source: vbox/trunk/COPYING@ 103193

Last change on this file since 103193 was 96085, checked in by vboxsync, 2 years ago

COPYING,doc\License-gpl-3.0.txt: Just use (C) instead of the copyright symbol. Storing it as latin-1 upsets scm and it's a tossup whether it'll display correctly. bugref:10229

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[96062]1OPYING file for VirtualBox versions 7.0 and later versions that include this
[35197]4Preliminary notes:
[96062]61) The majority of the code in the VirtualBox base package is licensed under
7the GNU General Public License, version 3 (GPL). VirtualBox contains many
8components developed by Oracle and various third parties. The license for
9each component is located in the licensing documentation and/or in the
10component's source code.
[96062]122) As an exception to the reciprocal license obligations of the GPL listed
13below, you may use any VirtualBox header file that is marked by Oracle as
14licensed under both the GPL and the Common Development and Distribution
15License version 1.0 (CDDL) to invoke the unmodified VirtualBox libraries. In
16other words, calling such a multi-licensed interface by dynamically linking
17to the unmodified VirtualBox libraries is considered a normal use of
18VirtualBox and does not turn the calling code into a derived work of
19VirtualBox. In particular, this applies to code that wants to extend
20VirtualBox by way of the Extension Pack mechanism declared in the ExtPack.h
21header file.
[96062]233) Whoever creates or distributes a derived work based on VirtualBox is not
24obligated to grant the above exceptions for such a version. The GPL permits
25you to release a modified version without the above exception; in addition,
26Oracle hereby also allows you to release a modified version which carries
[96038]27forward these exceptions.
[96038]30Oracle America, Inc.
[96038]36Version 3, 29 June 2007
[96085]38Copyright (C) 2007 Free Software Foundation, Inc. <>
[96062]40Everyone is permitted to copy and distribute verbatim copies of this license
[96038]41document, but changing it is not allowed.
[96062]44The GNU General Public License is a free, copyleft license for software and
[96038]45other kinds of works.
[96062]47The licenses for most software and other practical works are designed to take
48away your freedom to share and change the works. By contrast, the GNU General
49Public License is intended to guarantee your freedom to share and change all
50versions of a program--to make sure it remains free software for all its
51users. We, the Free Software Foundation, use the GNU General Public License
52for most of our software; it applies also to any other work released this way
[96038]53by its authors. You can apply it to your programs, too.
[96062]55When we speak of free software, we are referring to freedom, not price. Our
56General Public Licenses are designed to make sure that you have the freedom
57to distribute copies of free software (and charge for them if you wish), that
58you receive source code or can get it if you want it, that you can change the
59software or use pieces of it in new free programs, and that you know you can
[96038]60do these things.
[96062]62To protect your rights, we need to prevent others from denying you these
63rights or asking you to surrender the rights. Therefore, you have certain
64responsibilities if you distribute copies of the software, or if you modify
[96038]65it: responsibilities to respect the freedom of others.
[96062]67For example, if you distribute copies of such a program, whether gratis or
68for a fee, you must pass on to the recipients the same freedoms that you
69received. You must make sure that they, too, receive or can get the source
[96038]70code. And you must show them these terms so they know their rights.
[96062]72Developers that use the GNU GPL protect your rights with two steps: (1)
73assert copyright on the software, and (2) offer you this License giving you
[96038]74legal permission to copy, distribute and/or modify it.
[96062]76For the developers' and authors' protection, the GPL clearly explains that
77there is no warranty for this free software. For both users' and authors'
78sake, the GPL requires that modified versions be marked as changed, so that
79their problems will not be attributed erroneously to authors of previous
[96062]82Some devices are designed to deny users access to install or run modified
83versions of the software inside them, although the manufacturer can do so.
84This is fundamentally incompatible with the aim of protecting users' freedom
85to change the software. The systematic pattern of such abuse occurs in the
86area of products for individuals to use, which is precisely where it is most
87unacceptable. Therefore, we have designed this version of the GPL to prohibit
88the practice for those products. If such problems arise substantially in
89other domains, we stand ready to extend this provision to those domains in
[96038]90future versions of the GPL, as needed to protect the freedom of users.
[96062]92Finally, every program is threatened constantly by software patents. States
93should not allow patents to restrict development and use of software on
94general-purpose computers, but in those that do, we wish to avoid the special
95danger that patents applied to a free program could make it effectively
96proprietary. To prevent this, the GPL assures that patents cannot be used to
[96038]97render the program non-free.
[96062]99The precise terms and conditions for copying, distribution and modification
[96038]1040. Definitions.
[96038]106"This License" refers to version 3 of the GNU General Public License.
[96062]108"Copyright" also means copyright-like laws that apply to other kinds of
[96038]109works, such as semiconductor masks.
[96062]111"The Program" refers to any copyrightable work licensed under this License.
112Each licensee is addressed as "you". "Licensees" and "recipients" may be
[96038]113individuals or organizations.
[96062]115To "modify" a work means to copy from or adapt all or part of the work in a
116fashion requiring copyright permission, other than the making of an exact
117copy. The resulting work is called a "modified version" of the earlier work
[96038]118or a work "based on" the earlier work.
[96062]120A "covered work" means either the unmodified Program or a work based on the
[96062]123To "propagate" a work means to do anything with it that, without permission,
124would make you directly or secondarily liable for infringement under
125applicable copyright law, except executing it on a computer or modifying a
126private copy. Propagation includes copying, distribution (with or without
127modification), making available to the public, and in some countries other
[96038]128activities as well.
[96062]130To "convey" a work means any kind of propagation that enables other parties
131to make or receive copies. Mere interaction with a user through a computer
[96038]132network, with no transfer of a copy, is not conveying.
[96062]134An interactive user interface displays "Appropriate Legal Notices" to the
135extent that it includes a convenient and prominently visible feature that (1)
136displays an appropriate copyright notice, and (2) tells the user that there
137is no warranty for the work (except to the extent that warranties are
138provided), that licensees may convey the work under this License, and how to
139view a copy of this License. If the interface presents a list of user
140commands or options, such as a menu, a prominent item in the list meets this
[96038]1431. Source Code.
[96062]145The "source code" for a work means the preferred form of the work for making
[96038]146modifications to it. "Object code" means any non-source form of a work.
[96062]148A "Standard Interface" means an interface that either is an official standard
149defined by a recognized standards body, or, in the case of interfaces
150specified for a particular programming language, one that is widely used
[96038]151among developers working in that language.
[96062]153The "System Libraries" of an executable work include anything, other than the
154work as a whole, that (a) is included in the normal form of packaging a Major
155Component, but which is not part of that Major Component, and (b) serves only
156to enable use of the work with that Major Component, or to implement a
157Standard Interface for which an implementation is available to the public in
158source code form. A "Major Component", in this context, means a major
159essential component (kernel, window system, and so on) of the specific
160operating system (if any) on which the executable work runs, or a compiler
[96038]161used to produce the work, or an object code interpreter used to run it.
[96062]163The "Corresponding Source" for a work in object code form means all the
164source code needed to generate, install, and (for an executable work) run the
165object code and to modify the work, including scripts to control those
166activities. However, it does not include the work's System Libraries, or
167general-purpose tools or generally available free programs which are used
168unmodified in performing those activities but which are not part of the work.
169For example, Corresponding Source includes interface definition files
170associated with source files for the work, and the source code for shared
171libraries and dynamically linked subprograms that the work is specifically
172designed to require, such as by intimate data communication or control flow
[96038]173between those subprograms and other parts of the work.
[96062]175The Corresponding Source need not include anything that users can regenerate
[96038]176automatically from other parts of the Corresponding Source.
[96038]178The Corresponding Source for a work in source code form is that same work.
[96038]1802. Basic Permissions.
[96062]182All rights granted under this License are granted for the term of copyright
183on the Program, and are irrevocable provided the stated conditions are met.
184This License explicitly affirms your unlimited permission to run the
185unmodified Program. The output from running a covered work is covered by this
186License only if the output, given its content, constitutes a covered work.
187This License acknowledges your rights of fair use or other equivalent, as
[96038]188provided by copyright law.
[96062]190You may make, run and propagate covered works that you do not convey, without
191conditions so long as your license otherwise remains in force. You may convey
192covered works to others for the sole purpose of having them make
193modifications exclusively for you, or provide you with facilities for running
194those works, provided that you comply with the terms of this License in
195conveying all material for which you do not control copyright. Those thus
196making or running the covered works for you must do so exclusively on your
197behalf, under your direction and control, on terms that prohibit them from
198making any copies of your copyrighted material outside their relationship
[96038]199with you.
[96062]201Conveying under any other circumstances is permitted solely under the
202conditions stated below. Sublicensing is not allowed; section 10 makes it
[96038]2053. Protecting Users' Legal Rights From Anti-Circumvention Law.
[96062]207No covered work shall be deemed part of an effective technological measure
208under any applicable law fulfilling obligations under article 11 of the WIPO
209copyright treaty adopted on 20 December 1996, or similar laws prohibiting or
[96038]210restricting circumvention of such measures.
[96062]212When you convey a covered work, you waive any legal power to forbid
213circumvention of technological measures to the extent such circumvention is
214effected by exercising rights under this License with respect to the covered
215work, and you disclaim any intention to limit operation or modification of
216the work as a means of enforcing, against the work's users, your or third
[96038]217parties' legal rights to forbid circumvention of technological measures.
[96038]2194. Conveying Verbatim Copies.
[96062]221You may convey verbatim copies of the Program's source code as you receive
222it, in any medium, provided that you conspicuously and appropriately publish
223on each copy an appropriate copyright notice; keep intact all notices stating
224that this License and any non-permissive terms added in accord with section 7
225apply to the code; keep intact all notices of the absence of any warranty;
[96038]226and give all recipients a copy of this License along with the Program.
[96062]228You may charge any price or no price for each copy that you convey, and you
[96038]229may offer support or warranty protection for a fee.
[96038]2315. Conveying Modified Source Versions.
[96062]233You may convey a work based on the Program, or the modifications to produce
234it from the Program, in the form of source code under the terms of section 4,
[96038]235provided that you also meet all of these conditions:
[96062]237 a) The work must carry prominent notices stating that you modified it,
[96038]238and giving a relevant date.
[96062]239 b) The work must carry prominent notices stating that it is released
240under this License and any conditions added under section 7. This requirement
[96038]241modifies the requirement in section 4 to "keep intact all notices".
[96062]242 c) You must license the entire work, as a whole, under this License to
243anyone who comes into possession of a copy. This License will therefore
244apply, along with any applicable section 7 additional terms, to the whole of
245the work, and all its parts, regardless of how they are packaged. This
246License gives no permission to license the work in any other way, but it does
[96038]247not invalidate such permission if you have separately received it.
[96062]248 d) If the work has interactive user interfaces, each must display
249Appropriate Legal Notices; however, if the Program has interactive interfaces
250that do not display Appropriate Legal Notices, your work need not make them
[96038]251do so.
[96062]253A compilation of a covered work with other separate and independent works,
254which are not by their nature extensions of the covered work, and which are
255not combined with it such as to form a larger program, in or on a volume of a
256storage or distribution medium, is called an "aggregate" if the compilation
257and its resulting copyright are not used to limit the access or legal rights
258of the compilation's users beyond what the individual works permit. Inclusion
259of a covered work in an aggregate does not cause this License to apply to the
[96038]260other parts of the aggregate.
[96038]2626. Conveying Non-Source Forms.
[96062]264You may convey a covered work in object code form under the terms of sections
2654 and 5, provided that you also convey the machine-readable Corresponding
[96038]266Source under the terms of this License, in one of these ways:
[96062]268 a) Convey the object code in, or embodied in, a physical product
269(including a physical distribution medium), accompanied by the Corresponding
270Source fixed on a durable physical medium customarily used for software
[96062]272 b) Convey the object code in, or embodied in, a physical product
273(including a physical distribution medium), accompanied by a written offer,
274valid for at least three years and valid for as long as you offer spare parts
275or customer support for that product model, to give anyone who possesses the
276object code either (1) a copy of the Corresponding Source for all the
277software in the product that is covered by this License, on a durable
278physical medium customarily used for software interchange, for a price no
279more than your reasonable cost of physically performing this conveying of
280source, or (2) access to copy the Corresponding Source from a network server
[96038]281at no charge.
[96062]282 c) Convey individual copies of the object code with a copy of the written
283offer to provide the Corresponding Source. This alternative is allowed only
284occasionally and noncommercially, and only if you received the object code
[96038]285with such an offer, in accord with subsection 6b.
[96062]286 d) Convey the object code by offering access from a designated place
287(gratis or for a charge), and offer equivalent access to the Corresponding
288Source in the same way through the same place at no further charge. You need
289not require recipients to copy the Corresponding Source along with the object
290code. If the place to copy the object code is a network server, the
291Corresponding Source may be on a different server (operated by you or a third
292party) that supports equivalent copying facilities, provided you maintain
293clear directions next to the object code saying where to find the
294Corresponding Source. Regardless of what server hosts the Corresponding
295Source, you remain obligated to ensure that it is available for as long as
[96038]296needed to satisfy these requirements.
[96062]297 e) Convey the object code using peer-to-peer transmission, provided you
298inform other peers where the object code and Corresponding Source of the work
[96038]299are being offered to the general public at no charge under subsection 6d.
[96062]301A separable portion of the object code, whose source code is excluded from
302the Corresponding Source as a System Library, need not be included in
[96038]303conveying the object code work.
[96062]305A "User Product" is either (1) a "consumer product", which means any tangible
306personal property which is normally used for personal, family, or household
307purposes, or (2) anything designed or sold for incorporation into a dwelling.
308In determining whether a product is a consumer product, doubtful cases shall
309be resolved in favor of coverage. For a particular product received by a
310particular user, "normally used" refers to a typical or common use of that
311class of product, regardless of the status of the particular user or of the
312way in which the particular user actually uses, or expects or is expected to
313use, the product. A product is a consumer product regardless of whether the
314product has substantial commercial, industrial or non-consumer uses, unless
[96038]315such uses represent the only significant mode of use of the product.
[96062]317"Installation Information" for a User Product means any methods, procedures,
318authorization keys, or other information required to install and execute
319modified versions of a covered work in that User Product from a modified
320version of its Corresponding Source. The information must suffice to ensure
321that the continued functioning of the modified object code is in no case
[96038]322prevented or interfered with solely because modification has been made.
[96062]324If you convey an object code work under this section in, or with, or
325specifically for use in, a User Product, and the conveying occurs as part of
326a transaction in which the right of possession and use of the User Product is
327transferred to the recipient in perpetuity or for a fixed term (regardless of
328how the transaction is characterized), the Corresponding Source conveyed
329under this section must be accompanied by the Installation Information. But
330this requirement does not apply if neither you nor any third party retains
331the ability to install modified object code on the User Product (for example,
[96038]332the work has been installed in ROM).
[96062]334The requirement to provide Installation Information does not include a
335requirement to continue to provide support service, warranty, or updates for
336a work that has been modified or installed by the recipient, or for the User
337Product in which it has been modified or installed. Access to a network may
338be denied when the modification itself materially and adversely affects the
339operation of the network or violates the rules and protocols for
[96038]340communication across the network.
[96062]342Corresponding Source conveyed, and Installation Information provided, in
343accord with this section must be in a format that is publicly documented (and
344with an implementation available to the public in source code form), and must
[96038]345require no special password or key for unpacking, reading or copying.
[96038]3477. Additional Terms.
[96062]349"Additional permissions" are terms that supplement the terms of this License
350by making exceptions from one or more of its conditions. Additional
351permissions that are applicable to the entire Program shall be treated as
352though they were included in this License, to the extent that they are valid
353under applicable law. If additional permissions apply only to part of the
354Program, that part may be used separately under those permissions, but the
355entire Program remains governed by this License without regard to the
[96038]356additional permissions.
[96062]358When you convey a copy of a covered work, you may at your option remove any
359additional permissions from that copy, or from any part of it. (Additional
360permissions may be written to require their own removal in certain cases when
361you modify the work.) You may place additional permissions on material, added
362by you to a covered work, for which you have or can give appropriate
[96038]363copyright permission.
[96062]365Notwithstanding any other provision of this License, for material you add to
366a covered work, you may (if authorized by the copyright holders of that
[96038]367material) supplement the terms of this License with terms:
[96062]369 a) Disclaiming warranty or limiting liability differently from the terms
[96038]370of sections 15 and 16 of this License; or
[96062]371 b) Requiring preservation of specified reasonable legal notices or author
372attributions in that material or in the Appropriate Legal Notices displayed
[96038]373by works containing it; or
[96062]374 c) Prohibiting misrepresentation of the origin of that material, or
375requiring that modified versions of such material be marked in reasonable
[96038]376ways as different from the original version; or
[96062]377 d) Limiting the use for publicity purposes of names of licensors or
[96038]378authors of the material; or
[96062]379 e) Declining to grant rights under trademark law for use of some trade
[96038]380names, trademarks, or service marks; or
[96062]381 f) Requiring indemnification of licensors and authors of that material by
382anyone who conveys the material (or modified versions of it) with contractual
383assumptions of liability to the recipient, for any liability that these
[96038]384contractual assumptions directly impose on those licensors and authors.
[96062]386All other non-permissive additional terms are considered "further
387restrictions" within the meaning of section 10. If the Program as you
388received it, or any part of it, contains a notice stating that it is governed
389by this License along with a term that is a further restriction, you may
390remove that term. If a license document contains a further restriction but
391permits relicensing or conveying under this License, you may add to a covered
392work material governed by the terms of that license document, provided that
[96038]393the further restriction does not survive such relicensing or conveying.
[96062]395If you add terms to a covered work in accord with this section, you must
396place, in the relevant source files, a statement of the additional terms that
397apply to those files, or a notice indicating where to find the applicable
[96062]400Additional terms, permissive or non-permissive, may be stated in the form of
401a separately written license, or stated as exceptions; the above requirements
[96038]402apply either way.
[96038]4048. Termination.
[96062]406You may not propagate or modify a covered work except as expressly provided
407under this License. Any attempt otherwise to propagate or modify it is void,
408and will automatically terminate your rights under this License (including
[96038]409any patent licenses granted under the third paragraph of section 11).
[96062]411However, if you cease all violation of this License, then your license from a
412particular copyright holder is reinstated (a) provisionally, unless and until
413the copyright holder explicitly and finally terminates your license, and (b)
414permanently, if the copyright holder fails to notify you of the violation by
[96038]415some reasonable means prior to 60 days after the cessation.
[96062]417Moreover, your license from a particular copyright holder is reinstated
418permanently if the copyright holder notifies you of the violation by some
419reasonable means, this is the first time you have received notice of
420violation of this License (for any work) from that copyright holder, and you
[96038]421cure the violation prior to 30 days after your receipt of the notice.
[96062]423Termination of your rights under this section does not terminate the licenses
424of parties who have received copies or rights from you under this License. If
425your rights have been terminated and not permanently reinstated, you do not
[96038]426qualify to receive new licenses for the same material under section 10.
[96038]4289. Acceptance Not Required for Having Copies.
[96062]430You are not required to accept this License in order to receive or run a copy
431of the Program. Ancillary propagation of a covered work occurring solely as a
432consequence of using peer-to-peer transmission to receive a copy likewise
433does not require acceptance. However, nothing other than this License grants
434you permission to propagate or modify any covered work. These actions
435infringe copyright if you do not accept this License. Therefore, by modifying
436or propagating a covered work, you indicate your acceptance of this License
[96038]437to do so.
[96038]43910. Automatic Licensing of Downstream Recipients.
[96062]441Each time you convey a covered work, the recipient automatically receives a
442license from the original licensors, to run, modify and propagate that work,
443subject to this License. You are not responsible for enforcing compliance by
[96038]444third parties with this License.
[96062]446An "entity transaction" is a transaction transferring control of an
447organization, or substantially all assets of one, or subdividing an
448organization, or merging organizations. If propagation of a covered work
449results from an entity transaction, each party to that transaction who
450receives a copy of the work also receives whatever licenses to the work the
451party's predecessor in interest had or could give under the previous
452paragraph, plus a right to possession of the Corresponding Source of the work
453from the predecessor in interest, if the predecessor has it or can get it
[96038]454with reasonable efforts.
[96062]456You may not impose any further restrictions on the exercise of the rights
457granted or affirmed under this License. For example, you may not impose a
458license fee, royalty, or other charge for exercise of rights granted under
459this License, and you may not initiate litigation (including a cross-claim or
460counterclaim in a lawsuit) alleging that any patent claim is infringed by
461making, using, selling, offering for sale, or importing the Program or any
[96038]462portion of it.
[96038]46411. Patents.
[96062]466A "contributor" is a copyright holder who authorizes use under this License
467of the Program or a work on which the Program is based. The work thus
[96038]468licensed is called the contributor's "contributor version".
[96062]470A contributor's "essential patent claims" are all patent claims owned or
471controlled by the contributor, whether already acquired or hereafter
472acquired, that would be infringed by some manner, permitted by this License,
473of making, using, or selling its contributor version, but do not include
474claims that would be infringed only as a consequence of further modification
475of the contributor version. For purposes of this definition, "control"
476includes the right to grant patent sublicenses in a manner consistent with
[96038]477the requirements of this License.
[96062]479Each contributor grants you a non-exclusive, worldwide, royalty-free patent
480license under the contributor's essential patent claims, to make, use, sell,
481offer for sale, import and otherwise run, modify and propagate the contents
[96038]482of its contributor version.
[96062]484In the following three paragraphs, a "patent license" is any express
485agreement or commitment, however denominated, not to enforce a patent (such
486as an express permission to practice a patent or covenant not to sue for
487patent infringement). To "grant" such a patent license to a party means to
488make such an agreement or commitment not to enforce a patent against the
[96062]491If you convey a covered work, knowingly relying on a patent license, and the
492Corresponding Source of the work is not available for anyone to copy, free of
493charge and under the terms of this License, through a publicly available
494network server or other readily accessible means, then you must either (1)
495cause the Corresponding Source to be so available, or (2) arrange to deprive
496yourself of the benefit of the patent license for this particular work, or
497(3) arrange, in a manner consistent with the requirements of this License, to
498extend the patent license to downstream recipients. "Knowingly relying" means
499you have actual knowledge that, but for the patent license, your conveying
500the covered work in a country, or your recipient's use of the covered work in
501a country, would infringe one or more identifiable patents in that country
[96038]502that you have reason to believe are valid.
[96062]504If, pursuant to or in connection with a single transaction or arrangement,
505you convey, or propagate by procuring conveyance of, a covered work, and
506grant a patent license to some of the parties receiving the covered work
507authorizing them to use, propagate, modify or convey a specific copy of the
508covered work, then the patent license you grant is automatically extended to
[96038]509all recipients of the covered work and works based on it.
[96062]511A patent license is "discriminatory" if it does not include within the scope
[96038]512of its coverage, prohibits the exercise of, or is conditioned on the non-
[96062]513exercise of one or more of the rights that are specifically granted under
514this License. You may not convey a covered work if you are a party to an
515arrangement with a third party that is in the business of distributing
516software, under which you make payment to the third party based on the extent
517of your activity of conveying the work, and under which the third party
518grants, to any of the parties who would receive the covered work from you, a
519discriminatory patent license (a) in connection with copies of the covered
520work conveyed by you (or copies made from those copies), or (b) primarily for
521and in connection with specific products or compilations that contain the
522covered work, unless you entered into that arrangement, or that patent
[96038]523license was granted, prior to 28 March 2007.
[96062]525Nothing in this License shall be construed as excluding or limiting any
526implied license or other defenses to infringement that may otherwise be
[96038]527available to you under applicable patent law.
[96038]52912. No Surrender of Others' Freedom.
[96062]531If conditions are imposed on you (whether by court order, agreement or
532otherwise) that contradict the conditions of this License, they do not excuse
533you from the conditions of this License. If you cannot convey a covered work
534so as to satisfy simultaneously your obligations under this License and any
535other pertinent obligations, then as a consequence you may not convey it at
536all. For example, if you agree to terms that obligate you to collect a
537royalty for further conveying from those to whom you convey the Program, the
538only way you could satisfy both those terms and this License would be to
[96038]539refrain entirely from conveying the Program.
[96038]54113. Use with the GNU Affero General Public License.
[96062]543Notwithstanding any other provision of this License, you have permission to
544link or combine any covered work with a work licensed under version 3 of the
545GNU Affero General Public License into a single combined work, and to convey
546the resulting work. The terms of this License will continue to apply to the
547part which is the covered work, but the special requirements of the GNU
548Affero General Public License, section 13, concerning interaction through a
[96038]549network will apply to the combination as such.
[96038]55114. Revised Versions of this License.
[96062]553The Free Software Foundation may publish revised and/or new versions of the
554GNU General Public License from time to time. Such new versions will be
555similar in spirit to the present version, but may differ in detail to address
[96038]556new problems or concerns.
[96062]558Each version is given a distinguishing version number. If the Program
559specifies that a certain numbered version of the GNU General Public License
560"or any later version" applies to it, you have the option of following the
561terms and conditions either of that numbered version or of any later version
562published by the Free Software Foundation. If the Program does not specify a
563version number of the GNU General Public License, you may choose any version
[96038]564ever published by the Free Software Foundation.
[96062]566If the Program specifies that a proxy can decide which future versions of the
567GNU General Public License can be used, that proxy's public statement of
568acceptance of a version permanently authorizes you to choose that version for
[96038]569the Program.
[96062]571Later license versions may give you additional or different permissions.
572However, no additional obligations are imposed on any author or copyright
[96038]573holder as a result of your choosing to follow a later version.
[96038]57515. Disclaimer of Warranty.
[96038]58616. Limitation of Liability.
[96038]59717. Interpretation of Sections 15 and 16.
[96062]599If the disclaimer of warranty and limitation of liability provided above
600cannot be given local legal effect according to their terms, reviewing courts
601shall apply local law that most closely approximates an absolute waiver of
602all civil liability in connection with the Program, unless a warranty or
603assumption of liability accompanies a copy of the Program in return for a
607How to Apply These Terms to Your New Programs
[96062]609If you develop a new program, and you want it to be of the greatest possible
610use to the public, the best way to achieve this is to make it free software
[96038]611which everyone can redistribute and change under these terms.
[96062]613To do so, attach the following notices to the program. It is safest to attach
614them to the start of each source file to most effectively state the exclusion
615of warranty; and each file should have at least the "copyright" line and a
[96038]616pointer to where the full notice is found.
[6011]618 <one line to give the program's name and a brief idea of what it does.>
619 Copyright (C) <year> <name of author>
[96038]621 This program is free software: you can redistribute it and/or modify
[6011]622 it under the terms of the GNU General Public License as published by
[96038]623 the Free Software Foundation, either version 3 of the License, or
[6011]624 (at your option) any later version.
626 This program is distributed in the hope that it will be useful,
627 but WITHOUT ANY WARRANTY; without even the implied warranty of
629 GNU General Public License for more details.
631 You should have received a copy of the GNU General Public License
[96038]632 along with this program. If not, see <>.
634Also add information on how to contact you by electronic and paper mail.
[96062]636If the program does terminal interaction, make it output a short notice like
[96038]637this when it starts in an interactive mode:
[96038]639 <program> Copyright (C) <year> <name of author>
[96062]640 This program comes with ABSOLUTELY NO WARRANTY; for details type `show
[6011]642 This is free software, and you are welcome to redistribute it
643 under certain conditions; type `show c' for details.
[96062]645The hypothetical commands `show w' and `show c' should show the appropriate
646parts of the General Public License. Of course, your program's commands might
[96038]647be different; for a GUI interface, you would use an "about box".
[96062]649You should also get your employer (if you work as a programmer) or school, if
650any, to sign a "copyright disclaimer" for the program, if necessary. For more
651information on this, and how to apply and follow the GNU GPL, see
[96062]654The GNU General Public License does not permit incorporating your program
655into proprietary programs. If your program is a subroutine library, you may
656consider it more useful to permit linking proprietary applications with the
657library. If this is what you want to do, use the GNU Lesser General Public
658License instead of this License. But first, please read
[96038]663COPYING file last revised: July 22, 2022
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