diff --git a/core/builtins/src/kotlin/ProgressionIterators.kt b/core/builtins/src/kotlin/ProgressionIterators.kt
index 659cb9fad2a..dacc76c7dcb 100644
--- a/core/builtins/src/kotlin/ProgressionIterators.kt
+++ b/core/builtins/src/kotlin/ProgressionIterators.kt
@@ -139,7 +139,7 @@ class LongProgressionIterator(start: Long, end: Long, val increment: Long) : Lon
  * An iterator over a progression of values of type `Float`.
  * @property increment the number by which the value is incremented on each step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)
 class FloatProgressionIterator(start: Float, val end: Float, val increment: Float) : FloatIterator() {
     private var next = start
 
@@ -156,7 +156,7 @@ class FloatProgressionIterator(start: Float, val end: Float, val increment: Floa
  * An iterator over a progression of values of type `Double`.
  * @property increment the number by which the value is incremented on each step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)
 class DoubleProgressionIterator(start: Double, val end: Double, val increment: Double) : DoubleIterator() {
     private var next = start
 
diff --git a/core/builtins/src/kotlin/Progressions.kt b/core/builtins/src/kotlin/Progressions.kt
index 0161b6ddd7e..36bd8922a3a 100644
--- a/core/builtins/src/kotlin/Progressions.kt
+++ b/core/builtins/src/kotlin/Progressions.kt
@@ -153,7 +153,7 @@ public class LongProgression(
     override fun toString(): String = if (increment > 0) "$start..$end step $increment" else "$start downTo $end step ${-increment}"
 }
 
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)
 @Suppress("DEPRECATION_ERROR")
 /**
  * A progression of values of type `Float`.
@@ -183,7 +183,7 @@ public class FloatProgression(
     override fun toString(): String = if (increment > 0) "$start..$end step $increment" else "$start downTo $end step ${-increment}"
 }
 
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)
 @Suppress("DEPRECATION_ERROR")
 /**
  * A progression of values of type `Double`.
diff --git a/core/builtins/src/kotlin/Ranges.kt b/core/builtins/src/kotlin/Ranges.kt
index 8e61350214f..c183862a050 100644
--- a/core/builtins/src/kotlin/Ranges.kt
+++ b/core/builtins/src/kotlin/Ranges.kt
@@ -158,7 +158,7 @@ public class LongRange(override val start: Long, override val end: Long) : Range
     }
 }
 
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)
 @Suppress("DEPRECATION_ERROR")
 /**
  * A range of values of type `Float`.
@@ -188,7 +188,7 @@ public class FloatRange(override val start: Float, override val end: Float) : Ra
     }
 }
 
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)
 @Suppress("DEPRECATION_ERROR")
 /**
  * A range of values of type `Double`.
diff --git a/generators/src/org/jetbrains/kotlin/generators/builtins/progressionIterators.kt b/generators/src/org/jetbrains/kotlin/generators/builtins/progressionIterators.kt
index fdb040f17b9..88c4b0a1635 100644
--- a/generators/src/org/jetbrains/kotlin/generators/builtins/progressionIterators.kt
+++ b/generators/src/org/jetbrains/kotlin/generators/builtins/progressionIterators.kt
@@ -61,7 +61,7 @@ fun floatingPointProgressionIterator(kind: ProgressionKind): String {
  * An iterator over a progression of values of type `$t`.
  * @property increment the number by which the value is incremented on each step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)
 class ${t}ProgressionIterator(start: $t, val end: $t, val increment: $t) : ${t}Iterator() {
     private var next = start
 
diff --git a/generators/src/org/jetbrains/kotlin/generators/builtins/progressions.kt b/generators/src/org/jetbrains/kotlin/generators/builtins/progressions.kt
index 50e1994283c..88011debdcc 100644
--- a/generators/src/org/jetbrains/kotlin/generators/builtins/progressions.kt
+++ b/generators/src/org/jetbrains/kotlin/generators/builtins/progressions.kt
@@ -65,7 +65,7 @@ class GenerateProgressions(out: PrintWriter) : BuiltInsSourceGenerator(out) {
             }
 
             if (kind == FLOAT || kind == DOUBLE) {
-                out.println("""@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)""")
+                out.println("""@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)""")
                 out.println("""@Suppress("DEPRECATION_ERROR")""")
             }
 
diff --git a/generators/src/org/jetbrains/kotlin/generators/builtins/ranges.kt b/generators/src/org/jetbrains/kotlin/generators/builtins/ranges.kt
index 1fe3d2c3db7..881b8b16818 100644
--- a/generators/src/org/jetbrains/kotlin/generators/builtins/ranges.kt
+++ b/generators/src/org/jetbrains/kotlin/generators/builtins/ranges.kt
@@ -65,7 +65,7 @@ class GenerateRanges(out: PrintWriter) : BuiltInsSourceGenerator(out) {
             val toString = "\"\$start..\$end\""
 
             if (kind == FLOAT || kind == DOUBLE) {
-                out.println("""@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)""")
+                out.println("""@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING)""")
                 out.println("""@Suppress("DEPRECATION_ERROR")""")
             }
 
diff --git a/libraries/stdlib/src/generated/_Ranges.kt b/libraries/stdlib/src/generated/_Ranges.kt
index bca57a513b0..4f9bbdf9a40 100644
--- a/libraries/stdlib/src/generated/_Ranges.kt
+++ b/libraries/stdlib/src/generated/_Ranges.kt
@@ -39,7 +39,7 @@ public operator fun Range<Short>.contains(item: Byte): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("doubleRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Double>.contains(item: Byte): Boolean {
@@ -49,7 +49,7 @@ public operator fun Range<Double>.contains(item: Byte): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("floatRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Float>.contains(item: Byte): Boolean {
@@ -91,7 +91,7 @@ public operator fun Range<Short>.contains(item: Double): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("floatRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Float>.contains(item: Double): Boolean {
@@ -133,7 +133,7 @@ public operator fun Range<Short>.contains(item: Float): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("doubleRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Double>.contains(item: Float): Boolean {
@@ -167,7 +167,7 @@ public operator fun Range<Short>.contains(item: Int): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("doubleRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Double>.contains(item: Int): Boolean {
@@ -177,7 +177,7 @@ public operator fun Range<Double>.contains(item: Int): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("floatRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Float>.contains(item: Int): Boolean {
@@ -211,7 +211,7 @@ public operator fun Range<Short>.contains(item: Long): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("doubleRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Double>.contains(item: Long): Boolean {
@@ -221,7 +221,7 @@ public operator fun Range<Double>.contains(item: Long): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("floatRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Float>.contains(item: Long): Boolean {
@@ -255,7 +255,7 @@ public operator fun Range<Byte>.contains(item: Short): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("doubleRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Double>.contains(item: Short): Boolean {
@@ -265,7 +265,7 @@ public operator fun Range<Double>.contains(item: Short): Boolean {
 /**
  * Checks if the specified [item] belongs to this range.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @kotlin.jvm.JvmName("floatRangeContains")
 @Suppress("DEPRECATION_ERROR")
 public operator fun Range<Float>.contains(item: Short): Boolean {
@@ -308,7 +308,7 @@ public infix fun Short.downTo(to: Byte): ShortProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Double.downTo(to: Byte): DoubleProgression {
     return DoubleProgression(this, to.toDouble(), -1.0)
@@ -318,7 +318,7 @@ public infix fun Double.downTo(to: Byte): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Float.downTo(to: Byte): FloatProgression {
     return FloatProgression(this, to.toFloat(), -1.0F)
@@ -336,7 +336,7 @@ public infix fun Char.downTo(to: Char): CharProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Int.downTo(to: Double): DoubleProgression {
     return DoubleProgression(this.toDouble(), to, -1.0)
@@ -346,7 +346,7 @@ public infix fun Int.downTo(to: Double): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Long.downTo(to: Double): DoubleProgression {
     return DoubleProgression(this.toDouble(), to, -1.0)
@@ -356,7 +356,7 @@ public infix fun Long.downTo(to: Double): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Byte.downTo(to: Double): DoubleProgression {
     return DoubleProgression(this.toDouble(), to, -1.0)
@@ -366,7 +366,7 @@ public infix fun Byte.downTo(to: Double): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Short.downTo(to: Double): DoubleProgression {
     return DoubleProgression(this.toDouble(), to, -1.0)
@@ -376,7 +376,7 @@ public infix fun Short.downTo(to: Double): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Double.downTo(to: Double): DoubleProgression {
     return DoubleProgression(this, to, -1.0)
@@ -386,7 +386,7 @@ public infix fun Double.downTo(to: Double): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Float.downTo(to: Double): DoubleProgression {
     return DoubleProgression(this.toDouble(), to, -1.0)
@@ -396,7 +396,7 @@ public infix fun Float.downTo(to: Double): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Int.downTo(to: Float): FloatProgression {
     return FloatProgression(this.toFloat(), to, -1.0F)
@@ -406,7 +406,7 @@ public infix fun Int.downTo(to: Float): FloatProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Long.downTo(to: Float): FloatProgression {
     return FloatProgression(this.toFloat(), to, -1.0F)
@@ -416,7 +416,7 @@ public infix fun Long.downTo(to: Float): FloatProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Byte.downTo(to: Float): FloatProgression {
     return FloatProgression(this.toFloat(), to, -1.0F)
@@ -426,7 +426,7 @@ public infix fun Byte.downTo(to: Float): FloatProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Short.downTo(to: Float): FloatProgression {
     return FloatProgression(this.toFloat(), to, -1.0F)
@@ -436,7 +436,7 @@ public infix fun Short.downTo(to: Float): FloatProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Double.downTo(to: Float): DoubleProgression {
     return DoubleProgression(this, to.toDouble(), -1.0)
@@ -446,7 +446,7 @@ public infix fun Double.downTo(to: Float): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Float.downTo(to: Float): FloatProgression {
     return FloatProgression(this, to, -1.0F)
@@ -488,7 +488,7 @@ public infix fun Short.downTo(to: Int): IntProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Double.downTo(to: Int): DoubleProgression {
     return DoubleProgression(this, to.toDouble(), -1.0)
@@ -498,7 +498,7 @@ public infix fun Double.downTo(to: Int): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Float.downTo(to: Int): FloatProgression {
     return FloatProgression(this, to.toFloat(), -1.0F)
@@ -540,7 +540,7 @@ public infix fun Short.downTo(to: Long): LongProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Double.downTo(to: Long): DoubleProgression {
     return DoubleProgression(this, to.toDouble(), -1.0)
@@ -550,7 +550,7 @@ public infix fun Double.downTo(to: Long): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Float.downTo(to: Long): FloatProgression {
     return FloatProgression(this, to.toFloat(), -1.0F)
@@ -592,7 +592,7 @@ public infix fun Short.downTo(to: Short): ShortProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Double.downTo(to: Short): DoubleProgression {
     return DoubleProgression(this, to.toDouble(), -1.0)
@@ -602,7 +602,7 @@ public infix fun Double.downTo(to: Short): DoubleProgression {
  * Returns a progression from this value down to the specified [to] value with the increment -1.
  * The [to] value has to be less than this value.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun Float.downTo(to: Short): FloatProgression {
     return FloatProgression(this, to.toFloat(), -1.0F)
@@ -681,7 +681,7 @@ public fun ShortRange.reversed(): ShortProgression {
 /**
  * Returns a progression that goes over the same range in the opposite direction with the same step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public fun DoubleProgression.reversed(): DoubleProgression {
     return DoubleProgression(end, start, -increment)
@@ -690,7 +690,7 @@ public fun DoubleProgression.reversed(): DoubleProgression {
 /**
  * Returns a progression that goes over the same range in the opposite direction with the same step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public fun FloatProgression.reversed(): FloatProgression {
     return FloatProgression(end, start, -increment)
@@ -699,7 +699,7 @@ public fun FloatProgression.reversed(): FloatProgression {
 /**
  * Returns a progression that goes over this range in reverse direction.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public fun DoubleRange.reversed(): DoubleProgression {
     return DoubleProgression(end, start, -1.0)
@@ -708,7 +708,7 @@ public fun DoubleRange.reversed(): DoubleProgression {
 /**
  * Returns a progression that goes over this range in reverse direction.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public fun FloatRange.reversed(): FloatProgression {
     return FloatProgression(end, start, -1.0f)
@@ -797,7 +797,7 @@ public infix fun ShortRange.step(step: Int): ShortProgression {
 /**
  * Returns a progression that goes over the same range with the given step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun DoubleProgression.step(step: Double): DoubleProgression {
     checkStepIsPositive(step > 0, step)
@@ -807,7 +807,7 @@ public infix fun DoubleProgression.step(step: Double): DoubleProgression {
 /**
  * Returns a progression that goes over the same range with the given step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun FloatProgression.step(step: Float): FloatProgression {
     checkStepIsPositive(step > 0, step)
@@ -817,7 +817,7 @@ public infix fun FloatProgression.step(step: Float): FloatProgression {
 /**
  * Returns a progression that goes over this range with given step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun DoubleRange.step(step: Double): DoubleProgression {
     if (step.isNaN()) throw IllegalArgumentException("Step must not be NaN.")
@@ -828,7 +828,7 @@ public infix fun DoubleRange.step(step: Double): DoubleProgression {
 /**
  * Returns a progression that goes over this range with given step.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 @Suppress("DEPRECATION_ERROR")
 public infix fun FloatRange.step(step: Float): FloatProgression {
     if (step.isNaN()) throw IllegalArgumentException("Step must not be NaN.")
@@ -1259,7 +1259,7 @@ public fun Short.coerceIn(range: Range<Short>): Short {
  * Ensures that this value lies in the specified [range].
  * @return this value if it's in the [range], or range.start if this value is less than range.start, or range.end if this value is greater than range.end.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 public fun <T: Comparable<T>> T.coerceIn(range: Range<T>): T {
     if (range.isEmpty()) throw IllegalArgumentException("Cannot coerce value to an empty range: $range.")
     return if (this < range.start) range.start else if (this > range.end) range.end else this
@@ -1269,7 +1269,7 @@ public fun <T: Comparable<T>> T.coerceIn(range: Range<T>): T {
  * Ensures that this value lies in the specified [range].
  * @return this value if it's in the [range], or range.start if this value is less than range.start, or range.end if this value is greater than range.end.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 public fun Double.coerceIn(range: Range<Double>): Double {
     if (range.isEmpty()) throw IllegalArgumentException("Cannot coerce value to an empty range: $range.")
     return if (this < range.start) range.start else if (this > range.end) range.end else this
@@ -1279,7 +1279,7 @@ public fun Double.coerceIn(range: Range<Double>): Double {
  * Ensures that this value lies in the specified [range].
  * @return this value if it's in the [range], or range.start if this value is less than range.start, or range.end if this value is greater than range.end.
  */
-@Deprecated("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR)
+@Deprecated("This range implementation has unclear semantics and will be removed soon.")
 public fun Float.coerceIn(range: Range<Float>): Float {
     if (range.isEmpty()) throw IllegalArgumentException("Cannot coerce value to an empty range: $range.")
     return if (this < range.start) range.start else if (this > range.end) range.end else this
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Comparables.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Comparables.kt
index 39117466692..9b79f4b6658 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Comparables.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Comparables.kt
@@ -80,7 +80,7 @@ fun comparables(): List<GenericFunction> {
             @return this value if it's in the [range], or range.start if this value is less than range.start, or range.end if this value is greater than range.end.
             """
         }
-        deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR))
+        deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING))
         body {
             """
             if (range.isEmpty()) throw IllegalArgumentException("Cannot coerce value to an empty range: ${'$'}range.")
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/Ranges.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/Ranges.kt
index 19cc620d7ba..04d911bd2ea 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/Ranges.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/Ranges.kt
@@ -26,7 +26,7 @@ fun ranges(): List<GenericFunction> {
         doc(ProgressionsOfPrimitives) { "Returns a progression that goes over the same range in the opposite direction with the same step." }
         doc(RangesOfPrimitives) { "Returns a progression that goes over this range in reverse direction." }
         returns("TProgression")
-        deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR))
+        deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING))
         annotations("""@Suppress("DEPRECATION_ERROR")""")
         body(RangesOfPrimitives) {
             "return TProgression(end, start, -ONE)"
@@ -66,7 +66,7 @@ fun ranges(): List<GenericFunction> {
         doc(ProgressionsOfPrimitives) { "Returns a progression that goes over the same range with the given step." }
         doc(RangesOfPrimitives) { "Returns a progression that goes over this range with given step." }
         returns("TProgression")
-        deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR))
+        deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING))
         annotations("""@Suppress("DEPRECATION_ERROR")""")
         body(RangesOfPrimitives) {
             """
@@ -107,7 +107,7 @@ fun ranges(): List<GenericFunction> {
         }
 
         if (!fromType.isIntegral() || !toType.isIntegral()) {
-            deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR))
+            deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING))
             annotations("""@Suppress("DEPRECATION_ERROR")""")
         }
 
@@ -147,7 +147,7 @@ fun ranges(): List<GenericFunction> {
         }
 
         if (!fromType.isIntegral() || !toType.isIntegral()) {
-            deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR))
+            deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING))
             annotations("""@Suppress("DEPRECATION_ERROR")""")
         }
 
@@ -180,7 +180,7 @@ fun ranges(): List<GenericFunction> {
         operator(true)
 
         if (!rangeType.isIntegral()) {
-            deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.ERROR))
+            deprecate(Deprecation("This range implementation has unclear semantics and will be removed soon.", level = DeprecationLevel.WARNING))
             annotations("""@Suppress("DEPRECATION_ERROR")""")
         }