diff --git a/.waf-tools/default-compiler-flags.py b/.waf-tools/default-compiler-flags.py
index 0bf48cc..53f0f8c 100644
--- a/.waf-tools/default-compiler-flags.py
+++ b/.waf-tools/default-compiler-flags.py
@@ -16,20 +16,21 @@
     errmsg = ''
     warnmsg = ''
     if cxx == 'gcc':
-        if ccver < (5, 3, 0):
+        if ccver < (7, 4, 0):
             errmsg = ('The version of gcc you are using is too old.\n'
-                      'The minimum supported gcc version is 7.4.0.')
-        elif ccver < (7, 4, 0):
-            warnmsg = ('Using a version of gcc older than 7.4.0 is not '
-                       'officially supported and may result in build failures.')
+                      'The minimum supported gcc version is 7.4.')
         conf.flags = GccFlags()
     elif cxx == 'clang':
-        if Utils.unversioned_sys_platform() == 'darwin' and ccver < (9, 0, 0):
-            errmsg = ('The version of Xcode you are using is too old.\n'
-                      'The minimum supported Xcode version is 9.0.')
-        elif ccver < (4, 0, 0):
+        if Utils.unversioned_sys_platform() == 'darwin':
+            if ccver < (10, 0, 0):
+                errmsg = ('The version of Xcode you are using is too old.\n'
+                          'The minimum supported Xcode version is 11.3.')
+            elif ccver < (11, 0, 0):
+                warnmsg = ('Using a version of Xcode older than 11.3 is not '
+                           'officially supported and may result in build failures.')
+        elif ccver < (5, 0, 0):
             errmsg = ('The version of clang you are using is too old.\n'
-                      'The minimum supported clang version is 4.0.')
+                      'The minimum supported clang version is 5.0.')
         conf.flags = ClangFlags()
     else:
         warnmsg = '%s compiler is unsupported' % cxx
@@ -181,7 +182,7 @@
         flags['CXXFLAGS'] += ['-fdiagnostics-color',
                               '-Wredundant-tags',
                               ]
-        if platform.machine() == 'armv7l' and self.getCompilerVersion(conf) >= (7, 1, 0):
+        if platform.machine() == 'armv7l':
             flags['CXXFLAGS'] += ['-Wno-psabi'] # Bug #5106
         return flags
 
@@ -190,7 +191,7 @@
         flags['CXXFLAGS'] += ['-fdiagnostics-color',
                               '-Wredundant-tags',
                               ]
-        if platform.machine() == 'armv7l' and self.getCompilerVersion(conf) >= (7, 1, 0):
+        if platform.machine() == 'armv7l':
             flags['CXXFLAGS'] += ['-Wno-psabi'] # Bug #5106
         return flags
 
diff --git a/INSTALL.md b/INSTALL.md
index 8e0cd24..fdd94e5 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -4,26 +4,26 @@
 
 ## Prerequisites
 
--  Install the [ndn-cxx](https://named-data.net/doc/ndn-cxx/current/) library and its prerequisites.
-   Please see [Getting Started with ndn-cxx](https://named-data.net/doc/ndn-cxx/current/INSTALL.html)
-   for how to install ndn-cxx.
-   Note: If you have installed ndn-cxx from a binary package, please make sure development headers
-   are installed (e.g., if using Ubuntu PPA, the `libndn-cxx-dev` package is needed).
+- Install the [ndn-cxx](https://named-data.net/doc/ndn-cxx/current/) library and its prerequisites.
+  Please see [Getting Started with ndn-cxx](https://named-data.net/doc/ndn-cxx/current/INSTALL.html)
+  for instructions.
+  All operating systems and compilers supported by ndn-cxx are also supported by ndn-tools.
 
-   Any operating system and compiler supported by ndn-cxx is supported by ndn-tools.
+  *Note*: If you have installed ndn-cxx from a binary package, please make sure the development
+  headers are installed (e.g., if using Ubuntu PPA, the `libndn-cxx-dev` package is needed).
 
--  `libpcap`
+- `libpcap`
 
-    Comes with the base system on macOS.
+  Comes with the base system on macOS.
 
-    On Ubuntu:
+  On Ubuntu:
 
-        sudo apt install libpcap-dev
+      sudo apt install libpcap-dev
 
-    On CentOS and Fedora:
+  On CentOS and Fedora:
 
-        sudo dnf config-manager --enable powertools  # CentOS only
-        sudo dnf install libpcap-devel
+      sudo dnf config-manager --enable powertools  # CentOS only
+      sudo dnf install libpcap-devel
 
 ## Build Steps
 
@@ -34,6 +34,6 @@
     ./waf
     sudo ./waf install
 
-To uninstall ndn-tools:
+To uninstall:
 
     sudo ./waf uninstall
diff --git a/tests/chunks/consumer.t.cpp b/tests/chunks/consumer.t.cpp
index e5a584f..d0a37fd 100644
--- a/tests/chunks/consumer.t.cpp
+++ b/tests/chunks/consumer.t.cpp
@@ -33,11 +33,7 @@
 #include <ndn-cxx/security/validator-null.hpp>
 #include <ndn-cxx/util/dummy-client-face.hpp>
 
-#if BOOST_VERSION >= 105900
 #include <boost/test/tools/output_test_stream.hpp>
-#else
-#include <boost/test/output_test_stream.hpp>
-#endif
 
 namespace ndn::chunks::tests {
 
diff --git a/tests/dump/ndndump.t.cpp b/tests/dump/ndndump.t.cpp
index 263691e..f3aa0df 100644
--- a/tests/dump/ndndump.t.cpp
+++ b/tests/dump/ndndump.t.cpp
@@ -29,11 +29,7 @@
 #include <netinet/udp.h>
 
 #include <boost/endian/conversion.hpp>
-#if BOOST_VERSION >= 105900
 #include <boost/test/tools/output_test_stream.hpp>
-#else
-#include <boost/test/output_test_stream.hpp>
-#endif
 
 #include <ndn-cxx/encoding/encoding-buffer.hpp>
 #include <ndn-cxx/lp/packet.hpp>
diff --git a/tests/global-configuration.cpp b/tests/global-configuration.cpp
index 49a330c..1d62e1e 100644
--- a/tests/global-configuration.cpp
+++ b/tests/global-configuration.cpp
@@ -59,12 +59,6 @@
   std::string m_home;
 };
 
-#if BOOST_VERSION >= 106500
 BOOST_TEST_GLOBAL_CONFIGURATION(GlobalConfiguration);
-#elif BOOST_VERSION >= 105900
-BOOST_GLOBAL_FIXTURE(GlobalConfiguration);
-#else
-BOOST_GLOBAL_FIXTURE(GlobalConfiguration)
-#endif
 
 } // namespace ndn::tests
diff --git a/tests/peek/ndnpeek.t.cpp b/tests/peek/ndnpeek.t.cpp
index b9631f7..30c305a 100644
--- a/tests/peek/ndnpeek.t.cpp
+++ b/tests/peek/ndnpeek.t.cpp
@@ -25,11 +25,7 @@
 #include <ndn-cxx/util/dummy-client-face.hpp>
 
 #include <boost/mpl/vector.hpp>
-#if BOOST_VERSION >= 105900
 #include <boost/test/tools/output_test_stream.hpp>
-#else
-#include <boost/test/output_test_stream.hpp>
-#endif
 
 namespace ndn::peek::tests {
 
diff --git a/wscript b/wscript
index f0c4d6d..92b710c 100644
--- a/wscript
+++ b/wscript
@@ -36,14 +36,10 @@
         conf.define('WITH_TESTS', 1)
 
     conf.check_boost(lib=boost_libs, mt=True)
-    if conf.env.BOOST_VERSION_NUMBER < 105800:
+    if conf.env.BOOST_VERSION_NUMBER < 106501:
         conf.fatal('The minimum supported version of Boost is 1.65.1.\n'
                    'Please upgrade your distribution or manually install a newer version of Boost.\n'
                    'For more information, see https://redmine.named-data.net/projects/nfd/wiki/Boost')
-    elif conf.env.BOOST_VERSION_NUMBER < 106501:
-        Logs.warn('WARNING: Using a version of Boost older than 1.65.1 is not officially supported and may not work.\n'
-                  'If you encounter any problems, please upgrade your distribution or manually install a newer version of Boost.\n'
-                  'For more information, see https://redmine.named-data.net/projects/nfd/wiki/Boost')
 
     conf.recurse('tools')