Update copyright year from 2020 to 2021
diff --git a/include/FreeRTOS.h b/include/FreeRTOS.h
index 2e4420f..bac77a3 100644
--- a/include/FreeRTOS.h
+++ b/include/FreeRTOS.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/StackMacros.h b/include/StackMacros.h
index 85c6dd0..3cacabb 100644
--- a/include/StackMacros.h
+++ b/include/StackMacros.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/atomic.h b/include/atomic.h
index 328c396..265514f 100644
--- a/include/atomic.h
+++ b/include/atomic.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/croutine.h b/include/croutine.h
index 904f2b2..f799b2f 100644
--- a/include/croutine.h
+++ b/include/croutine.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/deprecated_definitions.h b/include/deprecated_definitions.h
index b7df42a..eb9ff99 100644
--- a/include/deprecated_definitions.h
+++ b/include/deprecated_definitions.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/event_groups.h b/include/event_groups.h
index 6544cc6..58191f4 100644
--- a/include/event_groups.h
+++ b/include/event_groups.h
@@ -1,6 +1,6 @@
 /*
  * FreeRTOS Kernel <DEVELOPMENT BRANCH>
- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
  * this software and associated documentation files (the "Software"), to deal in
diff --git a/include/list.h b/include/list.h
index 792f13d..42badbe 100644
--- a/include/list.h
+++ b/include/list.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/message_buffer.h b/include/message_buffer.h
index ed4b324..54fc481 100644
--- a/include/message_buffer.h
+++ b/include/message_buffer.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/mpu_prototypes.h b/include/mpu_prototypes.h
index 36d6b08..7e46e73 100644
--- a/include/mpu_prototypes.h
+++ b/include/mpu_prototypes.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/mpu_wrappers.h b/include/mpu_wrappers.h
index 0e988d9..80037ee 100644
--- a/include/mpu_wrappers.h
+++ b/include/mpu_wrappers.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/portable.h b/include/portable.h
index c811705..f72b9b4 100644
--- a/include/portable.h
+++ b/include/portable.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/projdefs.h b/include/projdefs.h
index 8ba033a..db255a3 100644
--- a/include/projdefs.h
+++ b/include/projdefs.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/queue.h b/include/queue.h
index 1518ad7..4bef5b8 100644
--- a/include/queue.h
+++ b/include/queue.h
@@ -1,6 +1,6 @@
 /*
  * FreeRTOS Kernel <DEVELOPMENT BRANCH>
- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
  * this software and associated documentation files (the "Software"), to deal in
diff --git a/include/semphr.h b/include/semphr.h
index a858746..9002157 100644
--- a/include/semphr.h
+++ b/include/semphr.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/stack_macros.h b/include/stack_macros.h
index 7b4c698..c728988 100644
--- a/include/stack_macros.h
+++ b/include/stack_macros.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/stdint.readme b/include/stdint.readme
index 38bcda7..6679344 100644
--- a/include/stdint.readme
+++ b/include/stdint.readme
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/stream_buffer.h b/include/stream_buffer.h
index 0f07ed3..b612c5a 100644
--- a/include/stream_buffer.h
+++ b/include/stream_buffer.h
@@ -1,6 +1,6 @@
 /*

  * FreeRTOS Kernel <DEVELOPMENT BRANCH>

- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.

  *

  * Permission is hereby granted, free of charge, to any person obtaining a copy of

  * this software and associated documentation files (the "Software"), to deal in

diff --git a/include/task.h b/include/task.h
index 5d7598b..009cdac 100644
--- a/include/task.h
+++ b/include/task.h
@@ -1,6 +1,6 @@
 /*
  * FreeRTOS Kernel <DEVELOPMENT BRANCH>
- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
  * this software and associated documentation files (the "Software"), to deal in
diff --git a/include/timers.h b/include/timers.h
index 807f4a8..cb57a7e 100644
--- a/include/timers.h
+++ b/include/timers.h
@@ -1,6 +1,6 @@
 /*
  * FreeRTOS Kernel <DEVELOPMENT BRANCH>
- * Copyright (C) 2020 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ * Copyright (C) 2021 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of
  * this software and associated documentation files (the "Software"), to deal in