diff --git a/src/commonMain/kotlin/ru/landgrafhomyak/db/skeleton1/api/ApiVersion.kt b/src/commonMain/kotlin/ru/landgrafhomyak/db/skeleton1/api/ApiVersion.kt
new file mode 100644
index 0000000..f639509
--- /dev/null
+++ b/src/commonMain/kotlin/ru/landgrafhomyak/db/skeleton1/api/ApiVersion.kt
@@ -0,0 +1,24 @@
+package ru.landgrafhomyak.db.skeleton1.api
+
+import kotlin.jvm.JvmField
+
+public abstract class ApiVersion private constructor(public val str: String) {
+	override fun equals(other: Any?): Boolean {
+		if (other == null) return false
+		if (other !is ApiVersion) return false
+		return this === other
+	}
+
+	override fun toString(): String = "<db-skeleton api version '${this.str}'>"
+
+	override fun hashCode(): Int = this.str.hashCode()
+
+	public abstract fun isImplements(lower: ApiVersion): Boolean
+
+	public companion object {
+		@JvmField
+		public val V_0_0: ApiVersion = object : ApiVersion("0.0") {
+			override fun isImplements(lower: ApiVersion) = this === lower
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/commonMain/kotlin/ru/landgrafhomyak/db/skeleton1/api/DriverMetainfo.kt b/src/commonMain/kotlin/ru/landgrafhomyak/db/skeleton1/api/DriverMetainfo.kt
index edce1b4..f596c46 100644
--- a/src/commonMain/kotlin/ru/landgrafhomyak/db/skeleton1/api/DriverMetainfo.kt
+++ b/src/commonMain/kotlin/ru/landgrafhomyak/db/skeleton1/api/DriverMetainfo.kt
@@ -14,4 +14,5 @@ public interface DriverMetainfo<
 		@Suppress("unused") STATEMENT_CONSTRUCTOR__PARAMS_2_TABLE : RawStatement.Params2Table.Constructor<*>,
 		@Suppress("unused") OBJECT_OPERATIONS : ObjectOperations<*>
 		> {
+			public val apiVersion: ApiVersion
 }
\ No newline at end of file