66 - [ Contributors] ( #contributors )
77- [ Third Party Licenses - Development] ( #third-party-licenses---development )
88- [ Third Party Licenses - Runtime] ( #third-party-licenses---runtime )
9- - [ 7-Zip @ 24.09 ] ( #7-zip--2409 )
9+ - [ 7-Zip @ 25.01 ] ( #7-zip--2501 )
1010 - [ AlphaFS @ 2.1.3] ( #alphafs--213 )
1111 - [ Checksum @ 0.2.0] ( #checksum--020 )
1212 - [ log4net @ 2.0.12] ( #log4net--2012 )
@@ -70,7 +70,7 @@ We would like to credit other super sweet tools/frameworks that aid in the devel
7070Chocolatey CLI (choco) uses a number of 3rd-party components.
7171Their details are below.
7272
73- - [ 7-Zip @ 24.09 ] ( #7-zip--2409 )
73+ - [ 7-Zip @ 25.01 ] ( #7-zip--2501 )
7474- [ AlphaFS @ 2.1.3] ( #alphafs--213 )
7575- [ Checksum @ 0.2.0] ( #checksum--020 )
7676- [ log4net @ 2.0.12] ( #log4net--2012 )
@@ -81,7 +81,7 @@ Their details are below.
8181- [ Shim Generator (shimgen) @ 1.0.0] ( #shim-generator-shimgen--100 )
8282- [ SimpleInjector @ 2.8.3] ( #simpleinjector--283 )
8383
84- ### 7-Zip @ 24.09
84+ ### 7-Zip @ 25.01
8585
8686Chocolatey uses [ 7-Zip] ( http://www.7-zip.org/ ) for uncompressing archives.
8787[ License terms] ( http://www.7-zip.org/license.txt ) :
@@ -92,15 +92,16 @@ Chocolatey uses [7-Zip](http://www.7-zip.org/) for uncompressing archives.
9292 License for use and distribution
9393 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9494
95- 7-Zip Copyright (C) 1999-2023 Igor Pavlov.
95+ 7-Zip Copyright (C) 1999-2025 Igor Pavlov.
9696
9797 The licenses for files are:
9898
99- 1) 7z.dll:
99+ - 7z.dll:
100100 - The "GNU LGPL" as main license for most of the code
101101 - The "GNU LGPL" with "unRAR license restriction" for some code
102102 - The "BSD 3-clause License" for some code
103- 2) All other files: the "GNU LGPL".
103+ - The "BSD 2-clause License" for some code
104+ - All other files: the "GNU LGPL".
104105
105106 Redistributions in binary form must reproduce related license information from this file.
106107
@@ -109,8 +110,8 @@ Chocolatey uses [7-Zip](http://www.7-zip.org/) for uncompressing archives.
109110 organization. You don't need to register or pay for 7-Zip.
110111
111112
112- GNU LGPL information
113- --------------------
113+ GNU LGPL information
114+ --------------------
114115
115116 This library is free software; you can redistribute it and/or
116117 modify it under the terms of the GNU Lesser General Public
@@ -128,55 +129,110 @@ Chocolatey uses [7-Zip](http://www.7-zip.org/) for uncompressing archives.
128129
129130
130131
131- BSD 3-clause License
132- --------------------
132+ BSD 3-clause License in 7-Zip code
133+ -------------- --------------------
133134
134- The "BSD 3-clause License" is used for the code in 7z.dll that implements LZFSE data decompression.
135- That code was derived from the code in the "LZFSE compression library" developed by Apple Inc,
136- that also uses the "BSD 3-clause License":
135+ The "BSD 3-clause License" is used for the following code in 7z.dll
136+ 1) LZFSE data decompression.
137+ That code was derived from the code in the "LZFSE compression library" developed by Apple Inc,
138+ that also uses the "BSD 3-clause License".
139+ 2) ZSTD data decompression.
140+ that code was developed using original zstd decoder code as reference code.
141+ The original zstd decoder code was developed by Facebook Inc,
142+ that also uses the "BSD 3-clause License".
137143
138- ----
139- Copyright (c) 2015-2016, Apple Inc. All rights reserved.
144+ Copyright (c) 2015-2016, Apple Inc. All rights reserved.
145+ Copyright (c) Facebook, Inc. All rights reserved.
146+ Copyright (c) 2023-2025 Igor Pavlov.
140147
141- Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
148+ Text of the "BSD 3-clause License"
149+ ----------------------------------
142150
143- 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
151+ Redistribution and use in source and binary forms, with or without modification,
152+ are permitted provided that the following conditions are met:
144153
145- 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer
146- in the documentation and/or other materials provided with the distribution .
154+ 1. Redistributions of source code must retain the above copyright notice, this
155+ list of conditions and the following disclaimer .
147156
148- 3. Neither the name of the copyright holder(s) nor the names of any contributors may be used to endorse or promote products derived
149- from this software without specific prior written permission.
157+ 2. Redistributions in binary form must reproduce the above copyright notice,
158+ this list of conditions and the following disclaimer in the documentation
159+ and/or other materials provided with the distribution.
150160
151- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
152- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
153- COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
154- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
155- HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
156- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
157- ----
161+ 3. Neither the name of the copyright holder nor the names of its contributors may
162+ be used to endorse or promote products derived from this software without
163+ specific prior written permission.
158164
165+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
166+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
167+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
168+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
169+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
170+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
171+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
172+ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
173+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
174+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
159175
176+ ---
160177
161178
162- unRAR license restriction
163- -------------------------
164179
165- The decompression engine for RAR archives was developed using source
166- code of unRAR program.
167- All copyrights to original unRAR code are owned by Alexander Roshal.
168180
169- The license for original unRAR code has the following restriction:
181+ BSD 2-clause License in 7-Zip code
182+ ----------------------------------
170183
171- The unRAR sources cannot be used to re-create the RAR compression algorithm,
172- which is proprietary. Distribution of modified unRAR sources in separate form
173- or as a part of other software is permitted, provided that it is clearly
174- stated in the documentation and source comments that the code may
175- not be used to develop a RAR (WinRAR) compatible archiver.
184+ The "BSD 2-clause License" is used for the XXH64 code in 7-Zip.
176185
186+ XXH64 code in 7-Zip was derived from the original XXH64 code developed by Yann Collet.
177187
178- --
179- Igor Pavlov
188+ Copyright (c) 2012-2021 Yann Collet.
189+ Copyright (c) 2023-2025 Igor Pavlov.
190+
191+ Text of the "BSD 2-clause License"
192+ ----------------------------------
193+
194+ Redistribution and use in source and binary forms, with or without modification,
195+ are permitted provided that the following conditions are met:
196+
197+ 1. Redistributions of source code must retain the above copyright notice, this
198+ list of conditions and the following disclaimer.
199+
200+ 2. Redistributions in binary form must reproduce the above copyright notice,
201+ this list of conditions and the following disclaimer in the documentation
202+ and/or other materials provided with the distribution.
203+
204+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
205+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
206+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
207+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
208+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
209+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
210+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
211+ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
212+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
213+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
214+
215+ ---
216+
217+
218+
219+
220+ unRAR license restriction
221+ -------------------------
222+
223+ The decompression engine for RAR archives was developed using source
224+ code of unRAR program.
225+ All copyrights to original unRAR code are owned by Alexander Roshal.
226+
227+ The license for original unRAR code has the following restriction:
228+
229+ The unRAR sources cannot be used to re-create the RAR compression algorithm,
230+ which is proprietary. Distribution of modified unRAR sources in separate form
231+ or as a part of other software is permitted, provided that it is clearly
232+ stated in the documentation and source comments that the code may
233+ not be used to develop a RAR (WinRAR) compatible archiver.
234+
235+ --
180236```
181237
182238### AlphaFS @ 2.1.3
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