Update minimum Unity version to 2021.2

Author: gilzoide

Editor/Csv/SQLiteAssetCsvImporter.cs

@@ -21,11 +21,7 @@
  */
 using System.IO;
 using SQLite.Csv;
-#if UNITY_2020_2_OR_NEWER
 using UnityEditor.AssetImporters;
-#else
-using UnityEditor.Experimental.AssetImporters;
-#endif
 using UnityEngine;
 
 namespace SQLite.Editor.Csv

Editor/SQLiteAssetImporter.cs

@@ -20,11 +20,7 @@
  * SOFTWARE.
  */
 using System.IO;
-#if UNITY_2020_2_OR_NEWER
 using UnityEditor.AssetImporters;
-#else
-using UnityEditor.Experimental.AssetImporters;
-#endif
 using UnityEngine;
 
 namespace SQLite.Editor

Runtime/SQLiteConnectionExtensions.cs

@@ -24,10 +24,8 @@
 using System.IO;
 using System.Runtime.InteropServices;
 using SQLite.Csv;
-#if UNITY_2018_1_OR_NEWER
 using Unity.Collections;
 using Unity.Collections.LowLevel.Unsafe;
-#endif
 using UnityEngine;
 
 namespace SQLite
@@ -78,7 +76,6 @@ public static SQLiteConnection Deserialize(this SQLiteConnection db, byte[] buff
             return db;
         }
 
-#if UNITY_2018_1_OR_NEWER
         public static SQLiteConnection Deserialize(this SQLiteConnection db, NativeArray<byte> buffer, string schema = null, SQLite3.DeserializeFlags flags = SQLite3.DeserializeFlags.None)
         {
             return Deserialize(db, buffer, buffer.Length, schema, flags);
@@ -97,9 +94,7 @@ public static SQLiteConnection Deserialize(this SQLiteConnection db, NativeArray
             }
             return db;
         }
-#endif
 
-#if UNITY_2021_2_OR_NEWER
         public static SQLiteConnection Deserialize(this SQLiteConnection db, ReadOnlySpan<byte> buffer, string schema = null, SQLite3.DeserializeFlags flags = SQLite3.DeserializeFlags.None)
         {
             return Deserialize(db, buffer, buffer.Length, schema, flags);
@@ -121,7 +116,6 @@ public static SQLiteConnection Deserialize(this SQLiteConnection db, ReadOnlySpa
             }
             return db;
         }
-#endif
 
         /// <summary>
         /// Import a CSV data stream into the table named <paramref name="tableName"/> inside the database.

package.json

@@ -14,5 +14,6 @@
       "description": "Demonstrates a simple REPL for SQL statements.",
       "path": "Samples~/REPL"
     }
-  ]
-}
+  ],
+  "unity": "2021.2"
+}