diff --git a/encoding/tanya/encoding/ascii.d b/encoding/tanya/encoding/ascii.d
index 6498547..f09da56 100644
--- a/encoding/tanya/encoding/ascii.d
+++ b/encoding/tanya/encoding/ascii.d
@@ -8,7 +8,7 @@
  * ASCII is $(B A)merican $(B S)tandard $(B C)ode for $(B I)nformation
  * $(B I)nterchange.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/encoding/tanya/encoding/package.d b/encoding/tanya/encoding/package.d
index 9ec74d0..75642f0 100644
--- a/encoding/tanya/encoding/package.d
+++ b/encoding/tanya/encoding/package.d
@@ -5,7 +5,7 @@
 /**
  * This package provides tools to work with text encodings.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/meta/tanya/meta/metafunction.d b/meta/tanya/meta/metafunction.d
index 5c69fb3..eaa5111 100644
--- a/meta/tanya/meta/metafunction.d
+++ b/meta/tanya/meta/metafunction.d
@@ -9,7 +9,7 @@
  * It contains different algorithms for iterating, searching and modifying
  * template arguments.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/meta/tanya/meta/package.d b/meta/tanya/meta/package.d
index f06a166..377626d 100644
--- a/meta/tanya/meta/package.d
+++ b/meta/tanya/meta/package.d
@@ -9,7 +9,7 @@
  * to transform from one type to another. It has also different algorithms for
  * iterating, searching and modifying template arguments.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/meta/tanya/meta/trait.d b/meta/tanya/meta/trait.d
index db9b847..e607890 100644
--- a/meta/tanya/meta/trait.d
+++ b/meta/tanya/meta/trait.d
@@ -8,7 +8,7 @@
  * Templates in this module are used to obtain type information at compile
  * time.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/meta/tanya/meta/transform.d b/meta/tanya/meta/transform.d
index 260ee9e..08b1b34 100644
--- a/meta/tanya/meta/transform.d
+++ b/meta/tanya/meta/transform.d
@@ -9,7 +9,7 @@
  * types. They take some type as argument and return a different type after
  * perfoming the specified transformation.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/middle/tanya/memory/allocator.d b/middle/tanya/memory/allocator.d
index 96f3a29..bde97d2 100644
--- a/middle/tanya/memory/allocator.d
+++ b/middle/tanya/memory/allocator.d
@@ -8,7 +8,7 @@
  * Allocators are classes encapsulating memory allocation strategy. This allows
  * to decouple memory management from the algorithms and the data. 
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/middle/tanya/memory/lifetime.d b/middle/tanya/memory/lifetime.d
index 50a1b02..d5a028f 100644
--- a/middle/tanya/memory/lifetime.d
+++ b/middle/tanya/memory/lifetime.d
@@ -5,7 +5,7 @@
 /**
  * Lifetime management functions, types and related exceptions.
  *
- * Copyright: Eugene Wissner 2019.
+ * Copyright: Eugene Wissner 2019-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/middle/tanya/memory/mallocator.d b/middle/tanya/memory/mallocator.d
index 1103053..e4c46d3 100644
--- a/middle/tanya/memory/mallocator.d
+++ b/middle/tanya/memory/mallocator.d
@@ -6,7 +6,7 @@
  * Allocator based on $(D_PSYMBOL malloc), $(D_PSYMBOL realloc) and
  * $(D_PSYMBOL free).
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/middle/tanya/memory/mmappool.d b/middle/tanya/memory/mmappool.d
index b6cd7d0..50142ce 100644
--- a/middle/tanya/memory/mmappool.d
+++ b/middle/tanya/memory/mmappool.d
@@ -5,7 +5,7 @@
 /*
  * Native allocator.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/middle/tanya/memory/op.d b/middle/tanya/memory/op.d
index e5702a3..93a507f 100644
--- a/middle/tanya/memory/op.d
+++ b/middle/tanya/memory/op.d
@@ -5,7 +5,7 @@
 /**
  * Set of operations on memory blocks.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/middle/tanya/memory/package.d b/middle/tanya/memory/package.d
index d2c051a..12a122a 100644
--- a/middle/tanya/memory/package.d
+++ b/middle/tanya/memory/package.d
@@ -5,7 +5,7 @@
 /**
  * Dynamic memory management.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/middle/tanya/memory/smartref.d b/middle/tanya/memory/smartref.d
index ddde63b..7c14d4b 100644
--- a/middle/tanya/memory/smartref.d
+++ b/middle/tanya/memory/smartref.d
@@ -14,7 +14,7 @@
  *  $(LI Unique ownership)
  * )
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/os/tanya/os/error.d b/os/tanya/os/error.d
index c1b70c6..b271517 100644
--- a/os/tanya/os/error.d
+++ b/os/tanya/os/error.d
@@ -5,7 +5,7 @@
 /**
  * This module provides a portable way of using operating system error codes.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/os/tanya/os/package.d b/os/tanya/os/package.d
index 070ec44..399e975 100644
--- a/os/tanya/os/package.d
+++ b/os/tanya/os/package.d
@@ -6,7 +6,7 @@
  * This package provides platform-independent interfaces to operating system
  * functionality.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/algorithm/comparison.d b/source/tanya/algorithm/comparison.d
index aa4c34d..7aa7013 100644
--- a/source/tanya/algorithm/comparison.d
+++ b/source/tanya/algorithm/comparison.d
@@ -5,7 +5,7 @@
 /**
  * Algorithms for comparing values.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/algorithm/iteration.d b/source/tanya/algorithm/iteration.d
index 0b1a31c..7526df8 100644
--- a/source/tanya/algorithm/iteration.d
+++ b/source/tanya/algorithm/iteration.d
@@ -11,7 +11,7 @@
  * All algorithms in this module are lazy, they request the next element of the
  * original range on demand.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/algorithm/mutation.d b/source/tanya/algorithm/mutation.d
index cf44f18..e337e10 100644
--- a/source/tanya/algorithm/mutation.d
+++ b/source/tanya/algorithm/mutation.d
@@ -5,7 +5,7 @@
 /**
  * Algorithms that modify its arguments.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/algorithm/package.d b/source/tanya/algorithm/package.d
index e64eff0..5ebe268 100644
--- a/source/tanya/algorithm/package.d
+++ b/source/tanya/algorithm/package.d
@@ -5,7 +5,7 @@
 /**
  * Collection of generic algorithms.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/algorithm/searching.d b/source/tanya/algorithm/searching.d
index dd5f4c9..63e870f 100644
--- a/source/tanya/algorithm/searching.d
+++ b/source/tanya/algorithm/searching.d
@@ -5,7 +5,7 @@
 /**
  * Searching algorithms.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/event/epoll.d b/source/tanya/async/event/epoll.d
index 291950e..93ba727 100644
--- a/source/tanya/async/event/epoll.d
+++ b/source/tanya/async/event/epoll.d
@@ -5,7 +5,7 @@
 /**
  * Event loop implementation for Linux.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/event/iocp.d b/source/tanya/async/event/iocp.d
index d7b782d..edcd596 100644
--- a/source/tanya/async/event/iocp.d
+++ b/source/tanya/async/event/iocp.d
@@ -5,7 +5,7 @@
 /**
  * Event loop implementation for Windows.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/event/kqueue.d b/source/tanya/async/event/kqueue.d
index 563601a..b3c1826 100644
--- a/source/tanya/async/event/kqueue.d
+++ b/source/tanya/async/event/kqueue.d
@@ -5,7 +5,7 @@
 /*
  * Event loop implementation for *BSD.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/event/selector.d b/source/tanya/async/event/selector.d
index 5adc921..17554fb 100644
--- a/source/tanya/async/event/selector.d
+++ b/source/tanya/async/event/selector.d
@@ -5,7 +5,7 @@
 /*
  * This module contains base implementations for reactor event loops.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/iocp.d b/source/tanya/async/iocp.d
index 26c99fe..6b73d57 100644
--- a/source/tanya/async/iocp.d
+++ b/source/tanya/async/iocp.d
@@ -7,7 +7,7 @@
  *
  * Note: Available only on Windows.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/loop.d b/source/tanya/async/loop.d
index 6a79b4b..c496598 100644
--- a/source/tanya/async/loop.d
+++ b/source/tanya/async/loop.d
@@ -62,7 +62,7 @@
  * }
  * ---
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/package.d b/source/tanya/async/package.d
index ef30b2d..18f361e 100644
--- a/source/tanya/async/package.d
+++ b/source/tanya/async/package.d
@@ -5,7 +5,7 @@
 /**
  * This package provides asynchronous capabilities.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/protocol.d b/source/tanya/async/protocol.d
index 035afaa..4a1b72c 100644
--- a/source/tanya/async/protocol.d
+++ b/source/tanya/async/protocol.d
@@ -9,7 +9,7 @@
  * When an event from the network arrives, a protocol method gets
  * called and can respond to the event.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/transport.d b/source/tanya/async/transport.d
index a536e4b..be8c85d 100644
--- a/source/tanya/async/transport.d
+++ b/source/tanya/async/transport.d
@@ -6,7 +6,7 @@
  * This module contains transports which are responsible for data dilvery
  * between two parties of an asynchronous communication.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/async/watcher.d b/source/tanya/async/watcher.d
index a16fb90..1895898 100644
--- a/source/tanya/async/watcher.d
+++ b/source/tanya/async/watcher.d
@@ -5,7 +5,7 @@
 /**
  * Watchers register user's interest in some event.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/bitmanip.d b/source/tanya/bitmanip.d
index c4526d8..22fdd74 100644
--- a/source/tanya/bitmanip.d
+++ b/source/tanya/bitmanip.d
@@ -5,7 +5,7 @@
 /**
  * Bit manipulation.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/container/array.d b/source/tanya/container/array.d
index 8e4a878..614020b 100644
--- a/source/tanya/container/array.d
+++ b/source/tanya/container/array.d
@@ -5,7 +5,7 @@
 /**
  * Single-dimensioned array.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/container/buffer.d b/source/tanya/container/buffer.d
index c5e8327..5b613af 100644
--- a/source/tanya/container/buffer.d
+++ b/source/tanya/container/buffer.d
@@ -5,7 +5,7 @@
 /**
  * This module contains buffers designed for C-style input/output APIs.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/container/entry.d b/source/tanya/container/entry.d
index 6fd23de..82fa12d 100644
--- a/source/tanya/container/entry.d
+++ b/source/tanya/container/entry.d
@@ -5,7 +5,7 @@
 /*
  * Internal package used by containers that rely on entries/nodes.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/container/hashtable.d b/source/tanya/container/hashtable.d
index 349e681..15bb82d 100644
--- a/source/tanya/container/hashtable.d
+++ b/source/tanya/container/hashtable.d
@@ -5,7 +5,7 @@
 /**
  * Hash table.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/container/list.d b/source/tanya/container/list.d
index 20da47e..86b06b1 100644
--- a/source/tanya/container/list.d
+++ b/source/tanya/container/list.d
@@ -6,7 +6,7 @@
  * This module contains singly-linked ($(D_PSYMBOL SList)) and doubly-linked
  * ($(D_PSYMBOL DList)) lists.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/container/package.d b/source/tanya/container/package.d
index 1919b39..5edd72e 100644
--- a/source/tanya/container/package.d
+++ b/source/tanya/container/package.d
@@ -5,7 +5,7 @@
 /**
  * Abstract data types whose instances are collections of other objects.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/container/set.d b/source/tanya/container/set.d
index ae0a0fd..2c80f0c 100644
--- a/source/tanya/container/set.d
+++ b/source/tanya/container/set.d
@@ -6,7 +6,7 @@
  * This module implements a $(D_PSYMBOL Set) container that stores unique
  * values without any particular order.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/container/string.d b/source/tanya/container/string.d
index 383ee7c..d65c027 100644
--- a/source/tanya/container/string.d
+++ b/source/tanya/container/string.d
@@ -17,7 +17,7 @@
  * Internally $(D_PSYMBOL String) is represented by a sequence of
  * $(D_KEYWORD char)s.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/conv.d b/source/tanya/conv.d
index a49d4db..5a7b971 100644
--- a/source/tanya/conv.d
+++ b/source/tanya/conv.d
@@ -5,7 +5,7 @@
 /**
  * This module provides functions for converting between different types.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/format.d b/source/tanya/format.d
index aa1c41f..12bb8e6 100644
--- a/source/tanya/format.d
+++ b/source/tanya/format.d
@@ -38,7 +38,7 @@
  *
  * More advanced formatting is currently not implemented.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/hash/lookup.d b/source/tanya/hash/lookup.d
index 94ec957..a4fd55a 100644
--- a/source/tanya/hash/lookup.d
+++ b/source/tanya/hash/lookup.d
@@ -5,7 +5,7 @@
 /**
  * Non-cryptographic, lookup hash functions.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/hash/package.d b/source/tanya/hash/package.d
index 100bd90..b109f48 100644
--- a/source/tanya/hash/package.d
+++ b/source/tanya/hash/package.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /**
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/math/nbtheory.d b/source/tanya/math/nbtheory.d
index 6f9fb53..3515705 100644
--- a/source/tanya/math/nbtheory.d
+++ b/source/tanya/math/nbtheory.d
@@ -5,7 +5,7 @@
 /**
  * Number theory.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/math/package.d b/source/tanya/math/package.d
index ee39ca5..3228108 100644
--- a/source/tanya/math/package.d
+++ b/source/tanya/math/package.d
@@ -12,7 +12,7 @@
  * be found in its submodules. $(D_PSYMBOL tanya.math) doesn't import any
  * submodules publically, they should be imported explicitly.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/math/random.d b/source/tanya/math/random.d
index 8974d7b..80e9e12 100644
--- a/source/tanya/math/random.d
+++ b/source/tanya/math/random.d
@@ -5,7 +5,7 @@
 /**
  * Random number generator.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/net/iface.d b/source/tanya/net/iface.d
index cc846dd..681611b 100644
--- a/source/tanya/net/iface.d
+++ b/source/tanya/net/iface.d
@@ -5,7 +5,7 @@
 /**
  * Network interfaces.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/net/inet.d b/source/tanya/net/inet.d
index 6ea11a2..71467f2 100644
--- a/source/tanya/net/inet.d
+++ b/source/tanya/net/inet.d
@@ -5,7 +5,7 @@
 /**
  * Internet utilities.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/net/ip.d b/source/tanya/net/ip.d
index eff93ba..3afa50e 100644
--- a/source/tanya/net/ip.d
+++ b/source/tanya/net/ip.d
@@ -5,7 +5,7 @@
 /**
  * Internet Protocol implementation.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/net/package.d b/source/tanya/net/package.d
index 200c0e7..536715c 100644
--- a/source/tanya/net/package.d
+++ b/source/tanya/net/package.d
@@ -5,7 +5,7 @@
 /**
  * Network programming.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/net/uri.d b/source/tanya/net/uri.d
index 6e72b45..be48528 100644
--- a/source/tanya/net/uri.d
+++ b/source/tanya/net/uri.d
@@ -5,7 +5,7 @@
 /**
  * URL parser.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/network/package.d b/source/tanya/network/package.d
index 6437845..8c349ec 100644
--- a/source/tanya/network/package.d
+++ b/source/tanya/network/package.d
@@ -5,7 +5,7 @@
 /**
  * Network programming.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/network/socket.d b/source/tanya/network/socket.d
index 2bcab68..ffe5846 100644
--- a/source/tanya/network/socket.d
+++ b/source/tanya/network/socket.d
@@ -41,7 +41,7 @@
  * For an example of an asynchronous server refer to the documentation of the
  * $(D_PSYMBOL tanya.async.loop) module.
  *
- * Copyright: Eugene Wissner 2016-2019.
+ * Copyright: Eugene Wissner 2016-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/range/adapter.d b/source/tanya/range/adapter.d
index 8159005..1a739dc 100644
--- a/source/tanya/range/adapter.d
+++ b/source/tanya/range/adapter.d
@@ -5,7 +5,7 @@
 /**
  * Range adapters transform some data structures into ranges.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/range/array.d b/source/tanya/range/array.d
index aa1dc53..e412fa1 100644
--- a/source/tanya/range/array.d
+++ b/source/tanya/range/array.d
@@ -31,7 +31,7 @@
  * (D_INLINECODE dchar[])) are treated as any other normal array, they aren't
  * auto-decoded.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/range/package.d b/source/tanya/range/package.d
index c0c1eac..16ffe8c 100644
--- a/source/tanya/range/package.d
+++ b/source/tanya/range/package.d
@@ -6,7 +6,7 @@
  * This package contains generic functions and templates to be used with D
  * ranges.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/range/primitive.d b/source/tanya/range/primitive.d
index c4cb54a..06c653b 100644
--- a/source/tanya/range/primitive.d
+++ b/source/tanya/range/primitive.d
@@ -5,7 +5,7 @@
 /**
  * This module defines primitives for working with ranges.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/source/tanya/typecons.d b/source/tanya/typecons.d
index 1007246..26d4784 100644
--- a/source/tanya/typecons.d
+++ b/source/tanya/typecons.d
@@ -8,7 +8,7 @@
  * This module contains templates that allow to build new types from the
  * available ones.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/linux/syscall.d b/sys/tanya/sys/linux/syscall.d
index 5c90ea5..45c40a3 100644
--- a/sys/tanya/sys/linux/syscall.d
+++ b/sys/tanya/sys/linux/syscall.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /*
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/posix/ioctl.d b/sys/tanya/sys/posix/ioctl.d
index c206c89..0470ad7 100644
--- a/sys/tanya/sys/posix/ioctl.d
+++ b/sys/tanya/sys/posix/ioctl.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /*
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/posix/mman.d b/sys/tanya/sys/posix/mman.d
index 21266ea..8620e11 100644
--- a/sys/tanya/sys/posix/mman.d
+++ b/sys/tanya/sys/posix/mman.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /*
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/posix/net/if_.d b/sys/tanya/sys/posix/net/if_.d
index c9e3b86..b22f86c 100644
--- a/sys/tanya/sys/posix/net/if_.d
+++ b/sys/tanya/sys/posix/net/if_.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /*
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/posix/socket.d b/sys/tanya/sys/posix/socket.d
index 4f01a66..a36ea59 100644
--- a/sys/tanya/sys/posix/socket.d
+++ b/sys/tanya/sys/posix/socket.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /*
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/windows/def.d b/sys/tanya/sys/windows/def.d
index 5b7ab59..af2445a 100644
--- a/sys/tanya/sys/windows/def.d
+++ b/sys/tanya/sys/windows/def.d
@@ -16,7 +16,7 @@
  * defined here.
  * Also aliases for specific types like $(D_PSYMBOL SOCKET) are defined here.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/windows/ifdef.d b/sys/tanya/sys/windows/ifdef.d
index 084b5ca..354ccfd 100644
--- a/sys/tanya/sys/windows/ifdef.d
+++ b/sys/tanya/sys/windows/ifdef.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /**
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/windows/iphlpapi.d b/sys/tanya/sys/windows/iphlpapi.d
index 450b265..1effaf1 100644
--- a/sys/tanya/sys/windows/iphlpapi.d
+++ b/sys/tanya/sys/windows/iphlpapi.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /**
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/windows/package.d b/sys/tanya/sys/windows/package.d
index ef03e29..613de07 100644
--- a/sys/tanya/sys/windows/package.d
+++ b/sys/tanya/sys/windows/package.d
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /**
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/windows/winbase.d b/sys/tanya/sys/windows/winbase.d
index ba977eb..629f282 100644
--- a/sys/tanya/sys/windows/winbase.d
+++ b/sys/tanya/sys/windows/winbase.d
@@ -5,7 +5,7 @@
 /**
  * Definitions from winbase.h.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/sys/tanya/sys/windows/winsock2.d b/sys/tanya/sys/windows/winsock2.d
index 1c6a452..dabd978 100644
--- a/sys/tanya/sys/windows/winsock2.d
+++ b/sys/tanya/sys/windows/winsock2.d
@@ -5,7 +5,7 @@
 /**
  * Definitions from winsock2.h, ws2def.h and MSWSock.h.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/test/tanya/test/assertion.d b/test/tanya/test/assertion.d
index daef334..ae24fad 100644
--- a/test/tanya/test/assertion.d
+++ b/test/tanya/test/assertion.d
@@ -13,7 +13,7 @@
  * The functions can cause segmentation fault if the module is compiled
  * in production mode and the condition fails.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/test/tanya/test/package.d b/test/tanya/test/package.d
index f924833..a444a88 100644
--- a/test/tanya/test/package.d
+++ b/test/tanya/test/package.d
@@ -5,7 +5,7 @@
 /**
  * Test suite for $(D_KEYWORD unittest)-blocks.
  *
- * Copyright: Eugene Wissner 2017-2019.
+ * Copyright: Eugene Wissner 2017-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)
diff --git a/test/tanya/test/stub.d b/test/tanya/test/stub.d
index 8756f95..07f65c1 100644
--- a/test/tanya/test/stub.d
+++ b/test/tanya/test/stub.d
@@ -5,7 +5,7 @@
 /**
  * Range and generic type generators.
  *
- * Copyright: Eugene Wissner 2018-2019.
+ * Copyright: Eugene Wissner 2018-2020.
  * License: $(LINK2 https://www.mozilla.org/en-US/MPL/2.0/,
  *                  Mozilla Public License, v. 2.0).
  * Authors: $(LINK2 mailto:info@caraus.de, Eugene Wissner)