bashtage
diff --git a/‎doc/source/changes/4.0.txt
+5 b/‎doc/source/changes/4.0.txt
+5
diff --git a/‎doc/source/conf.py
+1-1 b/‎doc/source/conf.py
+1-1
diff --git a/‎examples/bootstrap_examples.ipynb
+28-19 b/‎examples/bootstrap_examples.ipynb
+28-19
diff --git a/‎examples/multiple-comparison_examples.ipynb
+31-31 b/‎examples/multiple-comparison_examples.ipynb
+31-31
diff --git a/‎examples/unitroot_cointegration_examples.ipynb
+16-16 b/‎examples/unitroot_cointegration_examples.ipynb
+16-16
diff --git a/‎examples/unitroot_examples.ipynb
+10-13 b/‎examples/unitroot_examples.ipynb
+10-13
diff --git a/‎examples/univariate_using_fixed_variance.ipynb
+26-26 b/‎examples/univariate_using_fixed_variance.ipynb
+26-26
diff --git a/‎examples/univariate_volatility_forecasting.ipynb
+34-34 b/‎examples/univariate_volatility_forecasting.ipynb
+34-34
diff --git a/‎examples/univariate_volatility_modeling.ipynb
+138-138 b/‎examples/univariate_volatility_modeling.ipynb
+138-138
diff --git a/‎examples/univariate_volatility_scenarios.ipynb
+11-11 b/‎examples/univariate_volatility_scenarios.ipynb
+11-11
diff --git a/‎requirements-dev.txt
+4-4 b/‎requirements-dev.txt
+4-4
@@ -2,6 +2,11 @@
 Version 4
 =========
 
+Release 4.18
+============
+- Improved :func:`~arch.univariate.HARX.fit` performance of ARCH models.
+- Fixed a bug where ```typing_extensions`` was subtly introduced as a run-time dependency.
+
 Release 4.17
 ============
 - Fixed a bug that produced incorrect conditional volatility from EWMA models (:issue:`458`).
 
@@ -269,7 +269,7 @@
 
 # Example configuration for intersphinx: refer to the Python standard library.
 intersphinx_mapping = {
-    "statsmodels": ("http://www.statsmodels.org/dev/", None),
+    "statsmodels": ("https://www.statsmodels.org/dev/", None),
     "matplotlib": ("https://matplotlib.org", None),
     "scipy": ("https://docs.scipy.org/doc/scipy/reference/", None),
     "python": ("https://docs.python.org/3/", None),
 
@@ -1,9 +1,9 @@
 # Performance
-cython>=0.29.21
+cython>=0.29.22
 numba>=0.49,!=0.50.*
 
 # Graphics
-matplotlib>=2
+matplotlib>=3
 seaborn
 
 # Tests
@@ -16,8 +16,8 @@ isort
 flake8
 
 # Documentation
-ipython>=6
-sphinx>=1.8
+ipython>=7
+sphinx>=3
 sphinx_material
 nbsphinx
 jupyter