyright, patent, trademark and disclaimer statements in the Software." Altering the work, for example by updating it, without creating a new work; an alteration that creates a new work is Derive.

    Duties

    • Attribution from the text Giving credit to the copyright holders or authors of the work, in the form the licensor asks for.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
  • Patent grant from the text Granting a license under the patent claims that a contributor holds and that the contribution necessarily infringes.
  • Present from the text Performing the work in public, including by broadcast or other communication to the public.
  • Reproduce from the text Making copies of the work in any form.

Prohibitions

  • Promote from the text Not permitted: Promote. The text says: "No trademark license is granted to use the trade names, trademarks, service marks, or product names of Contributor, except as required to fulfill notice requirements in section 4." Using the name or trademarks of the licensor or of contributors to endorse or promote a product.

License-wide duties

This license states no duties that apply to the work as a whole.

What applies by default

The statements above are the library's reading of this license: each is marked with the sentence it rests on, or as a library convention where the text is not explicit. The statements below are the ones the DALICC reasoner supplies for acts the license says nothing about, from the default rules of the dependency graph it reasons with. Each one names the legal source it rests on. None of it is in the record.

No default rule of that graph reaches this license: it speaks about every act the rules are about.

Further terms

These are the things the license says about itself beyond the acts it permits, forbids and requires: when it ends, how long there is to put a breach right, which law governs it, and so on. A term that comes from the DALICC vocabulary links to its definition.

Patent license ends if you sue
Yes. Not a ban on suing: a patent claim over the work ends the patent license, or the whole license, as the text provides.

Clauses

Warranty disclaimer

The Software and Contribution in it are provided without warranties of any kind, either express or implied.

Limitation of liability

In no event shall any Contributor or copyright holder be liable to you for any damages, including, but not limited to any direct, or indirect, special or consequential damages arising from your use or inability to use the Software or the Contribution in it, no matter how it’s caused or based on which legal theory, even if advised of the possibility of such damages.

Additional clauses

Subject to the terms and conditions of this License, each Contributor hereby grants to you a perpetual, worldwide, royalty-free, non-exclusive, irrevocable (except for revocation under this Section) patent license to make, have made, use, offer for sale, sell, import or otherwise transfer its Contribution where such patent license is only limited to the patent claims owned or controlled by such Contributor now or in future which will be necessarily infringed by its Contribution alone, or by combination of the Contribution with the Software to which the Contribution was contributed, excluding of any patent claims solely be infringed by your or others’ modification or other combinations.

Info

Target asset types
Software
Region / jurisdiction
Worldwide
Validity
Perpetual
Source
https://spdx.org/licenses/MulanPSL-1.0.html
Legal code
http://license.coscl.org.cn/MulanPSL
This description is published under
Creative Commons Attribution 4.0 International
SPDX identifier
MulanPSL-1.0 on the SPDX license list
DALICC identifier
MulanPSL-1.0

This record is published under CC BY 4.0. Credit it as: DALICC License Library, DALICC - Verein zur Förderung der Rechtssicherheit in der Datenbewirtschaftung, https://dalicc.net, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). The license it describes belongs to its publisher.

Use this license

Everything below is generated from this record. Replace the example address with the address of your own work.

JSON sidecar 

{
  "license-uri": "https://dalicc.net/licenselibrary/MulanPSL-1.0",
  "license-title": "Mulan Permissive Software License, Version 1",
  "spdx-id": "MulanPSL-1.0",
  "attribution": "Copyright (c) [year] [copyright holder]",
  "asset": null,
  "generated-by": "DALICC"
}

RDF, Turtle 

@prefix cc: <http://creativecommons.org/ns#> .

<https://example.org/my-work>
    cc:license <https://dalicc.net/licenselibrary/MulanPSL-1.0> .

RDF, JSON-LD 

{
  "@context": {
    "cc": "http://creativecommons.org/ns#"
  },
  "@id": "https://example.org/my-work",
  "cc:license": {
    "@id": "https://dalicc.net/licenselibrary/MulanPSL-1.0"
  }
}

HTML attribution 

<p>This work is licensed under <a href="https://dalicc.net/licenselibrary/MulanPSL-1.0" rel="license">Mulan Permissive Software License, Version 1</a>.</p>

This license asks for attribution, so the credit line is part of it.

Badge DALICC badge for Mulan Permissive Software License, Version 1

Markdown 

[![License: Mulan Permissive Software License, Version 1](https://dalicc.net/license-library/MulanPSL-1.0/badge.svg)](https://dalicc.net/license-library/MulanPSL-1.0)

HTML 

<a href="https://dalicc.net/license-library/MulanPSL-1.0"><img src="https://dalicc.net/license-library/MulanPSL-1.0/badge.svg" alt="License: Mulan Permissive Software License, Version 1"></a>

Review

Written from the license text by
Giray Havur
Written on
2026-09-22
Second review
not yet done
Record changed since this review
yes (version 2, 2026-09-24)
Findings
12 recorded, 10 applied to the record, 0 proposed

Models the first version of the Mulan permissive licence, published in August 2019 in Chinese and in English. It grants copyright and patent licences, asks that a copy of the licence and the copyright, patent, trademark and disclaimer statements travel with every distribution, grants no trademark licence and ends the patent licence on patent litigation. The record follows MulanPSL-2.0.

12 findings

  • info Rubric 1 spdx:licenseId applied

    File name, record identifier, SPDX identifier and IRI local name are all MulanPSL-1.0. The library already holds MulanPSL-2.0, the next version of the same text.

  • info Rubric 2 odrl:target applied

    One odrl:AssetCollection of dct:type dcmitype:Software, following MulanPSL-2.0. The text defines the Software as the program and related documents.

  • major Rubric 3 odrl:permission applied

    Section 1 reads "each Contributor hereby grants to you a perpetual, worldwide, royalty-free, non-exclusive, irrevocable copyright license to reproduce, use, modify, or distribute its Contribution, with modification or not". The record permits reproduce, distribute, modify, derive, display, present, commercial use, derivative works, modified works and the distribution fee, the set MulanPSL-2.0 carries; display and present rest on the word "use" in the grant.

  • major Rubric 3 odrl:permission applied

    dalicc:patentGrant is permitted for section 2 and dalicc:ChangeLicense is permitted with the dalicc:compliantLicense duty, because section 4 keeps conditions that must survive a relicensing and nothing bars one.

  • major Rubric 4 odrl:prohibition applied

    dalicc:promote is prohibited for section 3, "No trademark license is granted to use the trade names, trademarks, service marks, or product names of Contributor". dalicc:patentRetaliationTermination is prohibited for the sentence in section 2 that ends the patent licence on the date patent litigation is filed.

  • major Rubric 5 odrl:duty applied

    cc:Attribution and cc:Notice hang off odrl:distribute, odrl:modify and odrl:derive for section 4, "provided that you provide recipients with a copy of this License and retain copyright, patent, trademark and disclaimer statements in the Software". The duty reaches source and executable form, because the sentence says "in any medium ... whether in source or executable forms".

  • minor Rubric 6 dalicc:WarrantyDisclaimer applied

    Section 5 runs the warranty and the liability together under one heading. They are split into dalicc:WarrantyDisclaimer and dalicc:LiabilityLimitation, as on MulanPSL-2.0.

  • minor Rubric 6 dalicc:additionalClauses applied

    The text uses typographic apostrophes (others' modification, how it's caused) and one full-width closing parenthesis after the word "assignee". All three are quoted as the publisher wrote them. No long dash appears in the text, so none had to be replaced.

  • info Rubric 7 cc:jurisdiction applied

    The licence is published in China and its canonical copy is served there, but the grant is "perpetual, worldwide" and the text names no governing law, so cc:jurisdiction is dalicc:worldwide and dalicc:validityType is dalicc:perpetual.

  • info Rubric 8 dct:language applied

    No dct:language. The licence is published in Chinese and in English in one document, and every clause this record quotes is quoted from the English half, so the record is not a record of a text in another language. MulanPSL-2.0 makes the same choice.

  • info Rubric 9 record none

    The consistency check of app.services.composer against the dependency graph dg_default returned an empty conflict list.

  • info Rubric 10 record none

    Read against licensedata/licenses/MulanPSL-2.0.ttl the statements are the same. The version 1 text has no sentence saying that the Chinese version prevails over the English one, so that clause is absent here; the version 2 record quotes it. The clause texts are also split into separate literals here, where the version 2 record keeps them in one.

Report an issue The review record as JSON The review checks the model against the license text. It is not legal advice.

History

This license model has 2 versions. Version 2 is the one served today; every earlier version keeps its own address, so a conclusion drawn from one of them can still be checked against it.

  1. Version 2 current2026-09-24 Giray Havur

    The changes since version 1 recorded which sentence of the text each statement rests on and named the license the record itself is published under.

    View JSON-LD Turtle RDF/XML

    6 changes

    • changed permission dalicc:ChangeLicense with duties [dalicc:compliantLicense]

      was permission dalicc:ChangeLicense with duties [dalicc:compliantLicense]

      Manual edit The statement is marked as a library convention, family rule 15: Permissive records permit relicensing: the text does not state it in as many words. Its duty dalicc:compliantLicense is marked as a library convention, family rule 15: Permissive records permit relicensing.

    • changed permission odrl:derive with duties [cc:Attribution, cc:Notice]

      was permission odrl:derive with duties [cc:Attribution, cc:Notice]

      Manual edit The statement now quotes the sentence of the licence text it rests on: "You may distribute the Software in any medium with or without modification, whether in source or executable forms, provided that you provide recipients with a copy of this License and retain copyright, patent, trademark and disclaimer statements in the Software."

    • changed permission odrl:distribute with duties [cc:Attribution, cc:Notice]

      was permission odrl:distribute with duties [cc:Attribution, cc:Notice]

      Manual edit The statement now quotes the sentence of the licence text it rests on: "You may distribute the Software in any medium with or without modification, whether in source or executable forms, provided that you provide recipients with a copy of this License and retain copyright, patent, trademark and disclaimer statements in the Software."

    • changed permission odrl:modify with duties [cc:Attribution, cc:Notice]

      was permission odrl:modify with duties [cc:Attribution, cc:Notice]

      Manual edit The statement now quotes the sentence of the licence text it rests on: "You may distribute the Software in any medium with or without modification, whether in source or executable forms, provided that you provide recipients with a copy of this License and retain copyright, patent, trademark and disclaimer statements in the Software."

    • changed prohibition dalicc:promote

      was prohibition dalicc:promote

      Manual edit The statement now quotes the sentence of the licence text it rests on: "No trademark license is granted to use the trade names, trademarks, service marks, or product names of Contributor, except as required to fulfill notice requirements in section 4."

    • added dct:license <https://creativecommons.org/licenses/by/4.0/>

      Manual edit Every record is published under CC BY 4.0. cc:license names the record DALICC keeps of that licence; dct:license now names it by the address Creative Commons publishes it at, so that a consumer matching the canonical IRI finds it.

  2. Version 1

    Created from the license text on 2026-09-22 (Permissive variants).

    View JSON-LD Turtle RDF/XML

Every change names the reason behind it: a finding of the content review, one of its library-wide decisions, the metadata that review wrote onto every record, or a hand edit. None of it is legal advice.

Nothing on this page is legal advice. What a license means is decided by its text; ask a legal advisor before you rely on it.