diff --git a/libraries/stdlib/api/js-v1/kotlin.text.kt b/libraries/stdlib/api/js-v1/kotlin.text.kt
index 7474427a700..9f07024f2b4 100644
--- a/libraries/stdlib/api/js-v1/kotlin.text.kt
+++ b/libraries/stdlib/api/js-v1/kotlin.text.kt
@@ -141,6 +141,8 @@ public fun kotlin.CharSequence.commonSuffixWith(other: kotlin.CharSequence, igno
 @kotlin.SinceKotlin(version = "1.2")
 public fun kotlin.String.compareTo(other: kotlin.String, ignoreCase: kotlin.Boolean = ...): kotlin.Int
 
+@kotlin.Deprecated(message = "Use String.plus() instead", replaceWith = kotlin.ReplaceWith(expression = "this + str", imports = {}))
+@kotlin.DeprecatedSinceKotlin(warningSince = "1.6")
 @kotlin.internal.InlineOnly
 public inline fun kotlin.String.concat(str: kotlin.String): kotlin.String
 
@@ -476,12 +478,16 @@ public inline fun <R : kotlin.Any, C : kotlin.collections.MutableCollection<in R
 
 public inline fun <R, C : kotlin.collections.MutableCollection<in R>> kotlin.CharSequence.mapTo(destination: C, transform: (kotlin.Char) -> R): C
 
+@kotlin.Deprecated(message = "Use Regex.findAll() instead or invoke matches() on String dynamically: this.asDynamic().match(regex)")
+@kotlin.DeprecatedSinceKotlin(warningSince = "1.6")
 @kotlin.internal.InlineOnly
 public inline fun kotlin.String.match(regex: kotlin.String): kotlin.Array<kotlin.String>?
 
 @kotlin.internal.InlineOnly
 public inline infix fun kotlin.CharSequence.matches(regex: kotlin.text.Regex): kotlin.Boolean
 
+@kotlin.Deprecated(message = "Use Regex.matches() instead", replaceWith = kotlin.ReplaceWith(expression = "regex.toRegex().matches(this)", imports = {}))
+@kotlin.DeprecatedSinceKotlin(warningSince = "1.6")
 public fun kotlin.String.matches(regex: kotlin.String): kotlin.Boolean
 
 @kotlin.Deprecated(message = "Use maxOrNull instead.", replaceWith = kotlin.ReplaceWith(expression = "this.maxOrNull()", imports = {}))
diff --git a/libraries/stdlib/api/js/kotlin.text.kt b/libraries/stdlib/api/js/kotlin.text.kt
index 7474427a700..9f07024f2b4 100644
--- a/libraries/stdlib/api/js/kotlin.text.kt
+++ b/libraries/stdlib/api/js/kotlin.text.kt
@@ -141,6 +141,8 @@ public fun kotlin.CharSequence.commonSuffixWith(other: kotlin.CharSequence, igno
 @kotlin.SinceKotlin(version = "1.2")
 public fun kotlin.String.compareTo(other: kotlin.String, ignoreCase: kotlin.Boolean = ...): kotlin.Int
 
+@kotlin.Deprecated(message = "Use String.plus() instead", replaceWith = kotlin.ReplaceWith(expression = "this + str", imports = {}))
+@kotlin.DeprecatedSinceKotlin(warningSince = "1.6")
 @kotlin.internal.InlineOnly
 public inline fun kotlin.String.concat(str: kotlin.String): kotlin.String
 
@@ -476,12 +478,16 @@ public inline fun <R : kotlin.Any, C : kotlin.collections.MutableCollection<in R
 
 public inline fun <R, C : kotlin.collections.MutableCollection<in R>> kotlin.CharSequence.mapTo(destination: C, transform: (kotlin.Char) -> R): C
 
+@kotlin.Deprecated(message = "Use Regex.findAll() instead or invoke matches() on String dynamically: this.asDynamic().match(regex)")
+@kotlin.DeprecatedSinceKotlin(warningSince = "1.6")
 @kotlin.internal.InlineOnly
 public inline fun kotlin.String.match(regex: kotlin.String): kotlin.Array<kotlin.String>?
 
 @kotlin.internal.InlineOnly
 public inline infix fun kotlin.CharSequence.matches(regex: kotlin.text.Regex): kotlin.Boolean
 
+@kotlin.Deprecated(message = "Use Regex.matches() instead", replaceWith = kotlin.ReplaceWith(expression = "regex.toRegex().matches(this)", imports = {}))
+@kotlin.DeprecatedSinceKotlin(warningSince = "1.6")
 public fun kotlin.String.matches(regex: kotlin.String): kotlin.Boolean
 
 @kotlin.Deprecated(message = "Use maxOrNull instead.", replaceWith = kotlin.ReplaceWith(expression = "this.maxOrNull()", imports = {}))
diff --git a/libraries/stdlib/js/src/kotlin/text/string.kt b/libraries/stdlib/js/src/kotlin/text/string.kt
index f22383d9b62..5026312024e 100644
--- a/libraries/stdlib/js/src/kotlin/text/string.kt
+++ b/libraries/stdlib/js/src/kotlin/text/string.kt
@@ -228,9 +228,13 @@ public actual inline fun String.substring(startIndex: Int): String = asDynamic()
 @kotlin.internal.InlineOnly
 public actual inline fun String.substring(startIndex: Int, endIndex: Int): String = asDynamic().substring(startIndex, endIndex)
 
+@Deprecated("Use String.plus() instead", ReplaceWith("this + str"))
+@DeprecatedSinceKotlin(warningSince = "1.6")
 @kotlin.internal.InlineOnly
 public inline fun String.concat(str: String): String = asDynamic().concat(str)
 
+@Deprecated("Use Regex.findAll() instead or invoke matches() on String dynamically: this.asDynamic().match(regex)")
+@DeprecatedSinceKotlin(warningSince = "1.6")
 @kotlin.internal.InlineOnly
 public inline fun String.match(regex: String): Array<String>? = asDynamic().match(regex)
 
diff --git a/libraries/stdlib/js/src/kotlin/text/stringsCode.kt b/libraries/stdlib/js/src/kotlin/text/stringsCode.kt
index 44e02eba577..516d77739f8 100644
--- a/libraries/stdlib/js/src/kotlin/text/stringsCode.kt
+++ b/libraries/stdlib/js/src/kotlin/text/stringsCode.kt
@@ -46,8 +46,10 @@ public actual fun String.endsWith(suffix: String, ignoreCase: Boolean = false):
         return regionMatches(length - suffix.length, suffix, 0, suffix.length, ignoreCase)
 }
 
-
+@Deprecated("Use Regex.matches() instead", ReplaceWith("regex.toRegex().matches(this)"))
+@DeprecatedSinceKotlin(warningSince = "1.6")
 public fun String.matches(regex: String): Boolean {
+    @Suppress("DEPRECATION")
     val result = this.match(regex)
     return result != null && result.size != 0
 }