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2026

bzip2 and libbzip2 License v1.0.6

Also known as bzip2, bzip2 and libbzip2 License v1.0.6, bzip2-1.0.6.

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/bzip2-1.0.6

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 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.
    • Modification notice from the text Marking a changed work as changed, saying how it differs from the original and keeping earlier notices of change.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
    • Rename from the text Giving a modified or derived work a name that tells it apart from the original.
  • Display from the text Showing the work to the public without making a copy the viewer keeps.
  • Distribute from the text 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 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.
    • Modification notice from the text Marking a changed work as changed, saying how it differs from the original and keeping earlier notices of change.
    • Notice from the text Notice: keeping the license and copyright notices with every copy.
    • Rename from the text Giving a modified or derived work a name that tells it apart from the original.
  • 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: "The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission." 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.

Clauses

Warranty disclaimer

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

Limitation of liability

IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Additional clauses

2. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.

Info

Target asset types
Software
Region / jurisdiction
Worldwide
Validity
Perpetual
Source
https://spdx.org/licenses/bzip2-1.0.6.html
Legal code
https://spdx.org/licenses/bzip2-1.0.6.html
This description is published under
Creative Commons Attribution 4.0 International
SPDX identifier
bzip2-1.0.6 on the SPDX license list
DALICC identifier
bzip2-1.0.6

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/bzip2-1.0.6",
  "license-title": "bzip2 and libbzip2 License v1.0.6",
  "spdx-id": "bzip2-1.0.6",
  "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/bzip2-1.0.6> .

RDF, JSON-LD 

{
  "@context": {
    "cc": "http://creativecommons.org/ns#"
  },
  "@id": "https://example.org/my-work",
  "cc:license": {
    "@id": "https://dalicc.net/licenselibrary/bzip2-1.0.6"
  }
}

HTML attribution 

<p>This work is licensed under <a href="https://dalicc.net/licenselibrary/bzip2-1.0.6" rel="license">bzip2 and libbzip2 License v1.0.6</a>.</p>

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

Badge DALICC badge for bzip2 and libbzip2 License v1.0.6

Markdown 

[![License: bzip2 and libbzip2 License v1.0.6](https://dalicc.net/license-library/bzip2-1.0.6/badge.svg)](https://dalicc.net/license-library/bzip2-1.0.6)

HTML 

<a href="https://dalicc.net/license-library/bzip2-1.0.6"><img src="https://dalicc.net/license-library/bzip2-1.0.6/badge.svg" alt="License: bzip2 and libbzip2 License v1.0.6"></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, 9 applied to the record, 0 proposed

Models the licence of bzip2 and libbzip2 as of version 1.0.6. It opens with the BSD redistribution sentence and the BSD source-retention condition, takes its second and third conditions from the zlib licence, and closes with the endorsement bar of the three-clause BSD text.

12 findings

  • info Rubric 1 spdx:licenseId applied

    File name, record identifier, SPDX identifier and IRI local name are all bzip2-1.0.6. SPDX deprecated bzip2-1.0.5 and keeps this identifier for the text of version 1.0.6.

  • info Rubric 2 odrl:target applied

    One odrl:AssetCollection of dct:type dcmitype:Software. The text names the program, the library and all documentation.

  • major Rubric 3 odrl:permission applied

    The grant reads "Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met". The record permits reproduce, distribute, modify, derive, display, present, commercial use, derivative works, modified works and the distribution fee.

  • major Rubric 3 odrl:permission applied

    dalicc:ChangeLicense is permitted with the dalicc:compliantLicense duty: the retention condition has to survive a relicensing and nothing bars one.

  • major Rubric 4 odrl:prohibition applied

    dalicc:promote is prohibited for condition 4, "The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission".

  • major Rubric 5 odrl:duty applied

    cc:Attribution and cc:Notice hang off odrl:distribute, odrl:modify and odrl:derive for condition 1, "Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer". dalicc:modificationNotice and dalicc:rename hang off odrl:modify and odrl:derive for condition 3, "Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software", the pair TheZlibLibpngLicense uses for that sentence.

  • minor Rubric 5 odrl:duty applied

    Condition 2 asks for no acknowledgment: it says one "would be appreciated but is not required". It adds no duty and is quoted instead.

  • minor Rubric 6 dalicc:WarrantyDisclaimer applied

    The single disclaimer paragraph carries two clauses. The record splits it at the sentence boundary: the warranty sentence goes to dalicc:WarrantyDisclaimer and the liability sentence to dalicc:LiabilityLimitation, both verbatim. This follows BSD-1-Clause, which split the same paragraph on 2026-09-15.

  • info Rubric 7 cc:jurisdiction applied

    The text names no legal system and sets no term, so cc:jurisdiction is dalicc:worldwide and dalicc:validityType is dalicc:perpetual.

  • info Rubric 8 dalicc:additionalClauses none

    No clause of this text needs a term the vocabulary does not have.

  • 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

    The record stands between licensedata/licenses/BSD-3-Clause.ttl and licensedata/licenses/TheZlibLibpngLicense.ttl: it has the BSD notice and attribution duties and the BSD endorsement bar, and the zlib modification-notice and rename duties. It has no binary-form retention condition, which the three-clause BSD text does have.

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

    3 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 prohibition dalicc:promote

      was prohibition dalicc:promote

      Manual edit The statement now quotes the sentence of the licence text it rests on: "The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission."

    • 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.