diff --git a/.changeset/great-queens-peel.md b/.changeset/great-queens-peel.md
deleted file mode 100644
index 25ab05a815..0000000000
--- a/.changeset/great-queens-peel.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-"stylelint": major
----
-
-Removed: Node.js 12 support
diff --git a/.changeset/grumpy-scissors-watch.md b/.changeset/grumpy-scissors-watch.md
deleted file mode 100644
index c38703f610..0000000000
--- a/.changeset/grumpy-scissors-watch.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-"stylelint": major
----
-
-Changed: `extends` in `overrides` to merge to be consistent with `plugins` behaviour
diff --git a/.changeset/hot-gifts-compete.md b/.changeset/hot-gifts-compete.md
deleted file mode 100644
index e40fb4dc5d..0000000000
--- a/.changeset/hot-gifts-compete.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-"stylelint": major
----
-
-Removed: support for processors
diff --git a/.changeset/nervous-insects-design.md b/.changeset/nervous-insects-design.md
deleted file mode 100644
index 9b73afb4fc..0000000000
--- a/.changeset/nervous-insects-design.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-"stylelint": major
----
-
-Removed: `syntax` option
diff --git a/.changeset/nice-carpets-yawn.md b/.changeset/nice-carpets-yawn.md
deleted file mode 100644
index fe5015ed62..0000000000
--- a/.changeset/nice-carpets-yawn.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-"stylelint": patch
----
-
-Fixed: incorrect output by all formatters except for `json`
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c06ffe1d43..dfb9f82a16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 15.0.0
+
+- Removed: `syntax` option ([#6420](https://github.com/stylelint/stylelint/pull/6420)) ([@fpetrakov](https://github.com/fpetrakov)). (BREAKING)
+- Removed: Node.js 12 support ([#6477](https://github.com/stylelint/stylelint/pull/6477)) ([@ybiquitous](https://github.com/ybiquitous)). (BREAKING)
+- Removed: support for processors ([#6479](https://github.com/stylelint/stylelint/pull/6479)) ([@ybiquitous](https://github.com/ybiquitous)). (BREAKING)
+- Changed: `extends` in `overrides` to merge to be consistent with `plugins` behaviour ([#6380](https://github.com/stylelint/stylelint/pull/6380)) ([@jasikpark](https://github.com/jasikpark)). (BREAKING)
+- Fixed: incorrect output by all formatters except for `json` ([#6480](https://github.com/stylelint/stylelint/pull/6480)) ([@ybiquitous](https://github.com/ybiquitous)).
+
 ## 14.15.0
 
 - Added: `--globby-options` flag ([#6437](https://github.com/stylelint/stylelint/pull/6437)) ([@sidverma32](https://github.com/sidverma32)).