[SC-77952] Update Delta Lake OSS licenses from 2020 to 2021

## What changes were proposed in this pull request? As the title says. ## How was this patch tested? Existing checks Author: Tathagata Das <tathagata.das1565@gmail.com> #22485 is resolved by tdas/SC-77952. GitOrigin-RevId: 85a17d069efe112989ac883c1395e2bbeebd9ae4
Omar-Saleh · May 24, 2021 · e36dc6b · e36dc6b
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diff --git a/LICENSE.txt b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (2020) The Delta Lake Project Authors.  All rights reserved.
+Copyright (2021) The Delta Lake Project Authors.  All rights reserved.
 
 
                                  Apache License

diff --git a/NOTICE.txt b/NOTICE.txt
@@ -1,5 +1,5 @@
 Delta Lake
-Copyright (2020) The Delta Lake Project Authors.
+Copyright (2021) The Delta Lake Project Authors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

diff --git a/build.sbt b/build.sbt
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/build/sbt b/build/sbt
@@ -23,7 +23,7 @@
 #
 
 #
-#  Copyright (2020) The Delta Lake Project Authors.
+#  Copyright (2021) The Delta Lake Project Authors.
 #  Licensed under the Apache License, Version 2.0 (the "License");
 #  you may not use this file except in compliance with the License.
 #  You may obtain a copy of the License at

diff --git a/contribs/src/main/scala/io/delta/storage/GCSLogStore.scala b/contribs/src/main/scala/io/delta/storage/GCSLogStore.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/contribs/src/main/scala/io/delta/storage/IBMCOSLogStore.scala b/contribs/src/main/scala/io/delta/storage/IBMCOSLogStore.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/contribs/src/main/scala/io/delta/storage/OracleCloudLogStore.scala b/contribs/src/main/scala/io/delta/storage/OracleCloudLogStore.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/contribs/src/test/scala/io/delta/storage/GCSLogStoreSuite.scala b/contribs/src/test/scala/io/delta/storage/GCSLogStoreSuite.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/contribs/src/test/scala/io/delta/storage/IBMCOSLogStoreSuite.scala b/contribs/src/test/scala/io/delta/storage/IBMCOSLogStoreSuite.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/contribs/src/test/scala/io/delta/storage/OracleCloudLogStoreSuite.scala b/contribs/src/test/scala/io/delta/storage/OracleCloudLogStoreSuite.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/antlr4/io/delta/sql/parser/DeltaSqlBase.g4 b/core/src/main/antlr4/io/delta/sql/parser/DeltaSqlBase.g4
@@ -21,7 +21,7 @@
  */
 
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/com/databricks/spark/util/DatabricksLogging.scala b/core/src/main/scala/com/databricks/spark/util/DatabricksLogging.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/exceptions/DeltaConcurrentExceptions.scala b/core/src/main/scala/io/delta/exceptions/DeltaConcurrentExceptions.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/implicits/package.scala b/core/src/main/scala/io/delta/implicits/package.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/sql/DeltaSparkSessionExtension.scala b/core/src/main/scala/io/delta/sql/DeltaSparkSessionExtension.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/sql/parser/DeltaSqlParser.scala b/core/src/main/scala/io/delta/sql/parser/DeltaSqlParser.scala
@@ -21,7 +21,7 @@
  */
 
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/storage/CloseableIterator.java b/core/src/main/scala/io/delta/storage/CloseableIterator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/storage/LogStore.java b/core/src/main/scala/io/delta/storage/LogStore.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/tables/DeltaColumnBuilder.scala b/core/src/main/scala/io/delta/tables/DeltaColumnBuilder.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/tables/DeltaMergeBuilder.scala b/core/src/main/scala/io/delta/tables/DeltaMergeBuilder.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/tables/DeltaTable.scala b/core/src/main/scala/io/delta/tables/DeltaTable.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/tables/DeltaTableBuilder.scala b/core/src/main/scala/io/delta/tables/DeltaTableBuilder.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/tables/execution/DeltaConvert.scala b/core/src/main/scala/io/delta/tables/execution/DeltaConvert.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/tables/execution/DeltaTableBuilderOptions.scala b/core/src/main/scala/io/delta/tables/execution/DeltaTableBuilderOptions.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/tables/execution/DeltaTableOperations.scala b/core/src/main/scala/io/delta/tables/execution/DeltaTableOperations.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/io/delta/tables/execution/VacuumTableCommand.scala b/core/src/main/scala/io/delta/tables/execution/VacuumTableCommand.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/DeltaDelete.scala b/core/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/DeltaDelete.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/DeltaUpdateTable.scala b/core/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/DeltaUpdateTable.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/deltaConstraints.scala b/core/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/deltaConstraints.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/deltaMerge.scala b/core/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/deltaMerge.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/ActiveOptimisticTransactionRule.scala b/core/src/main/scala/org/apache/spark/sql/delta/ActiveOptimisticTransactionRule.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/CharVarcharUtils.scala b/core/src/main/scala/org/apache/spark/sql/delta/CharVarcharUtils.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/Checkpoints.scala b/core/src/main/scala/org/apache/spark/sql/delta/Checkpoints.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/Checksum.scala b/core/src/main/scala/org/apache/spark/sql/delta/Checksum.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaAnalysis.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaAnalysis.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaConfig.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaConfig.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaErrors.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaErrors.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaFileFormat.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaFileFormat.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaHistoryManager.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaHistoryManager.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaLog.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaLog.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaLogFileIndex.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaLogFileIndex.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaOperations.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaOperations.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaOptions.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaOptions.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaTable.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaTable.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaTableIdentifier.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaTableIdentifier.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaTimeTravelSpec.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaTimeTravelSpec.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaUnsupportedOperationsCheck.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaUnsupportedOperationsCheck.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/DeltaViewHelper.scala b/core/src/main/scala/org/apache/spark/sql/delta/DeltaViewHelper.scala
@@ -21,7 +21,7 @@
  */
 
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/GeneratedColumn.scala b/core/src/main/scala/org/apache/spark/sql/delta/GeneratedColumn.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/MetadataCleanup.scala b/core/src/main/scala/org/apache/spark/sql/delta/MetadataCleanup.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/OptimisticTransaction.scala b/core/src/main/scala/org/apache/spark/sql/delta/OptimisticTransaction.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/PartitionFiltering.scala b/core/src/main/scala/org/apache/spark/sql/delta/PartitionFiltering.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/PreprocessTableDelete.scala b/core/src/main/scala/org/apache/spark/sql/delta/PreprocessTableDelete.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/PreprocessTableMerge.scala b/core/src/main/scala/org/apache/spark/sql/delta/PreprocessTableMerge.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/PreprocessTableUpdate.scala b/core/src/main/scala/org/apache/spark/sql/delta/PreprocessTableUpdate.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

diff --git a/core/src/main/scala/org/apache/spark/sql/delta/Snapshot.scala b/core/src/main/scala/org/apache/spark/sql/delta/Snapshot.scala
@@ -1,5 +1,5 @@
 /*
- * Copyright (2020) The Delta Lake Project Authors.
+ * Copyright (2021) The Delta Lake Project Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.