diff --git a/src/driver/slbt_amain.c b/src/driver/slbt_amain.c
index 3f78e76..1acbebd 100644
--- a/src/driver/slbt_amain.c
+++ b/src/driver/slbt_amain.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/driver/slbt_driver_ctx.c b/src/driver/slbt_driver_ctx.c
index f8393ef..773e3b6 100644
--- a/src/driver/slbt_driver_ctx.c
+++ b/src/driver/slbt_driver_ctx.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/helper/slbt_archive_import.c b/src/helper/slbt_archive_import.c
index 6b861bc..b7b3fe0 100644
--- a/src/helper/slbt_archive_import.c
+++ b/src/helper/slbt_archive_import.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/helper/slbt_copy_file.c b/src/helper/slbt_copy_file.c
index 7e549d9..d7ed4c5 100644
--- a/src/helper/slbt_copy_file.c
+++ b/src/helper/slbt_copy_file.c
@@ -1,7 +1,7 @@
 
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/helper/slbt_dump_machine.c b/src/helper/slbt_dump_machine.c
index 1576b60..7ee7553 100644
--- a/src/helper/slbt_dump_machine.c
+++ b/src/helper/slbt_dump_machine.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/helper/slbt_realpath.c b/src/helper/slbt_realpath.c
index 6b48831..6bb98c1 100644
--- a/src/helper/slbt_realpath.c
+++ b/src/helper/slbt_realpath.c
@@ -1,7 +1,7 @@
 
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2020  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/argv/argv.h b/src/internal/argv/argv.h
index 5496ae8..20568e9 100644
--- a/src/internal/argv/argv.h
+++ b/src/internal/argv/argv.h
@@ -1,6 +1,6 @@
 /****************************************************************************/
 /*  argv.h: a thread-safe argument vector parser and usage screen generator */
-/*  Copyright (C) 2015--2018  Z. Gilboa                                     */
+/*  Copyright (C) 2015--2021  Z. Gilboa                                     */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL.          */
 /****************************************************************************/
 
diff --git a/src/internal/slibtool_dprintf_impl.c b/src/internal/slibtool_dprintf_impl.c
index 91641cd..434c96d 100644
--- a/src/internal/slibtool_dprintf_impl.c
+++ b/src/internal/slibtool_dprintf_impl.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_driver_impl.h b/src/internal/slibtool_driver_impl.h
index b538ebc..270e9d6 100644
--- a/src/internal/slibtool_driver_impl.h
+++ b/src/internal/slibtool_driver_impl.h
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_errinfo_impl.c b/src/internal/slibtool_errinfo_impl.c
index 84f019e..5b4291b 100644
--- a/src/internal/slibtool_errinfo_impl.c
+++ b/src/internal/slibtool_errinfo_impl.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_errinfo_impl.h b/src/internal/slibtool_errinfo_impl.h
index 1c3fb9f..366e067 100644
--- a/src/internal/slibtool_errinfo_impl.h
+++ b/src/internal/slibtool_errinfo_impl.h
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_lconf_impl.c b/src/internal/slibtool_lconf_impl.c
index 9cb86a4..2b893bb 100644
--- a/src/internal/slibtool_lconf_impl.c
+++ b/src/internal/slibtool_lconf_impl.c
@@ -1,7 +1,7 @@
 
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_libmeta_impl.c b/src/internal/slibtool_libmeta_impl.c
index 31d060d..58f582f 100644
--- a/src/internal/slibtool_libmeta_impl.c
+++ b/src/internal/slibtool_libmeta_impl.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_mapfile_impl.c b/src/internal/slibtool_mapfile_impl.c
index a084db8..5df006b 100644
--- a/src/internal/slibtool_mapfile_impl.c
+++ b/src/internal/slibtool_mapfile_impl.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_mkdir_impl.h b/src/internal/slibtool_mkdir_impl.h
index 7ad9530..018f5c3 100644
--- a/src/internal/slibtool_mkdir_impl.h
+++ b/src/internal/slibtool_mkdir_impl.h
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_objmeta_impl.c b/src/internal/slibtool_objmeta_impl.c
index f1a33d0..9d4902c 100644
--- a/src/internal/slibtool_objmeta_impl.c
+++ b/src/internal/slibtool_objmeta_impl.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_readlink_impl.h b/src/internal/slibtool_readlink_impl.h
index 3730b1e..19aafa2 100644
--- a/src/internal/slibtool_readlink_impl.h
+++ b/src/internal/slibtool_readlink_impl.h
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_spawn_impl.h b/src/internal/slibtool_spawn_impl.h
index cfdd779..d6b18cb 100644
--- a/src/internal/slibtool_spawn_impl.h
+++ b/src/internal/slibtool_spawn_impl.h
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/internal/slibtool_symlink_impl.c b/src/internal/slibtool_symlink_impl.c
index bb67623..bb38333 100644
--- a/src/internal/slibtool_symlink_impl.c
+++ b/src/internal/slibtool_symlink_impl.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/logic/slbt_exec_compile.c b/src/logic/slbt_exec_compile.c
index 2a407da..cbd0691 100644
--- a/src/logic/slbt_exec_compile.c
+++ b/src/logic/slbt_exec_compile.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/logic/slbt_exec_ctx.c b/src/logic/slbt_exec_ctx.c
index 02682cd..a170b45 100644
--- a/src/logic/slbt_exec_ctx.c
+++ b/src/logic/slbt_exec_ctx.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/logic/slbt_exec_execute.c b/src/logic/slbt_exec_execute.c
index 9966e4d..58bb65f 100644
--- a/src/logic/slbt_exec_execute.c
+++ b/src/logic/slbt_exec_execute.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/logic/slbt_exec_install.c b/src/logic/slbt_exec_install.c
index 885c650..4461d0b 100644
--- a/src/logic/slbt_exec_install.c
+++ b/src/logic/slbt_exec_install.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/logic/slbt_exec_link.c b/src/logic/slbt_exec_link.c
index e07a5e0..70b4d26 100644
--- a/src/logic/slbt_exec_link.c
+++ b/src/logic/slbt_exec_link.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/logic/slbt_exec_uninstall.c b/src/logic/slbt_exec_uninstall.c
index 0bfeaa3..0650232 100644
--- a/src/logic/slbt_exec_uninstall.c
+++ b/src/logic/slbt_exec_uninstall.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/output/slbt_output_config.c b/src/output/slbt_output_config.c
index cac0df9..5e34841 100644
--- a/src/output/slbt_output_config.c
+++ b/src/output/slbt_output_config.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/output/slbt_output_error.c b/src/output/slbt_output_error.c
index bedef83..4f780db 100644
--- a/src/output/slbt_output_error.c
+++ b/src/output/slbt_output_error.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/output/slbt_output_exec.c b/src/output/slbt_output_exec.c
index 6adceb6..1e16bbc 100644
--- a/src/output/slbt_output_exec.c
+++ b/src/output/slbt_output_exec.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/output/slbt_output_fdcwd.c b/src/output/slbt_output_fdcwd.c
index 5e1d6da..fda7076 100644
--- a/src/output/slbt_output_fdcwd.c
+++ b/src/output/slbt_output_fdcwd.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2020  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/output/slbt_output_features.c b/src/output/slbt_output_features.c
index a6276da..cf1cb73 100644
--- a/src/output/slbt_output_features.c
+++ b/src/output/slbt_output_features.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/
 
diff --git a/src/slibtool.c b/src/slibtool.c
index 96bde65..ed9453e 100644
--- a/src/slibtool.c
+++ b/src/slibtool.c
@@ -1,6 +1,6 @@
 /*******************************************************************/
 /*  slibtool: a skinny libtool implementation, written in C        */
-/*  Copyright (C) 2016--2018  Z. Gilboa                            */
+/*  Copyright (C) 2016--2021  Z. Gilboa                            */
 /*  Released under the Standard MIT License; see COPYING.SLIBTOOL. */
 /*******************************************************************/