diff --git a/cache_fallback_directories.py b/cache_fallback_directories.py
index 990301f4..086b8c76 100755
--- a/cache_fallback_directories.py
+++ b/cache_fallback_directories.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Copyright 2016-2017, Damian Johnson and The Tor Project
+# Copyright 2016-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/cache_manual.py b/cache_manual.py
index a3cd214b..30e202bb 100755
--- a/cache_manual.py
+++ b/cache_manual.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Copyright 2015-2017, Damian Johnson and The Tor Project
+# Copyright 2015-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/run_tests.py b/run_tests.py
index 69afd971..36296f7e 100755
--- a/run_tests.py
+++ b/run_tests.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/setup.py b/setup.py
index dc9e2937..87a766b5 100644
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 #
 # Release Checklist
diff --git a/stem/__init__.py b/stem/__init__.py
index 83a48903..853d704c 100644
--- a/stem/__init__.py
+++ b/stem/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/connection.py b/stem/connection.py
index aba11c5e..16882c70 100644
--- a/stem/connection.py
+++ b/stem/connection.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/control.py b/stem/control.py
index b78707c1..04cd0246 100644
--- a/stem/control.py
+++ b/stem/control.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/__init__.py b/stem/descriptor/__init__.py
index 273334e8..93e2d702 100644
--- a/stem/descriptor/__init__.py
+++ b/stem/descriptor/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/certificate.py b/stem/descriptor/certificate.py
index c3694e55..3cdf4163 100644
--- a/stem/descriptor/certificate.py
+++ b/stem/descriptor/certificate.py
@@ -1,4 +1,4 @@
-# Copyright 2017, Damian Johnson and The Tor Project
+# Copyright 2017-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/export.py b/stem/descriptor/export.py
index 945c428a..f6d73ebb 100644
--- a/stem/descriptor/export.py
+++ b/stem/descriptor/export.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/extrainfo_descriptor.py b/stem/descriptor/extrainfo_descriptor.py
index 3d6770f7..a43b637a 100644
--- a/stem/descriptor/extrainfo_descriptor.py
+++ b/stem/descriptor/extrainfo_descriptor.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/hidden_service_descriptor.py b/stem/descriptor/hidden_service_descriptor.py
index 2e08b783..09b03d75 100644
--- a/stem/descriptor/hidden_service_descriptor.py
+++ b/stem/descriptor/hidden_service_descriptor.py
@@ -1,4 +1,4 @@
-# Copyright 2015-2017, Damian Johnson and The Tor Project
+# Copyright 2015-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/microdescriptor.py b/stem/descriptor/microdescriptor.py
index c99e3714..1ecd0c07 100644
--- a/stem/descriptor/microdescriptor.py
+++ b/stem/descriptor/microdescriptor.py
@@ -1,4 +1,4 @@
-# Copyright 2013-2017, Damian Johnson and The Tor Project
+# Copyright 2013-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/networkstatus.py b/stem/descriptor/networkstatus.py
index 3d3a33a9..5de91835 100644
--- a/stem/descriptor/networkstatus.py
+++ b/stem/descriptor/networkstatus.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/reader.py b/stem/descriptor/reader.py
index b4e6ab42..1c07cdae 100644
--- a/stem/descriptor/reader.py
+++ b/stem/descriptor/reader.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/remote.py b/stem/descriptor/remote.py
index 88215c57..d2a6867c 100644
--- a/stem/descriptor/remote.py
+++ b/stem/descriptor/remote.py
@@ -1,4 +1,4 @@
-# Copyright 2013-2017, Damian Johnson and The Tor Project
+# Copyright 2013-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/router_status_entry.py b/stem/descriptor/router_status_entry.py
index 398448c2..5b99ba0c 100644
--- a/stem/descriptor/router_status_entry.py
+++ b/stem/descriptor/router_status_entry.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/server_descriptor.py b/stem/descriptor/server_descriptor.py
index cfb3f710..eef507a5 100644
--- a/stem/descriptor/server_descriptor.py
+++ b/stem/descriptor/server_descriptor.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/descriptor/tordnsel.py b/stem/descriptor/tordnsel.py
index d8b2b424..b573b79c 100644
--- a/stem/descriptor/tordnsel.py
+++ b/stem/descriptor/tordnsel.py
@@ -1,4 +1,4 @@
-# Copyright 2013-2017, Damian Johnson and The Tor Project
+# Copyright 2013-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/exit_policy.py b/stem/exit_policy.py
index 4ef66666..3c13be7e 100644
--- a/stem/exit_policy.py
+++ b/stem/exit_policy.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/interpreter/__init__.py b/stem/interpreter/__init__.py
index f4ed151e..4c3ffea5 100644
--- a/stem/interpreter/__init__.py
+++ b/stem/interpreter/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2015-2017, Damian Johnson and The Tor Project
+# Copyright 2015-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/interpreter/arguments.py b/stem/interpreter/arguments.py
index 3160183d..db0dd488 100644
--- a/stem/interpreter/arguments.py
+++ b/stem/interpreter/arguments.py
@@ -1,4 +1,4 @@
-# Copyright 2015-2017, Damian Johnson and The Tor Project
+# Copyright 2015-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/interpreter/autocomplete.py b/stem/interpreter/autocomplete.py
index 1c483ccf..10444066 100644
--- a/stem/interpreter/autocomplete.py
+++ b/stem/interpreter/autocomplete.py
@@ -1,4 +1,4 @@
-# Copyright 2014-2017, Damian Johnson and The Tor Project
+# Copyright 2014-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/interpreter/commands.py b/stem/interpreter/commands.py
index d47cccdd..a281c085 100644
--- a/stem/interpreter/commands.py
+++ b/stem/interpreter/commands.py
@@ -1,4 +1,4 @@
-# Copyright 2014-2017, Damian Johnson and The Tor Project
+# Copyright 2014-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/interpreter/help.py b/stem/interpreter/help.py
index 6fb09178..dddb3b31 100644
--- a/stem/interpreter/help.py
+++ b/stem/interpreter/help.py
@@ -1,4 +1,4 @@
-# Copyright 2014-2017, Damian Johnson and The Tor Project
+# Copyright 2014-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/manual.py b/stem/manual.py
index c75bfce8..5e628ead 100644
--- a/stem/manual.py
+++ b/stem/manual.py
@@ -1,4 +1,4 @@
-# Copyright 2015-2017, Damian Johnson and The Tor Project
+# Copyright 2015-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/prereq.py b/stem/prereq.py
index 9f896a83..16437c23 100644
--- a/stem/prereq.py
+++ b/stem/prereq.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/process.py b/stem/process.py
index 3cab463b..2d3dfff6 100644
--- a/stem/process.py
+++ b/stem/process.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/response/__init__.py b/stem/response/__init__.py
index 362b8931..327be819 100644
--- a/stem/response/__init__.py
+++ b/stem/response/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/response/add_onion.py b/stem/response/add_onion.py
index 88de780f..60e77ae3 100644
--- a/stem/response/add_onion.py
+++ b/stem/response/add_onion.py
@@ -1,4 +1,4 @@
-# Copyright 2015-2017, Damian Johnson and The Tor Project
+# Copyright 2015-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 import stem.response
diff --git a/stem/response/authchallenge.py b/stem/response/authchallenge.py
index 94e406f1..43647982 100644
--- a/stem/response/authchallenge.py
+++ b/stem/response/authchallenge.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 import binascii
diff --git a/stem/response/events.py b/stem/response/events.py
index f1fc02dd..e8c8a6e0 100644
--- a/stem/response/events.py
+++ b/stem/response/events.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 import io
diff --git a/stem/response/getconf.py b/stem/response/getconf.py
index 2bbc6d46..0c62ba51 100644
--- a/stem/response/getconf.py
+++ b/stem/response/getconf.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 import stem.response
diff --git a/stem/response/getinfo.py b/stem/response/getinfo.py
index 0d3a0f07..03a2cf38 100644
--- a/stem/response/getinfo.py
+++ b/stem/response/getinfo.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 import stem.response
diff --git a/stem/response/mapaddress.py b/stem/response/mapaddress.py
index 7535e92b..417449b2 100644
--- a/stem/response/mapaddress.py
+++ b/stem/response/mapaddress.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 import stem.response
diff --git a/stem/response/protocolinfo.py b/stem/response/protocolinfo.py
index a4320b82..bf559310 100644
--- a/stem/response/protocolinfo.py
+++ b/stem/response/protocolinfo.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 import sys
diff --git a/stem/socket.py b/stem/socket.py
index bde68cc9..710ab657 100644
--- a/stem/socket.py
+++ b/stem/socket.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/__init__.py b/stem/util/__init__.py
index b206dc73..5ccd921a 100644
--- a/stem/util/__init__.py
+++ b/stem/util/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/conf.py b/stem/util/conf.py
index a902cae1..999d8196 100644
--- a/stem/util/conf.py
+++ b/stem/util/conf.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/connection.py b/stem/util/connection.py
index d68c6124..d989713a 100644
--- a/stem/util/connection.py
+++ b/stem/util/connection.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/enum.py b/stem/util/enum.py
index 958a80e2..7b628d68 100644
--- a/stem/util/enum.py
+++ b/stem/util/enum.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/log.py b/stem/util/log.py
index d2a6e5be..81fc88a6 100644
--- a/stem/util/log.py
+++ b/stem/util/log.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/proc.py b/stem/util/proc.py
index 3afdf162..6a316634 100644
--- a/stem/util/proc.py
+++ b/stem/util/proc.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/str_tools.py b/stem/util/str_tools.py
index bc0446fa..5066a5c8 100644
--- a/stem/util/str_tools.py
+++ b/stem/util/str_tools.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/system.py b/stem/util/system.py
index cec095ea..82891d7e 100644
--- a/stem/util/system.py
+++ b/stem/util/system.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/term.py b/stem/util/term.py
index 68fa8171..3c6fe73a 100644
--- a/stem/util/term.py
+++ b/stem/util/term.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/test_tools.py b/stem/util/test_tools.py
index c6e2b304..722398d0 100644
--- a/stem/util/test_tools.py
+++ b/stem/util/test_tools.py
@@ -1,4 +1,4 @@
-# Copyright 2015-2017, Damian Johnson and The Tor Project
+# Copyright 2015-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/util/tor_tools.py b/stem/util/tor_tools.py
index afb2e12e..b3db3712 100644
--- a/stem/util/tor_tools.py
+++ b/stem/util/tor_tools.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/stem/version.py b/stem/version.py
index 6af239b0..03eb549c 100644
--- a/stem/version.py
+++ b/stem/version.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/test/__init__.py b/test/__init__.py
index 2b52beb2..91b26921 100644
--- a/test/__init__.py
+++ b/test/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/test/arguments.py b/test/arguments.py
index 83197a70..accdf23e 100644
--- a/test/arguments.py
+++ b/test/arguments.py
@@ -1,4 +1,4 @@
-# Copyright 2015-2017, Damian Johnson and The Tor Project
+# Copyright 2015-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/test/network.py b/test/network.py
index 7a04efdb..dfb0a05e 100644
--- a/test/network.py
+++ b/test/network.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/test/output.py b/test/output.py
index c5a9efe9..02e7cf4f 100644
--- a/test/output.py
+++ b/test/output.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/test/require.py b/test/require.py
index 774e5f42..598576bf 100644
--- a/test/require.py
+++ b/test/require.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/test/runner.py b/test/runner.py
index fe01f74f..472002d5 100644
--- a/test/runner.py
+++ b/test/runner.py
@@ -1,4 +1,4 @@
-# Copyright 2011-2017, Damian Johnson and The Tor Project
+# Copyright 2011-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """
diff --git a/test/task.py b/test/task.py
index 2af92875..20841be5 100644
--- a/test/task.py
+++ b/test/task.py
@@ -1,4 +1,4 @@
-# Copyright 2012-2017, Damian Johnson and The Tor Project
+# Copyright 2012-2018, Damian Johnson and The Tor Project
 # See LICENSE for licensing information
 
 """