Prepare release 0.8.1

Refs: #5250
Change-Id: I99931c1300cd752554aea764e9688d027b5de29e
diff --git a/docs/INSTALL.rst b/docs/INSTALL.rst
index 30dadaf..d1493dd 100644
--- a/docs/INSTALL.rst
+++ b/docs/INSTALL.rst
@@ -7,14 +7,10 @@
 ndn-cxx is built against a continuous integration system and has been tested on the
 following platforms:
 
-- Ubuntu 18.04
-- Ubuntu 20.04
-- Ubuntu 22.04
+- Ubuntu 18.04 / 20.04 / 22.04
 - Debian 11
 - CentOS Stream 9
-- macOS 10.15
-- macOS 11
-- macOS 12
+- macOS 10.15 / 11 / 12 / 13
 
 ndn-cxx is known to work on the following platforms, although they are not officially
 supported:
@@ -316,5 +312,5 @@
 
 .. code-block:: sh
 
-    CXXFLAGS="-O1 -g3" ./waf configure --debug --with-tests
-    ...
+    CXXFLAGS="-O1 -g3 -Wall" ./waf configure --debug --with-tests
+    ./waf
diff --git a/docs/RELEASE_NOTES.rst b/docs/RELEASE_NOTES.rst
deleted file mode 100644
index 04e2f84..0000000
--- a/docs/RELEASE_NOTES.rst
+++ /dev/null
@@ -1,4 +0,0 @@
-Release Notes
-=============
-
-.. include:: release-notes-latest.rst
diff --git a/docs/index.rst b/docs/index.rst
index 97bf2e4..3af74fe 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,26 +1,6 @@
 ndn-cxx: NDN C++ library with eXperimental eXtensions
 =====================================================
 
-**ndn-cxx** is a C++14 library implementing Named Data Networking (NDN) primitives
-that can be used to write various NDN applications. The library is currently being
-used by the following projects:
-
-* `NFD - NDN Forwarding Daemon <https://github.com/named-data/NFD>`_
-* `NLSR - Named-data Link-State Routing protocol <https://github.com/named-data/NLSR>`_
-* `ndn-tools - Essential NDN command-line tools <https://github.com/named-data/ndn-tools>`_
-* `repo-ng - Next generation of NDN repository <https://github.com/named-data/repo-ng>`_
-* `ChronoSync - Sync library for multiuser realtime applications <https://github.com/named-data/ChronoSync>`_
-* `PSync - Partial and full synchronization library <https://github.com/named-data/PSync>`_
-* `ndn-traffic-generator - Traffic generator for NDN <https://github.com/named-data/ndn-traffic-generator>`_
-* `NAC - Name-based Access Control <https://github.com/named-data/name-based-access-control>`_
-* `NDNS - Domain Name Service for NDN <https://github.com/named-data/ndns>`_
-
-Please submit any bugs or feature requests to the `ndn-cxx issue tracker
-<https://redmine.named-data.net/projects/ndn-cxx/issues>`_.
-
-ndn-cxx Documentation
----------------------
-
 .. toctree::
    :hidden:
    :maxdepth: 3
@@ -36,34 +16,60 @@
    :maxdepth: 1
 
    code-style
-   RELEASE_NOTES
+   release-notes
    releases
 
+**ndn-cxx** is a C++14 library implementing Named Data Networking (NDN) primitives
+that can be used to write various NDN applications. The library is currently being
+used by the following projects:
+
+* `NFD - NDN Forwarding Daemon <https://github.com/named-data/NFD>`_
+* `NLSR - Named-data Link-State Routing protocol <https://github.com/named-data/NLSR>`_
+* `ndn-tools - Essential NDN command-line tools <https://github.com/named-data/ndn-tools>`_
+* `ndn-svs - State Vector Sync library <https://github.com/named-data/ndn-svs>`_
+* `PSync - Partial and full Sync library <https://github.com/named-data/PSync>`_
+* `ChronoSync - Sync library for distributed real-time applications (deprecated) <https://github.com/named-data/ChronoSync>`_
+* `NAC - Name-based Access Control library <https://github.com/named-data/name-based-access-control>`_
+* `NDNCERT - NDN certificate management protocol <https://github.com/named-data/ndncert>`_
+* `repo-ng - NDN repository implementation in C++ (deprecated) <https://github.com/named-data/repo-ng>`_
+* `ndn-traffic-generator - Simple NDN traffic generator <https://github.com/named-data/ndn-traffic-generator>`_
+
+Documentation
+-------------
+
 - :doc:`INSTALL`
 - :doc:`examples`
 - :doc:`tutorials`
 
-   + `NDN Software Contributor's Guide <https://github.com/named-data/.github/blob/master/CONTRIBUTING.md>`_ (guide for newcomers to the NDN community of software generally)
    + :doc:`tutorials/utils-ndn-regex`
    + :doc:`tutorials/security-validator-config`
 
+- :doc:`manpages`
+- :doc:`release-notes`
+- :doc:`releases`
+
+For developers
+^^^^^^^^^^^^^^
+
+- `NDN Software Contributor's Guide <https://github.com/named-data/.github/blob/master/CONTRIBUTING.md>`__
+  (guide for newcomers to the NDN community of software)
+
 - :doc:`specs`
 
    + :doc:`specs/safe-bag`
    + :doc:`specs/signed-interest`
 
-- :doc:`manpages`
-
-Additional Documentation
-^^^^^^^^^^^^^^^^^^^^^^^^
-
-- `API documentation (doxygen) <doxygen/annotated.html>`_
+- `API documentation (doxygen) <doxygen/annotated.html>`__
 - :doc:`code-style`
-- :doc:`RELEASE_NOTES`
-- :doc:`releases`
+
+Issues
+------
+
+Please submit any bugs or feature requests to the
+`ndn-cxx issue tracker <https://redmine.named-data.net/projects/ndn-cxx/issues>`__.
 
 License
 -------
 
 ndn-cxx is an open source project licensed under the LGPL version 3. For more information about
-the license, refer to `COPYING.md <https://github.com/named-data/ndn-cxx/blob/master/COPYING.md>`_.
+the license, refer to `COPYING.md <https://github.com/named-data/ndn-cxx/blob/master/COPYING.md>`__.
diff --git a/docs/manpages.rst b/docs/manpages.rst
index 7f01d30..c378ea7 100644
--- a/docs/manpages.rst
+++ b/docs/manpages.rst
@@ -2,9 +2,9 @@
 =========
 
 .. toctree::
-    :glob:
-    :maxdepth: 1
+   :glob:
+   :maxdepth: 1
 
-    ndn-client.conf <manpages/ndn-client.conf>
-    ndn-log: ndn-cxx logging <manpages/ndn-log>
-    manpages/ndnsec*
+   ndn-client.conf <manpages/ndn-client.conf>
+   ndn-log: ndn-cxx logging <manpages/ndn-log>
+   manpages/ndnsec*
diff --git a/docs/release-notes-latest.rst b/docs/release-notes-latest.rst
deleted file mode 120000
index 34c2f6b..0000000
--- a/docs/release-notes-latest.rst
+++ /dev/null
@@ -1 +0,0 @@
-release-notes/release-notes-0.8.0.rst
\ No newline at end of file
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
new file mode 100644
index 0000000..1b8eeec
--- /dev/null
+++ b/docs/release-notes.rst
@@ -0,0 +1,4 @@
+Release Notes
+=============
+
+.. include:: release-notes/release-notes-0.8.1.rst
diff --git a/docs/release-notes/release-notes-0.8.0.rst b/docs/release-notes/release-notes-0.8.0.rst
index 752fa91..1cd0260 100644
--- a/docs/release-notes/release-notes-0.8.0.rst
+++ b/docs/release-notes/release-notes-0.8.0.rst
@@ -7,10 +7,10 @@
 ^^^^^^^^^^^^^^^^^
 
 - Flip default value of ``CanBePrefix`` to **false** (:issue:`4582`). This means that
-  Interests created without explicitly specifying ``CanBePrefix`` option, will be treaded
+  Interests created without explicitly specifying ``CanBePrefix`` option will be treated
   as Interests for exact Data name.
 
-- Change default name component encoding convention to typed (:issue:`5044`)
+- Change default name component encoding convention to ``TYPED`` (:issue:`5044`)
 
 - Update TLV-TYPE numbers to revision 3 of the `naming conventions`_
 
diff --git a/docs/release-notes/release-notes-0.8.1.rst b/docs/release-notes/release-notes-0.8.1.rst
new file mode 100644
index 0000000..ccba1ca
--- /dev/null
+++ b/docs/release-notes/release-notes-0.8.1.rst
@@ -0,0 +1,102 @@
+ndn-cxx version 0.8.1
+---------------------
+
+Release date: December 31, 2022
+
+.. note::
+   This is the last release of ndn-cxx to support the C++14 standard.
+   Future versions will require C++17 to build.
+
+Important changes and new features
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- The minimum build requirements have been increased as follows:
+
+  - Either GCC >= 7.4.0 or Clang >= 6.0 is required on Linux
+  - On macOS, Xcode 11.3 or later is recommended; older versions may still work but are not
+    officially supported
+  - Boost >= 1.65.1 and OpenSSL >= 1.1.1 are required on all platforms
+  - Sphinx 4.0 or later is required to build the documentation
+
+- CentOS Stream 9 is now officially supported; CentOS 8 has been dropped (:issue:`5181`)
+
+- macOS 12 (Monterey) and 13 (Ventura) running on arm64 are now officially supported
+  (:issue:`5135`)
+
+- Add the initial version of a :ndn-cxx:`Segmenter` API that applications can use to simplify
+  the process of chunking a large object into multiple signed Data packets (:issue:`5247`)
+
+- Add ``KeyChain::makeCertificate()`` to simplify the creation of certificates
+
+- Put the full certificate name in the ``KeyLocator`` field, instead of just the key name
+  (:issue:`5112`)
+
+- NFD management commands sent by :ndn-cxx:`nfd::Controller` now use the `new signed Interest
+  format <https://named-data.net/doc/NDN-packet-spec/0.3/signed-interest.html>`__ (:issue:`4804`)
+
+Improvements and bug fixes
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- Several enhancements and cleanups in :ndn-cxx:`Name` and :ndn-cxx:`Component` to make
+  the API more consistent and simpler to use (:issue:`5186`)
+
+- Various improvements in the validation framework and policies
+
+  - Avoid redundant TLV decoding during Interest validation
+  - Fix validation of signed Interests with malformed ``InterestSignatureInfo``
+  - More accurate validation error codes are returned in several cases
+  - Rename ``ValidationError::NO_SIGNATURE`` to ``MALFORMED_SIGNATURE``
+
+- Optimize parsing of PIB and TPM locators in :ndn-cxx:`KeyChain`
+
+- Major cleanup and modernization of PIB implementation
+
+- Gracefully handle invalid or unsupported public keys stored in the PIB
+
+- Fix OpenSSL 3.0 deprecation warnings in private key generation routines (:issue:`5154`)
+
+- Change ``Certificate::getPublicKey()`` to return a ``span``
+
+- Make :ndn-cxx:`Block` convertible to ``span<const uint8_t>``
+
+- Avoid assertion failure in :ndn-cxx:`OBufferStream` under certain conditions (:issue:`5240`)
+
+- Allow customizing the FaceId in :ndn-cxx:`DummyClientFace` (:issue:`5011`)
+
+- Improve pretty-printing of certificates, e.g., in ``ndnsec list`` and ``ndnsec cert-dump``
+
+- Relax restrictions on KeyId component type in ``ndnsec key-gen``
+
+- Fix handling of ``--without-osx-keychain`` configure option (:issue:`3338`)
+
+- Stop using the ``gold`` linker on Linux; prefer instead linking with ``lld`` if installed
+
+- Update waf build system to version 2.0.24
+
+- Various documentation improvements
+
+Deprecations
+^^^^^^^^^^^^
+
+- ``Name::append()`` overloads and :ndn-cxx:`Component` constructors that take a
+  ``const uint8_t*``. Use the ``span``-based overloads instead.
+
+- ``Component::fromImplicitSha256Digest()`` and ``Component::fromParametersSha256Digest()``.
+  Use one of the constructors directly instead.
+
+Removals
+^^^^^^^^
+
+- Obsolete TLV-TYPE definitions
+
+- Many previously deprecated functions that take raw byte buffers as ``uint8_t*`` + ``size_t``,
+  replaced by equivalent functions that take a ``span``. These include ``Data::setContent()``,
+  ``Interest::setApplicationParameters()``, ``Block::fromBuffer()``, ``verifySignature()``,
+  ``PublicKey::loadPkcs8()``, ``transform::bufferSource()``, ``random::generateSecureBytes()``,
+  ``printHex()``, ``toHex()``, and so on.
+
+- Previously deprecated ``Name::append(Block)`` overload
+
+- Previously deprecated ``Interest::setDefaultCanBePrefix()``
+
+- ``ndn::any`` and related functionality
diff --git a/docs/releases.rst b/docs/releases.rst
index 32356db..7f8905e 100644
--- a/docs/releases.rst
+++ b/docs/releases.rst
@@ -2,12 +2,18 @@
 ====================
 
 .. toctree::
-    :glob:
-    :hidden:
-    :maxdepth: 1
-    :reversed:
+   :glob:
+   :hidden:
+   :maxdepth: 1
+   :reversed:
 
-    release-notes/*
+   release-notes/*
+
+* **ndn-cxx version 0.8.1**
+  (:doc:`Release Notes <release-notes/release-notes-0.8.1>`, `Documentation <https://named-data.net/doc/ndn-cxx/0.8.1/>`__)
+
+  `src (git) <https://github.com/named-data/ndn-cxx/releases/tag/ndn-cxx-0.8.1>`__,
+  `src (tarball) <https://named-data.net/downloads/ndn-cxx-0.8.1.tar.bz2>`__ (`checksum <https://named-data.net/downloads/ndn-cxx-0.8.1.tar.bz2.sha256>`__)
 
 * **ndn-cxx version 0.8.0**
   (:doc:`Release Notes <release-notes/release-notes-0.8.0>`, `Documentation <https://named-data.net/doc/ndn-cxx/0.8.0/>`__)