diff --git a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/annotations/CandidateForRemoval.kt b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/annotations/CandidateForRemoval.kt
deleted file mode 100644
index 5a7f4d3874..0000000000
--- a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/annotations/CandidateForRemoval.kt
+++ /dev/null
@@ -1,9 +0,0 @@
-package org.jetbrains.kotlinx.dataframe.annotations
-
-/**
- * Functions that can be replaced with other API, such as shortcuts without clean value,
- * or something not properly designed, and so will be considered to be removed from API.
- * If you see a function marked with it and think it should be kept, please let us know in the GitHub issue:
- * https://github.com/Kotlin/dataframe/issues/1028
- */
-internal annotation class CandidateForRemoval
diff --git a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/DataRowApi.kt b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/DataRowApi.kt
index 51e853be21..93bf39eb78 100644
--- a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/DataRowApi.kt
+++ b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/DataRowApi.kt
@@ -8,7 +8,6 @@ import org.jetbrains.kotlinx.dataframe.DataFrame
 import org.jetbrains.kotlinx.dataframe.DataRow
 import org.jetbrains.kotlinx.dataframe.RowExpression
 import org.jetbrains.kotlinx.dataframe.annotations.AccessApiOverload
-import org.jetbrains.kotlinx.dataframe.annotations.CandidateForRemoval
 import org.jetbrains.kotlinx.dataframe.annotations.DataSchema
 import org.jetbrains.kotlinx.dataframe.columns.ColumnReference
 import org.jetbrains.kotlinx.dataframe.impl.columnName
@@ -18,14 +17,22 @@ import org.jetbrains.kotlinx.dataframe.indices
 import org.jetbrains.kotlinx.dataframe.ncol
 import org.jetbrains.kotlinx.dataframe.nrow
 import org.jetbrains.kotlinx.dataframe.util.DEPRECATED_ACCESS_API
+import org.jetbrains.kotlinx.dataframe.util.MESSAGE_SHORTCUT
+import org.jetbrains.kotlinx.dataframe.util.IS_EMPTY_REPLACE
+import org.jetbrains.kotlinx.dataframe.util.IS_NOT_EMPTY_REPLACE
+import org.jetbrains.kotlinx.dataframe.util.GET_ROW_REPLACE
+import org.jetbrains.kotlinx.dataframe.util.GET_ROWS_ITERABLE_REPLACE
+import org.jetbrains.kotlinx.dataframe.util.GET_ROWS_RANGE_REPLACE
+import org.jetbrains.kotlinx.dataframe.util.GET_ROW_OR_NULL_REPLACE
 import kotlin.experimental.ExperimentalTypeInference
 import kotlin.reflect.KProperty
 import kotlin.reflect.KType
 
-@CandidateForRemoval
+@Deprecated(MESSAGE_SHORTCUT, ReplaceWith(IS_EMPTY_REPLACE), DeprecationLevel.WARNING)
 public fun AnyRow.isEmpty(): Boolean = owner.columns().all { it[index] == null }
 
-@CandidateForRemoval
+@Suppress("DEPRECATION_ERROR")
+@Deprecated(MESSAGE_SHORTCUT, ReplaceWith(IS_NOT_EMPTY_REPLACE), DeprecationLevel.WARNING)
 public fun AnyRow.isNotEmpty(): Boolean = !isEmpty()
 
 public inline fun <reified R> AnyRow.valuesOf(): List<R> = values().filterIsInstance<R>()
@@ -178,35 +185,50 @@ public fun AnyRow.columnNames(): List<String> = df().columnNames()
 
 public fun AnyRow.columnTypes(): List<KType> = df().columnTypes()
 
-@CandidateForRemoval
+@Suppress("DEPRECATION_ERROR")
+@Deprecated(MESSAGE_SHORTCUT, ReplaceWith(GET_ROW_REPLACE), DeprecationLevel.WARNING)
 public fun <T> DataRow<T>.getRow(index: Int): DataRow<T> = getRowOrNull(index)!!
 
-@CandidateForRemoval
+@Deprecated(MESSAGE_SHORTCUT, ReplaceWith(GET_ROWS_ITERABLE_REPLACE), DeprecationLevel.WARNING)
 public fun <T> DataRow<T>.getRows(indices: Iterable<Int>): DataFrame<T> = df().getRows(indices)
 
-@CandidateForRemoval
+@Deprecated(MESSAGE_SHORTCUT, ReplaceWith(GET_ROWS_RANGE_REPLACE), DeprecationLevel.WARNING)
 public fun <T> DataRow<T>.getRows(indices: IntRange): DataFrame<T> = df().getRows(indices)
 
-@CandidateForRemoval
+@Deprecated(MESSAGE_SHORTCUT, ReplaceWith(GET_ROW_OR_NULL_REPLACE), DeprecationLevel.WARNING)
 public fun <T> DataRow<T>.getRowOrNull(index: Int): DataRow<T>? {
     val df = df()
     return if (index >= 0 && index < df.nrow) df[index] else null
 }
 
+/**
+ * Returns the previous [row][DataRow] in the [DataFrame] relative to the current row.
+ * If the current row is the first row in the [DataFrame], it returns `null`.
+ *
+ * @return The previous [DataRow] if it exists, or `null` if the current row is the first in the [DataFrame].
+ */
 public fun <T> DataRow<T>.prev(): DataRow<T>? {
     val index = index()
     return if (index > 0) df()[index - 1] else null
 }
 
+/**
+ * Returns the next [row][DataRow] in the [DataFrame] relative to the current row.
+ * If the current row is the last row in the [DataFrame], it returns `null`.
+ *
+ * @return The previous [DataRow] if it exists, or `null` if the current row is the last in the [DataFrame].
+ */
 public fun <T> DataRow<T>.next(): DataRow<T>? {
     val index = index()
     val df = df()
     return if (index < df.nrow - 1) df[index + 1] else null
 }
 
+@Suppress("DEPRECATION_ERROR")
 public fun <T> DataRow<T>.relative(relativeIndices: Iterable<Int>): DataFrame<T> =
     getRows(relativeIndices.mapNotNull { (index + it).let { if (it >= 0 && it < df().rowsCount()) it else null } })
 
+@Suppress("DEPRECATION_ERROR")
 public fun <T> DataRow<T>.relative(relativeIndices: IntRange): DataFrame<T> =
     getRows(
         (relativeIndices.first + index).coerceIn(df().indices)..(relativeIndices.last + index).coerceIn(df().indices),
diff --git a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/copy.kt b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/copy.kt
index 01f4fb84ae..42b7ea62a1 100644
--- a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/copy.kt
+++ b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/copy.kt
@@ -1,10 +1,12 @@
 package org.jetbrains.kotlinx.dataframe.api
 
 import org.jetbrains.kotlinx.dataframe.DataFrame
-import org.jetbrains.kotlinx.dataframe.annotations.CandidateForRemoval
+import org.jetbrains.kotlinx.dataframe.util.MESSAGE_SHORTCUT
+import org.jetbrains.kotlinx.dataframe.util.COPY_REPLACE
+
 // region DataFrame
 
-@CandidateForRemoval
+@Deprecated(MESSAGE_SHORTCUT, ReplaceWith(COPY_REPLACE), DeprecationLevel.WARNING)
 public fun <T> DataFrame<T>.copy(): DataFrame<T> = columns().toDataFrame().cast()
 
 // endregion
diff --git a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/merge.kt b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/merge.kt
index 7a1ed49fc9..8760762763 100644
--- a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/merge.kt
+++ b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/merge.kt
@@ -90,6 +90,7 @@ public fun <T, C, R> Merge<T, C, R>.intoList(): List<R> =
 public fun <T, C, R> MergeWithTransform<T, C, R>.intoList(): List<R> =
     df.select(selector).rows().map { transform(it, it.values() as List<C>) }
 
+@Suppress("DEPRECATION_ERROR")
 public fun <T, C, R> MergeWithTransform<T, C, R>.into(path: ColumnPath): DataFrame<T> {
     // If target path exists, merge into temp path
     val mergePath = if (df.getColumnOrNull(path) != null) {
diff --git a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/move.kt b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/move.kt
index 1359db525a..3f6fed731e 100644
--- a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/move.kt
+++ b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/api/move.kt
@@ -6,7 +6,6 @@ import org.jetbrains.kotlinx.dataframe.ColumnSelector
 import org.jetbrains.kotlinx.dataframe.ColumnsSelector
 import org.jetbrains.kotlinx.dataframe.DataFrame
 import org.jetbrains.kotlinx.dataframe.annotations.AccessApiOverload
-import org.jetbrains.kotlinx.dataframe.annotations.CandidateForRemoval
 import org.jetbrains.kotlinx.dataframe.annotations.Interpretable
 import org.jetbrains.kotlinx.dataframe.annotations.Refine
 import org.jetbrains.kotlinx.dataframe.columns.ColumnGroup
@@ -407,9 +406,20 @@ public fun <T, C> MoveClause<T, C>.into(
     )
 
 /**
- * Move a single selected column to top level with a new name
+ * Moves the selected column, previously specified with [move],
+ * to the top level of the [DataFrame] and assigns it a new name.
+ *
+ * For more information, see {@include [DocumentationUrls.Move]}.
+ *
+ * ### Example:
+ * ```kotlin
+ * // Move "info"."salary" column to the top level with a new name "income"
+ * df.move { info.salary }.into("income")
+ * ```
+ *
+ * @param column The new [String] name of the column after the move.
+ * @return A new [DataFrame] with the column moved and renamed.
  */
-@CandidateForRemoval
 @Refine
 @Interpretable("MoveInto0")
 public fun <T, C> MoveClause<T, C>.into(column: String): DataFrame<T> = pathOf(column).let { path -> into { path } }
diff --git a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/impl/aggregation/modes/aggregateBy.kt b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/impl/aggregation/modes/aggregateBy.kt
index 77cf7848da..e48b97373d 100644
--- a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/impl/aggregation/modes/aggregateBy.kt
+++ b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/impl/aggregation/modes/aggregateBy.kt
@@ -2,34 +2,15 @@ package org.jetbrains.kotlinx.dataframe.impl.aggregation.modes
 
 import org.jetbrains.kotlinx.dataframe.DataColumn
 import org.jetbrains.kotlinx.dataframe.DataFrame
-import org.jetbrains.kotlinx.dataframe.DataFrameExpression
 import org.jetbrains.kotlinx.dataframe.DataRow
 import org.jetbrains.kotlinx.dataframe.RowExpression
-import org.jetbrains.kotlinx.dataframe.annotations.CandidateForRemoval
-import org.jetbrains.kotlinx.dataframe.api.GroupBy
-import org.jetbrains.kotlinx.dataframe.api.Grouped
 import org.jetbrains.kotlinx.dataframe.api.asSequence
-import org.jetbrains.kotlinx.dataframe.api.cast
 import org.jetbrains.kotlinx.dataframe.api.getOrNull
 import org.jetbrains.kotlinx.dataframe.columns.ColumnReference
-import org.jetbrains.kotlinx.dataframe.impl.aggregation.aggregateInternal
 import org.jetbrains.kotlinx.dataframe.impl.aggregation.aggregators.Aggregator
 import org.jetbrains.kotlinx.dataframe.impl.aggregation.aggregators.indexOfAggregationResult
-import org.jetbrains.kotlinx.dataframe.impl.namedValues
 import kotlin.reflect.typeOf
 
-@CandidateForRemoval
-internal fun <T> Grouped<T>.aggregateByOrNull(body: DataFrameExpression<T, DataRow<T>?>): DataFrame<T> {
-    require(this is GroupBy<*, T>)
-    val keyColumns = keys.columnNames().toSet()
-    return aggregateInternal {
-        val row = body(df, df)
-        row?.namedValues()?.forEach {
-            if (!keyColumns.contains(it.name)) yield(it)
-        }
-    }.cast()
-}
-
 /**
  * Selects the best matching value in the [sequence][values]
  * using the provided [Aggregator] `by` the provided [selector].
diff --git a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/util/deprecationMessages.kt b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/util/deprecationMessages.kt
index 933d5081e2..63409eaf24 100644
--- a/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/util/deprecationMessages.kt
+++ b/core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/util/deprecationMessages.kt
@@ -245,6 +245,14 @@ internal const val ADD_VARARG_COLUMNS_REPLACE = "this.addAll(*columns)"
 internal const val ADD_VARARG_FRAMES = "Deprecated in favor of `addAll(vararg)` to improve completion. $MESSAGE_1_1"
 internal const val ADD_VARARG_FRAMES_REPLACE = "this.addAll(*dataFrames)"
 
+internal const val IS_EMPTY_REPLACE = "values().all { it == null }"
+internal const val IS_NOT_EMPTY_REPLACE = "values().any { it != null }"
+internal const val GET_ROW_REPLACE = "df().getRow(index)"
+internal const val GET_ROWS_ITERABLE_REPLACE = "df().getRows(indices)"
+internal const val GET_ROWS_RANGE_REPLACE = "df().getRows(indices)"
+internal const val GET_ROW_OR_NULL_REPLACE = "df().getRowOrNull(index)"
+internal const val COPY_REPLACE = "columns().toDataFrame().cast()"
+
 // endregion
 
 // region keep across releases
diff --git a/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/api/constructors.kt b/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/api/constructors.kt
index a09b476532..351912ed47 100644
--- a/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/api/constructors.kt
+++ b/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/api/constructors.kt
@@ -87,6 +87,7 @@ class ConstructorsTests {
         col.type() shouldBe typeOf<AnyRow>()
         col.kind() shouldBe ColumnKind.Group
         col[0] shouldBe row
+        @Suppress("DEPRECATION_ERROR")
         col[1].isEmpty() shouldBe true
     }
 
@@ -103,7 +104,9 @@ class ConstructorsTests {
         col.type() shouldBe typeOf<AnyRow>()
         col.kind() shouldBe ColumnKind.Group
         col[0] shouldBe row
+        @Suppress("DEPRECATION_ERROR")
         col[1]!!.isEmpty() shouldBe true
+        @Suppress("DEPRECATION_ERROR")
         col[2]!!.isEmpty() shouldBe true
     }
 
diff --git a/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/statistics/sum.kt b/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/statistics/sum.kt
index aaafae2412..f27395f910 100644
--- a/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/statistics/sum.kt
+++ b/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/statistics/sum.kt
@@ -117,6 +117,7 @@ class SumTests {
         }
     }
 
+    @Suppress("DEPRECATION_ERROR")
     @Test
     fun `unknown number type`() {
         columnOf(1.toBigDecimal(), 2.toBigDecimal()).toDataFrame()
diff --git a/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTests.kt b/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTests.kt
index 68eba9ec32..25f157eb0b 100644
--- a/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTests.kt
+++ b/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTests.kt
@@ -2464,6 +2464,7 @@ class DataFrameTests : BaseTest() {
         df.comparableNothing.valuesAreComparable() shouldBe false
     }
 
+    @Suppress("DEPRECATION_ERROR")
     // https://github.com/Kotlin/dataframe/pull/1077#discussion_r1981352374
     @Test
     fun `values are comparable difficult`() {
diff --git a/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTreeTests.kt b/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTreeTests.kt
index e138f112ea..aa4d6e220d 100644
--- a/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTreeTests.kt
+++ b/core/src/test/kotlin/org/jetbrains/kotlinx/dataframe/testSets/person/DataFrameTreeTests.kt
@@ -266,7 +266,7 @@ class DataFrameTreeTests : BaseTest() {
 
     @Test
     fun `move`() {
-        val actual = typed2.move { nameAndCity.name }.into("name")
+        val actual = typed2.move { nameAndCity.name }.into { pathOf("name") }
         actual.columnNames() shouldBe listOf("nameAndCity", "name", "age", "weight")
         actual.getColumnGroup("nameAndCity").columnNames() shouldBe listOf("city")
     }
@@ -368,6 +368,7 @@ class DataFrameTreeTests : BaseTest() {
         df2.pivot { it["nameAndCity"]["city"] }.groupBy { it["nameAndCity"]["name"] }.values("age").check()
     }
 
+    @Suppress("DEPRECATION_ERROR")
     @Test
     fun `pivot grouped column`() {
         val grouped = typed.group { age and weight }.into("info")
diff --git a/dataframe-arrow/src/test/kotlin/org/jetbrains/kotlinx/dataframe/io/ArrowKtTest.kt b/dataframe-arrow/src/test/kotlin/org/jetbrains/kotlinx/dataframe/io/ArrowKtTest.kt
index aa4f6bd652..679aabae49 100644
--- a/dataframe-arrow/src/test/kotlin/org/jetbrains/kotlinx/dataframe/io/ArrowKtTest.kt
+++ b/dataframe-arrow/src/test/kotlin/org/jetbrains/kotlinx/dataframe/io/ArrowKtTest.kt
@@ -35,7 +35,6 @@ import org.jetbrains.kotlinx.dataframe.api.NullabilityOptions
 import org.jetbrains.kotlinx.dataframe.api.add
 import org.jetbrains.kotlinx.dataframe.api.columnOf
 import org.jetbrains.kotlinx.dataframe.api.convertToBoolean
-import org.jetbrains.kotlinx.dataframe.api.copy
 import org.jetbrains.kotlinx.dataframe.api.dataFrameOf
 import org.jetbrains.kotlinx.dataframe.api.map
 import org.jetbrains.kotlinx.dataframe.api.pathOf
@@ -354,7 +353,7 @@ internal class ArrowKtTest {
 
     @Test
     fun testNarrowing() {
-        val frameWithoutRequiredField = citiesExampleFrame.copy().remove("settled")
+        val frameWithoutRequiredField = citiesExampleFrame.remove("settled")
 
         frameWithoutRequiredField.arrowWriter(
             targetSchema = Schema.fromJSON(citiesExampleSchema),
@@ -381,7 +380,7 @@ internal class ArrowKtTest {
 
     @Test
     fun testStrictType() {
-        val frameRenaming = citiesExampleFrame.copy().remove("settled")
+        val frameRenaming = citiesExampleFrame.remove("settled")
         val frameWithIncompatibleField =
             frameRenaming.add(
                 frameRenaming["is_capital"]
@@ -424,7 +423,7 @@ internal class ArrowKtTest {
 
     @Test
     fun testStrictNullable() {
-        val frameRenaming = citiesExampleFrame.copy().remove("settled")
+        val frameRenaming = citiesExampleFrame.remove("settled")
         val frameWithNulls = frameRenaming.add(
             DataColumn.createValueColumn(
                 "settled",
diff --git a/plugins/kotlin-dataframe/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api/move.kt b/plugins/kotlin-dataframe/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api/move.kt
index 0ae08cdfba..b2c5fea70b 100644
--- a/plugins/kotlin-dataframe/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api/move.kt
+++ b/plugins/kotlin-dataframe/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api/move.kt
@@ -4,6 +4,7 @@ import org.jetbrains.kotlinx.dataframe.api.after
 import org.jetbrains.kotlinx.dataframe.api.into
 import org.jetbrains.kotlinx.dataframe.api.move
 import org.jetbrains.kotlinx.dataframe.api.moveToStart
+import org.jetbrains.kotlinx.dataframe.api.pathOf
 import org.jetbrains.kotlinx.dataframe.api.to
 import org.jetbrains.kotlinx.dataframe.api.toStart
 import org.jetbrains.kotlinx.dataframe.api.toEnd
@@ -62,7 +63,7 @@ class MoveInto0 : AbstractSchemaModificationInterpreter() {
 
     override fun Arguments.interpret(): PluginDataFrameSchema {
         val columns = receiver.columns.resolve(receiver.df).map { it.path }
-        return receiver.df.asDataFrame().move { columns.toColumnSet() }.into(column).toPluginDataFrameSchema()
+        return receiver.df.asDataFrame().move { columns.toColumnSet() }.into{ pathOf(column) }.toPluginDataFrameSchema()
     }
 }