diff --git a/COPYING.md b/COPYING.md
index 084ab1f..496acdb 100644
--- a/COPYING.md
+++ b/COPYING.md
@@ -1,39 +1,4 @@
-ndn-cxx is licensed under the terms of the GNU Lesser General Public License,
-version 3 or later.
-
-ndn-cxx relies on third-party software, licensed under the following licenses:
-
-- The Boost libraries are licensed under the
-  [Boost Software License 1.0](https://www.boost.org/users/license.html)
-
-- OpenSSL is licensed under the
-  [Apache License 2.0](https://www.openssl.org/source/license.html)
-
-- scope-lite by Martin Moene is licensed under the
-  [Boost Software License 1.0](https://github.com/martinmoene/scope-lite/blob/master/LICENSE.txt)
-
-- span-lite by Martin Moene is licensed under the
-  [Boost Software License 1.0](https://github.com/martinmoene/span-lite/blob/master/LICENSE.txt)
-
-- SQLite is in the [public domain](https://www.sqlite.org/copyright.html)
-
-- The waf build system is licensed under the terms of the
-  [BSD license](https://github.com/named-data/ndn-cxx/blob/master/waf)
-
-The ndn-cxx library also relies on other third-party software with a GPL-incompatible
-free software license. The following libraries fall into the category of "System
-Libraries" under the GPL license definitions and are used in accordance with the GPL
-license exception for "System Libraries":
-
-- *(macOS platform only)* The macOS Security Framework is licensed under the
-  [Apple Public Source License 2.0](https://opensource.apple.com/apsl)
-
-The LGPL and GPL licenses are provided below in this file.  For more information
-about these licenses, see <https://www.gnu.org/licenses/>
-
---------------------------------------------------------------------------------
-
-### GNU LESSER GENERAL PUBLIC LICENSE
+# GNU GENERAL PUBLIC LICENSE
 
 Version 3, 29 June 2007
 
@@ -43,167 +8,7 @@
 Everyone is permitted to copy and distribute verbatim copies of this
 license document, but changing it is not allowed.
 
-This version of the GNU Lesser General Public License incorporates the
-terms and conditions of version 3 of the GNU General Public License,
-supplemented by the additional permissions listed below.
-
-#### 0. Additional Definitions.
-
-As used herein, "this License" refers to version 3 of the GNU Lesser
-General Public License, and the "GNU GPL" refers to version 3 of the
-GNU General Public License.
-
-"The Library" refers to a covered work governed by this License, other
-than an Application or a Combined Work as defined below.
-
-An "Application" is any work that makes use of an interface provided
-by the Library, but which is not otherwise based on the Library.
-Defining a subclass of a class defined by the Library is deemed a mode
-of using an interface provided by the Library.
-
-A "Combined Work" is a work produced by combining or linking an
-Application with the Library. The particular version of the Library
-with which the Combined Work was made is also called the "Linked
-Version".
-
-The "Minimal Corresponding Source" for a Combined Work means the
-Corresponding Source for the Combined Work, excluding any source code
-for portions of the Combined Work that, considered in isolation, are
-based on the Application, and not on the Linked Version.
-
-The "Corresponding Application Code" for a Combined Work means the
-object code and/or source code for the Application, including any data
-and utility programs needed for reproducing the Combined Work from the
-Application, but excluding the System Libraries of the Combined Work.
-
-#### 1. Exception to Section 3 of the GNU GPL.
-
-You may convey a covered work under sections 3 and 4 of this License
-without being bound by section 3 of the GNU GPL.
-
-#### 2. Conveying Modified Versions.
-
-If you modify a copy of the Library, and, in your modifications, a
-facility refers to a function or data to be supplied by an Application
-that uses the facility (other than as an argument passed when the
-facility is invoked), then you may convey a copy of the modified
-version:
-
--   a) under this License, provided that you make a good faith effort
-    to ensure that, in the event an Application does not supply the
-    function or data, the facility still operates, and performs
-    whatever part of its purpose remains meaningful, or
--   b) under the GNU GPL, with none of the additional permissions of
-    this License applicable to that copy.
-
-#### 3. Object Code Incorporating Material from Library Header Files.
-
-The object code form of an Application may incorporate material from a
-header file that is part of the Library. You may convey such object
-code under terms of your choice, provided that, if the incorporated
-material is not limited to numerical parameters, data structure
-layouts and accessors, or small macros, inline functions and templates
-(ten or fewer lines in length), you do both of the following:
-
--   a) Give prominent notice with each copy of the object code that
-    the Library is used in it and that the Library and its use are
-    covered by this License.
--   b) Accompany the object code with a copy of the GNU GPL and this
-    license document.
-
-#### 4. Combined Works.
-
-You may convey a Combined Work under terms of your choice that, taken
-together, effectively do not restrict modification of the portions of
-the Library contained in the Combined Work and reverse engineering for
-debugging such modifications, if you also do each of the following:
-
--   a) Give prominent notice with each copy of the Combined Work that
-    the Library is used in it and that the Library and its use are
-    covered by this License.
--   b) Accompany the Combined Work with a copy of the GNU GPL and this
-    license document.
--   c) For a Combined Work that displays copyright notices during
-    execution, include the copyright notice for the Library among
-    these notices, as well as a reference directing the user to the
-    copies of the GNU GPL and this license document.
--   d) Do one of the following:
-    -   0) Convey the Minimal Corresponding Source under the terms of
-        this License, and the Corresponding Application Code in a form
-        suitable for, and under terms that permit, the user to
-        recombine or relink the Application with a modified version of
-        the Linked Version to produce a modified Combined Work, in the
-        manner specified by section 6 of the GNU GPL for conveying
-        Corresponding Source.
-    -   1) Use a suitable shared library mechanism for linking with
-        the Library. A suitable mechanism is one that (a) uses at run
-        time a copy of the Library already present on the user's
-        computer system, and (b) will operate properly with a modified
-        version of the Library that is interface-compatible with the
-        Linked Version.
--   e) Provide Installation Information, but only if you would
-    otherwise be required to provide such information under section 6
-    of the GNU GPL, and only to the extent that such information is
-    necessary to install and execute a modified version of the
-    Combined Work produced by recombining or relinking the Application
-    with a modified version of the Linked Version. (If you use option
-    4d0, the Installation Information must accompany the Minimal
-    Corresponding Source and Corresponding Application Code. If you
-    use option 4d1, you must provide the Installation Information in
-    the manner specified by section 6 of the GNU GPL for conveying
-    Corresponding Source.)
-
-#### 5. Combined Libraries.
-
-You may place library facilities that are a work based on the Library
-side by side in a single library together with other library
-facilities that are not Applications and are not covered by this
-License, and convey such a combined library under terms of your
-choice, if you do both of the following:
-
--   a) Accompany the combined library with a copy of the same work
-    based on the Library, uncombined with any other library
-    facilities, conveyed under the terms of this License.
--   b) Give prominent notice with the combined library that part of it
-    is a work based on the Library, and explaining where to find the
-    accompanying uncombined form of the same work.
-
-#### 6. Revised Versions of the GNU Lesser General Public License.
-
-The Free Software Foundation may publish revised and/or new versions
-of the GNU Lesser General Public License from time to time. Such new
-versions will be similar in spirit to the present version, but may
-differ in detail to address new problems or concerns.
-
-Each version is given a distinguishing version number. If the Library
-as you received it specifies that a certain numbered version of the
-GNU Lesser General Public License "or any later version" applies to
-it, you have the option of following the terms and conditions either
-of that published version or of any later version published by the
-Free Software Foundation. If the Library as you received it does not
-specify a version number of the GNU Lesser General Public License, you
-may choose any version of the GNU Lesser General Public License ever
-published by the Free Software Foundation.
-
-If the Library as you received it specifies that a proxy can decide
-whether future versions of the GNU Lesser General Public License shall
-apply, that proxy's public statement of acceptance of any version is
-permanent authorization for you to choose that version for the
-Library.
-
---------------------------------------------------------------------------------
-
-### GNU GENERAL PUBLIC LICENSE
-
-Version 3, 29 June 2007
-
-Copyright (C) 2007 Free Software Foundation, Inc.
-<https://fsf.org/>
-
-Everyone is permitted to copy and distribute verbatim copies of this
-license document, but changing it is not allowed.
-
-### Preamble
+## Preamble
 
 The GNU General Public License is a free, copyleft license for
 software and other kinds of works.
@@ -268,9 +73,9 @@
 The precise terms and conditions for copying, distribution and
 modification follow.
 
-### TERMS AND CONDITIONS
+## TERMS AND CONDITIONS
 
-#### 0. Definitions.
+### 0. Definitions.
 
 "This License" refers to version 3 of the GNU General Public License.
 
@@ -310,7 +115,7 @@
 the interface presents a list of user commands or options, such as a
 menu, a prominent item in the list meets this criterion.
 
-#### 1. Source Code.
+### 1. Source Code.
 
 The "source code" for a work means the preferred form of the work for
 making modifications to it. "Object code" means any non-source form of
@@ -351,7 +156,7 @@
 The Corresponding Source for a work in source code form is that same
 work.
 
-#### 2. Basic Permissions.
+### 2. Basic Permissions.
 
 All rights granted under this License are granted for the term of
 copyright on the Program, and are irrevocable provided the stated
@@ -376,7 +181,7 @@
 conditions stated below. Sublicensing is not allowed; section 10 makes
 it unnecessary.
 
-#### 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+### 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
 
 No covered work shall be deemed part of an effective technological
 measure under any applicable law fulfilling obligations under article
@@ -392,7 +197,7 @@
 the work's users, your or third parties' legal rights to forbid
 circumvention of technological measures.
 
-#### 4. Conveying Verbatim Copies.
+### 4. Conveying Verbatim Copies.
 
 You may convey verbatim copies of the Program's source code as you
 receive it, in any medium, provided that you conspicuously and
@@ -405,7 +210,7 @@
 You may charge any price or no price for each copy that you convey,
 and you may offer support or warranty protection for a fee.
 
-#### 5. Conveying Modified Source Versions.
+### 5. Conveying Modified Source Versions.
 
 You may convey a work based on the Program, or the modifications to
 produce it from the Program, in the form of source code under the
@@ -440,7 +245,7 @@
 in an aggregate does not cause this License to apply to the other
 parts of the aggregate.
 
-#### 6. Conveying Non-Source Forms.
+### 6. Conveying Non-Source Forms.
 
 You may convey a covered work in object code form under the terms of
 sections 4 and 5, provided that you also convey the machine-readable
@@ -536,7 +341,7 @@
 source code form), and must require no special password or key for
 unpacking, reading or copying.
 
-#### 7. Additional Terms.
+### 7. Additional Terms.
 
 "Additional permissions" are terms that supplement the terms of this
 License by making exceptions from one or more of its conditions.
@@ -595,7 +400,7 @@
 form of a separately written license, or stated as exceptions; the
 above requirements apply either way.
 
-#### 8. Termination.
+### 8. Termination.
 
 You may not propagate or modify a covered work except as expressly
 provided under this License. Any attempt otherwise to propagate or
@@ -623,7 +428,7 @@
 reinstated, you do not qualify to receive new licenses for the same
 material under section 10.
 
-#### 9. Acceptance Not Required for Having Copies.
+### 9. Acceptance Not Required for Having Copies.
 
 You are not required to accept this License in order to receive or run
 a copy of the Program. Ancillary propagation of a covered work
@@ -634,7 +439,7 @@
 not accept this License. Therefore, by modifying or propagating a
 covered work, you indicate your acceptance of this License to do so.
 
-#### 10. Automatic Licensing of Downstream Recipients.
+### 10. Automatic Licensing of Downstream Recipients.
 
 Each time you convey a covered work, the recipient automatically
 receives a license from the original licensors, to run, modify and
@@ -659,7 +464,7 @@
 any patent claim is infringed by making, using, selling, offering for
 sale, or importing the Program or any portion of it.
 
-#### 11. Patents.
+### 11. Patents.
 
 A "contributor" is a copyright holder who authorizes use under this
 License of the Program or a work on which the Program is based. The
@@ -728,7 +533,7 @@
 any implied license or other defenses to infringement that may
 otherwise be available to you under applicable patent law.
 
-#### 12. No Surrender of Others' Freedom.
+### 12. No Surrender of Others' Freedom.
 
 If conditions are imposed on you (whether by court order, agreement or
 otherwise) that contradict the conditions of this License, they do not
@@ -741,7 +546,7 @@
 satisfy both those terms and this License would be to refrain entirely
 from conveying the Program.
 
-#### 13. Use with the GNU Affero General Public License.
+### 13. Use with the GNU Affero General Public License.
 
 Notwithstanding any other provision of this License, you have
 permission to link or combine any covered work with a work licensed
@@ -752,7 +557,7 @@
 section 13, concerning interaction through a network will apply to the
 combination as such.
 
-#### 14. Revised Versions of this License.
+### 14. Revised Versions of this License.
 
 The Free Software Foundation may publish revised and/or new versions
 of the GNU General Public License from time to time. Such new versions
@@ -778,7 +583,7 @@
 author or copyright holder as a result of your choosing to follow a
 later version.
 
-#### 15. Disclaimer of Warranty.
+### 15. Disclaimer of Warranty.
 
 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
 APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
@@ -790,7 +595,7 @@
 DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
 CORRECTION.
 
-#### 16. Limitation of Liability.
+### 16. Limitation of Liability.
 
 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
@@ -802,7 +607,7 @@
 TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
 PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 
-#### 17. Interpretation of Sections 15 and 16.
+### 17. Interpretation of Sections 15 and 16.
 
 If the disclaimer of warranty and limitation of liability provided
 above cannot be given local legal effect according to their terms,
@@ -813,7 +618,7 @@
 
 END OF TERMS AND CONDITIONS
 
-### How to Apply These Terms to Your New Programs
+## How to Apply These Terms to Your New Programs
 
 If you develop a new program, and you want it to be of the greatest
 possible use to the public, the best way to achieve this is to make it