diff --git a/.github/workflows/fuzz.yml b/.github/workflows/fuzz.yml
index e50a9828944..6a24c9a1009 100644
--- a/.github/workflows/fuzz.yml
+++ b/.github/workflows/fuzz.yml
@@ -24,8 +24,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # TODO: add 3.15; relies on libcst which doesn't support 3.15 yet
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.15"]
 
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
diff --git a/.github/workflows/pypi_upload.yml b/.github/workflows/pypi_upload.yml
index 7b549ea375e..2950db45357 100644
--- a/.github/workflows/pypi_upload.yml
+++ b/.github/workflows/pypi_upload.yml
@@ -55,7 +55,7 @@ jobs:
         run: |
           {
             CIBW_BUILD="cp310-*" cibuildwheel --print-build-identifiers --platform linux | pyp 'json.dumps({"only": x, "os": "ubuntu-latest"})'
-            CIBW_BUILD="cp314-*" cibuildwheel --print-build-identifiers --platform windows | pyp 'json.dumps({"only": x, "os": "windows-latest"})'
+            CIBW_BUILD="cp315-*" cibuildwheel --print-build-identifiers --platform windows | pyp 'json.dumps({"only": x, "os": "windows-latest"})'
           } | pyp 'json.dumps(list(map(json.loads, lines)))' > /tmp/matrix
         env:
           CIBW_ARCHS_LINUX: x86_64
diff --git a/CHANGES.md b/CHANGES.md
index 3866861d89c..fc096802219 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -9,6 +9,10 @@
 
 <!-- Include any especially major or disruptive changes here -->
 
+- Python 3.15 support (#5101)
+- Add support for unpacking in comprehensions (PEP 798) and for lazy imports (PEP 810),
+  both new syntactic features in Python 3.15 (#5048)
+
 ### Stable style
 
 <!-- Changes that affect Black's stable style -->
@@ -18,8 +22,6 @@
 - Fix `# fmt: skip` being ignored in nested `if` expressions with parenthesized `in`
   clauses (#4903)
 - Fix crash when an f-string follows a `# fmt: off` comment inside brackets (#5097)
-- Add support for unpacking in comprehensions (PEP 798) and for lazy imports (PEP 810),
-  both new syntactic features in Python 3.15 (#5048)
 
 ### Preview style
 
diff --git a/plugin/black.vim b/plugin/black.vim
index db6b56646c5..b10e7d66cf5 100644
--- a/plugin/black.vim
+++ b/plugin/black.vim
@@ -86,6 +86,7 @@ function BlackComplete(ArgLead, CmdLine, CursorPos)
 \       'target_version=py312',
 \       'target_version=py313',
 \       'target_version=py314',
+\       'target_version=py315',
 \   ]
 endfunction
 
diff --git a/tests/util.py b/tests/util.py
index 26fd5aae720..0acce4bed2b 100644
--- a/tests/util.py
+++ b/tests/util.py
@@ -34,7 +34,6 @@
     TargetVersion.PY37,
     TargetVersion.PY38,
     TargetVersion.PY39,
-    TargetVersion.PY315,
 }
 
 DEFAULT_MODE = black.Mode()