License-History.txt
                              ===================

This file contains the history of license change and contributor's agreement
changes.

Unless otherwise noted in a specific file, the EDK2 project is now licensed
under the terms listed in the License.txt file.  Terms under which Contributions
made prior to the move to the License.txt formulation are shown below.  Those
terms require notice of the terms themselves be preserved and presented with the
contributions.  This file serves that preservation purpose as a matter of
documenting the history of the project.

Key Dates
----------
* August 3, 2017

  Update the TianoCore Contribution Agreement from Version 1.0
  to Version 1.1 to cover open source documentation associated
  with the TianoCore project.

  Version 1.0 covers source code files.  Version 1.1 is a
  backwards compatible extension that adds support for document
  files in both source form and compiled form.

  References:
      https://opensource.org/licenses/BSD-2-Clause
      Complete text of TianoCore Contribution Agreement 1.0 included below
      Complete text of TianoCore Contribution Agreement 1.1 included below

  Proposals (RFCs):
      https://lists.01.org/pipermail/edk2-devel/2017-March/008654.html

  TianoCore Bugzilla:
      https://bugzilla.tianocore.org/show_bug.cgi?id=629

* April 9, 2019

  Replace BSD 2-Clause License with BSD + Patent License removing the need for
  the TianoCore Contribution Agreement.

  References:
      https://opensource.org/licenses/BSD-2-Clause
      Complete text of TianoCore Contribution Agreement 1.0 included below
      Complete text of TianoCore Contribution Agreement 1.1 included below
      https://opensource.org/licenses/BSDplusPatent

  Proposals (RFCs):
      https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
      https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html

  TianoCore Bugzilla:
      https://bugzilla.tianocore.org/show_bug.cgi?id=1373

--------------------------------------------------------------------------------
License.txt: BSD 2-Clause License
--------------------------------------------------------------------------------
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in
      the documentation and/or other materials provided with the
      distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "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. IN NO EVENT SHALL THE
    COPYRIGHT HOLDER OR CONTRIBUTORS 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.
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
Contributions.txt: TianoCore Contribution Agreement 1.1
--------------------------------------------------------------------------------
    ======================
    = Code Contributions =
    ======================

    To make a contribution to a TianoCore project, follow these steps.
    1. Create a change description in the format specified below to
       use in the source control commit log.
    2. Your commit message must include your "Signed-off-by" signature,
       and "Contributed-under" message.
    3. Your "Contributed-under" message explicitly states that the
       contribution is made under the terms of the specified
       contribution agreement.  Your "Contributed-under" message
       must include the name of contribution agreement and version.
       For example: Contributed-under: TianoCore Contribution Agreement 1.1
       The "TianoCore Contribution Agreement" is included below in
       this document.
    4. Submit your code to the TianoCore project using the process
       that the project documents on its web page.  If the process is
       not documented, then submit the code on development email list
       for the project.
    5. It is preferred that contributions are submitted using the same
       copyright license as the base project. When that is not possible,
       then contributions using the following licenses can be accepted:
       * BSD (2-clause): http://opensource.org/licenses/BSD-2-Clause
       * BSD (3-clause): http://opensource.org/licenses/BSD-3-Clause
       * MIT: http://opensource.org/licenses/MIT
       * Python-2.0: http://opensource.org/licenses/Python-2.0
       * Zlib: http://opensource.org/licenses/Zlib

       For documentation:
       * FreeBSD Documentation License
         https://www.freebsd.org/copyright/freebsd-doc-license.html

       Contributions of code put into the public domain can also be
       accepted.

       Contributions using other licenses might be accepted, but further
       review will be required.

    =====================================================
    = Change Description / Commit Message / Patch Email =
    =====================================================

    Your change description should use the standard format for a
    commit message, and must include your "Signed-off-by" signature
    and the "Contributed-under" message.

    == Sample Change Description / Commit Message =

    === Start of sample patch email message ===

    From: Contributor Name <contributor@example.com>
    Subject: [Repository/Branch PATCH] Module: Brief-single-line-summary

    Full-commit-message

    Contributed-under: TianoCore Contribution Agreement 1.1
    Signed-off-by: Contributor Name <contributor@example.com>
    ---

    An extra message for the patch email which will not be considered part
    of the commit message can be added here.

    Patch content inline or attached

    === End of sample patch email message ===

    === Notes for sample patch email ===

    * The first line of commit message is taken from the email's subject
      line following [Repository/Branch PATCH]. The remaining portion of the
      commit message is the email's content until the '---' line.
    * git format-patch is one way to create this format

    === Definitions for sample patch email ===

    * "Repository" is the identifier of the repository the patch applies.
      This identifier should only be provided for repositories other than
      'edk2'. For example 'edk2-BuildSpecification' or 'staging'.
    * "Branch" is the identifier of the branch the patch applies. This
      identifier should only be provided for branches other than 'edk2/master'.
      For example 'edk2/UDK2015', 'edk2-BuildSpecification/release/1.27', or
      'staging/edk2-test'.
    * "Module" is a short identifier for the affected code or documentation. For
      example 'MdePkg', 'MdeModulePkg/UsbBusDxe', 'Introduction', or
      'EDK II INF File Format'.
    * "Brief-single-line-summary" is a short summary of the change.
    * The entire first line should be less than ~70 characters.
    * "Full-commit-message" a verbose multiple line comment describing
      the change.  Each line should be less than ~70 characters.
    * "Contributed-under" explicitly states that the contribution is
      made under the terms of the contribution agreement. This
      agreement is included below in this document.
    * "Signed-off-by" is the contributor's signature identifying them
      by their real/legal name and their email address.

    ========================================
    = TianoCore Contribution Agreement 1.1 =
    ========================================

    INTEL CORPORATION ("INTEL") MAKES AVAILABLE SOFTWARE, DOCUMENTATION
    ("DOCUMENTATION"), INFORMATION AND/OR OTHER MATERIALS FOR USE IN THE
    TIANOCORE OPEN SOURCE PROJECT (COLLECTIVELY "CONTENT"). USE OF THE CONTENT
    IS GOVERNED BY THE TERMS AND CONDITIONS OF THIS AGREEMENT BETWEEN YOU AND
    INTEL AND/OR THE TERMS AND CONDITIONS OF LICENSE AGREEMENTS OR NOTICES
    INDICATED OR REFERENCED BELOW. BY USING THE CONTENT, YOU AGREE THAT YOUR
    USE OF THE CONTENT IS GOVERNED BY THIS AGREEMENT AND/OR THE TERMS AND
    CONDITIONS OF ANY APPLICABLE LICENSE AGREEMENTS OR NOTICES INDICATED OR
    REFERENCED BELOW. IF YOU DO NOT AGREE TO THE TERMS AND CONDITIONS OF THIS
    AGREEMENT AND THE TERMS AND CONDITIONS OF ANY APPLICABLE LICENSE
    AGREEMENTS OR NOTICES INDICATED OR REFERENCED BELOW, THEN YOU MAY NOT
    USE THE CONTENT.

    Unless otherwise indicated, all Content (except Documentation) made available
    on the TianoCore site is provided to you under the terms and conditions of the
    BSD License ("BSD"). A copy of the BSD License is available at
    http://opensource.org/licenses/bsd-license.php
    or when applicable, in the associated License.txt file.

    Unless otherwise indicated, all Documentation made available on the
    TianoCore site is provided to you under the terms and conditions of the
    FreeBSD Documentation License ("FreeBSD"). A copy of the license is
    available at https://www.freebsd.org/copyright/freebsd-doc-license.html or,
    when applicable, in the associated License.txt file.

    Certain other content may be made available under other licenses as
    indicated in or with such Content (for example, in a License.txt file).

    You accept and agree to the following terms and conditions for Your
    present and future Contributions submitted to TianoCore site. Except
    for the license granted to Intel hereunder, You reserve all right,
    title, and interest in and to Your Contributions.

    == SECTION 1: Definitions ==
    * "You" or "Contributor" shall mean the copyright owner or legal
      entity authorized by the copyright owner that is making a
      Contribution hereunder. All other entities that control, are
      controlled by, or are under common control with that entity are
      considered to be a single Contributor. For the purposes of this
      definition, "control" means (i) the power, direct or indirect, to
      cause the direction or management of such entity, whether by
      contract or otherwise, or (ii) ownership of fifty percent (50%)
      or more of the outstanding shares, or (iii) beneficial ownership
      of such entity.
    * "Contribution" shall mean any original work of authorship,
      including any modifications or additions to an existing work,
      that is intentionally submitted by You to the TianoCore site for
      inclusion in, or documentation of, any of the Content. For the
      purposes of this definition, "submitted" means any form of
      electronic, verbal, or written communication sent to the
      TianoCore site or its representatives, including but not limited
      to communication on electronic mailing lists, source code
      control systems, and issue tracking systems that are managed by,
      or on behalf of, the TianoCore site for the purpose of
      discussing and improving the Content, but excluding
      communication that is conspicuously marked or otherwise
      designated in writing by You as "Not a Contribution."

    == SECTION 2: License for Contributions ==
    * Contributor hereby agrees that redistribution and use of the
      Contribution in source and binary forms, with or without
      modification, are permitted provided that the following
      conditions are met:
    ** Redistributions of source code must retain the Contributor's
       copyright notice, this list of conditions and the following
       disclaimer.
    ** Redistributions in binary form must reproduce the Contributor's
       copyright notice, this list of conditions and the following
       disclaimer in the documentation and/or other materials provided
       with the distribution.
    * Disclaimer. None of the names of Contributor, Intel, or the names
      of their respective contributors may be used to endorse or
      promote products derived from this software without specific
      prior written permission.
    * Contributor grants a license (with the right to sublicense) under
      claims of Contributor's patents that Contributor can license that
      are infringed by the Contribution (as delivered by Contributor) to
      make, use, distribute, sell, offer for sale, and import the
      Contribution and derivative works thereof solely to the minimum
      extent necessary for licensee to exercise the granted copyright
      license; this patent license applies solely to those portions of
      the Contribution that are unmodified. No hardware per se is
      licensed.
    * EXCEPT AS EXPRESSLY SET FORTH IN SECTION 3 BELOW, THE
      CONTRIBUTION IS PROVIDED BY THE CONTRIBUTOR "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. IN NO EVENT SHALL THE
      CONTRIBUTOR 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 THE
      CONTRIBUTION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
      DAMAGE.

    == SECTION 3: Representations ==
    * You represent that You are legally entitled to grant the above
      license. If your employer(s) has rights to intellectual property
      that You create that includes Your Contributions, You represent
      that You have received permission to make Contributions on behalf
      of that employer, that Your employer has waived such rights for
      Your Contributions.
    * You represent that each of Your Contributions is Your original
      creation (see Section 4 for submissions on behalf of others).
      You represent that Your Contribution submissions include complete
      details of any third-party license or other restriction
      (including, but not limited to, related patents and trademarks)
      of which You are personally aware and which are associated with
      any part of Your Contributions.

    == SECTION 4: Third Party Contributions ==
    * Should You wish to submit work that is not Your original creation,
      You may submit it to TianoCore site separately from any
      Contribution, identifying the complete details of its source
      and of any license or other restriction (including, but not
      limited to, related patents, trademarks, and license agreements)
      of which You are personally aware, and conspicuously marking the
      work as "Submitted on behalf of a third-party: [named here]".

    == SECTION 5: Miscellaneous ==
    * Applicable Laws. Any claims arising under or relating to this
      Agreement shall be governed by the internal substantive laws of
      the State of Delaware or federal courts located in Delaware,
      without regard to principles of conflict of laws.
    * Language. This Agreement is in the English language only, which
      language shall be controlling in all respects, and all versions
      of this Agreement in any other language shall be for accommodation
      only and shall not be binding. All communications and notices made
      or given pursuant to this Agreement, and all documentation and
      support to be provided, unless otherwise noted, shall be in the
      English language.
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
Contributions.txt: TianoCore Contribution Agreement 1.0
--------------------------------------------------------------------------------
    ======================
    = Code Contributions =
    ======================

    To make a contribution to a TianoCore project, follow these steps.
    1. Create a change description in the format specified below to
       use in the source control commit log.
    2. Your commit message must include your "Signed-off-by" signature,
       and "Contributed-under" message.
    3. Your "Contributed-under" message explicitly states that the
       contribution is made under the terms of the specified
       contribution agreement.  Your "Contributed-under" message
       must include the name of contribution agreement and version.
       For example: Contributed-under: TianoCore Contribution Agreement 1.0
       The "TianoCore Contribution Agreement" is included below in
       this document.
    4. Submit your code to the TianoCore project using the process
       that the project documents on its web page.  If the process is
       not documented, then submit the code on development email list
       for the project.
    5. It is preferred that contributions are submitted using the same
       copyright license as the base project. When that is not possible,
       then contributions using the following licenses can be accepted:
       * BSD (2-clause): http://opensource.org/licenses/BSD-2-Clause
       * BSD (3-clause): http://opensource.org/licenses/BSD-3-Clause
       * MIT: http://opensource.org/licenses/MIT
       * Python-2.0: http://opensource.org/licenses/Python-2.0
       * Zlib: http://opensource.org/licenses/Zlib

       Contributions of code put into the public domain can also be
       accepted.

       Contributions using other licenses might be accepted, but further
       review will be required.

    =====================================================
    = Change Description / Commit Message / Patch Email =
    =====================================================

    Your change description should use the standard format for a
    commit message, and must include your "Signed-off-by" signature
    and the "Contributed-under" message.

    == Sample Change Description / Commit Message =

    === Start of sample patch email message ===

    From: Contributor Name <contributor@example.com>
    Subject: [PATCH] CodeModule: Brief-single-line-summary

    Full-commit-message

    Contributed-under: TianoCore Contribution Agreement 1.0
    Signed-off-by: Contributor Name <contributor@example.com>
    ---

    An extra message for the patch email which will not be considered part
    of the commit message can be added here.

    Patch content inline or attached

    === End of sample patch email message ===

    === Notes for sample patch email ===

    * The first line of commit message is taken from the email's subject
      line following [PATCH]. The remaining portion of the commit message
      is the email's content until the '---' line.
    * git format-patch is one way to create this format

    === Definitions for sample patch email ===

    * "CodeModule" is a short idenfier for the affected code.  For
      example MdePkg, or MdeModulePkg UsbBusDxe.
    * "Brief-single-line-summary" is a short summary of the change.
    * The entire first line should be less than ~70 characters.
    * "Full-commit-message" a verbose multiple line comment describing
      the change.  Each line should be less than ~70 characters.
    * "Contributed-under" explicitely states that the contribution is
      made under the terms of the contribtion agreement.  This
      agreement is included below in this document.
    * "Signed-off-by" is the contributor's signature identifying them
      by their real/legal name and their email address.

    ========================================
    = TianoCore Contribution Agreement 1.0 =
    ========================================

    INTEL CORPORATION ("INTEL") MAKES AVAILABLE SOFTWARE, DOCUMENTATION,
    INFORMATION AND/OR OTHER MATERIALS FOR USE IN THE TIANOCORE OPEN SOURCE
    PROJECT (COLLECTIVELY "CONTENT"). USE OF THE CONTENT IS GOVERNED BY THE
    TERMS AND CONDITIONS OF THIS AGREEMENT BETWEEN YOU AND INTEL AND/OR THE
    TERMS AND CONDITIONS OF LICENSE AGREEMENTS OR NOTICES INDICATED OR
    REFERENCED BELOW. BY USING THE CONTENT, YOU AGREE THAT YOUR USE OF THE
    CONTENT IS GOVERNED BY THIS AGREEMENT AND/OR THE TERMS AND CONDITIONS
    OF ANY APPLICABLE LICENSE AGREEMENTS OR NOTICES INDICATED OR REFERENCED
    BELOW. IF YOU DO NOT AGREE TO THE TERMS AND CONDITIONS OF THIS
    AGREEMENT AND THE TERMS AND CONDITIONS OF ANY APPLICABLE LICENSE
    AGREEMENTS OR NOTICES INDICATED OR REFERENCED BELOW, THEN YOU MAY NOT
    USE THE CONTENT.

    Unless otherwise indicated, all Content made available on the TianoCore
    site is provided to you under the terms and conditions of the BSD
    License ("BSD"). A copy of the BSD License is available at
    http://opensource.org/licenses/bsd-license.php
    or when applicable, in the associated License.txt file.

    Certain other content may be made available under other licenses as
    indicated in or with such Content. (For example, in a License.txt file.)

    You accept and agree to the following terms and conditions for Your
    present and future Contributions submitted to TianoCore site. Except
    for the license granted to Intel hereunder, You reserve all right,
    title, and interest in and to Your Contributions.

    == SECTION 1: Definitions ==
    * "You" or "Contributor" shall mean the copyright owner or legal
      entity authorized by the copyright owner that is making a
      Contribution hereunder. All other entities that control, are
      controlled by, or are under common control with that entity are
      considered to be a single Contributor. For the purposes of this
      definition, "control" means (i) the power, direct or indirect, to
      cause the direction or management of such entity, whether by
      contract or otherwise, or (ii) ownership of fifty percent (50%)
      or more of the outstanding shares, or (iii) beneficial ownership
      of such entity.
    * "Contribution" shall mean any original work of authorship,
      including any modifications or additions to an existing work,
      that is intentionally submitted by You to the TinaoCore site for
      inclusion in, or documentation of, any of the Content. For the
      purposes of this definition, "submitted" means any form of
      electronic, verbal, or written communication sent to the
      TianoCore site or its representatives, including but not limited
      to communication on electronic mailing lists, source code
      control systems, and issue tracking systems that are managed by,
      or on behalf of, the TianoCore site for the purpose of
      discussing and improving the Content, but excluding
      communication that is conspicuously marked or otherwise
      designated in writing by You as "Not a Contribution."

    == SECTION 2: License for Contributions ==
    * Contributor hereby agrees that redistribution and use of the
      Contribution in source and binary forms, with or without
      modification, are permitted provided that the following
      conditions are met:
    ** Redistributions of source code must retain the Contributor's
       copyright notice, this list of conditions and the following
       disclaimer.
    ** Redistributions in binary form must reproduce the Contributor's
       copyright notice, this list of conditions and the following
       disclaimer in the documentation and/or other materials provided
       with the distribution.
    * Disclaimer. None of the names of Contributor, Intel, or the names
      of their respective contributors may be used to endorse or
      promote products derived from this software without specific
      prior written permission.
    * Contributor grants a license (with the right to sublicense) under
      claims of Contributor's patents that Contributor can license that
      are infringed by the Contribution (as delivered by Contributor) to
      make, use, distribute, sell, offer for sale, and import the
      Contribution and derivative works thereof solely to the minimum
      extent necessary for licensee to exercise the granted copyright
      license; this patent license applies solely to those portions of
      the Contribution that are unmodified. No hardware per se is
      licensed.
    * EXCEPT AS EXPRESSLY SET FORTH IN SECTION 3 BELOW, THE
      CONTRIBUTION IS PROVIDED BY THE CONTRIBUTOR "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. IN NO EVENT SHALL THE
      CONTRIBUTOR 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 THE
      CONTRIBUTION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
      DAMAGE.

    == SECTION 3: Representations ==
    * You represent that You are legally entitled to grant the above
      license. If your employer(s) has rights to intellectual property
      that You create that includes Your Contributions, You represent
      that You have received permission to make Contributions on behalf
      of that employer, that Your employer has waived such rights for
      Your Contributions.
    * You represent that each of Your Contributions is Your original
      creation (see Section 4 for submissions on behalf of others).
      You represent that Your Contribution submissions include complete
      details of any third-party license or other restriction
      (including, but not limited to, related patents and trademarks)
      of which You are personally aware and which are associated with
      any part of Your Contributions.

    == SECTION 4: Third Party Contributions ==
    * Should You wish to submit work that is not Your original creation,
      You may submit it to TianoCore site separately from any
      Contribution, identifying the complete details of its source
      and of any license or other restriction (including, but not
      limited to, related patents, trademarks, and license agreements)
      of which You are personally aware, and conspicuously marking the
      work as "Submitted on behalf of a third-party: [named here]".

    == SECTION 5: Miscellaneous ==
    * Applicable Laws. Any claims arising under or relating to this
      Agreement shall be governed by the internal substantive laws of
      the State of Delaware or federal courts located in Delaware,
      without regard to principles of conflict of laws.
    * Language. This Agreement is in the English language only, which
      language shall be controlling in all respects, and all versions
      of this Agreement in any other language shall be for accommodation
      only and shall not be binding. All communications and notices made
      or given pursuant to this Agreement, and all documentation and
      support to be provided, unless otherwise noted, shall be in the
      English language.
--------------------------------------------------------------------------------