diff --git a/.readthedocs.yml b/.readthedocs.yml
index 0aaa1ac1..7300e45b 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -8,7 +8,6 @@ formats: all
 python:
   version: 3.7
   install:
-    - requirements: docs/requirements.txt
     - method: pip
       path: .
       extra_requirements:
diff --git a/README.md b/README.md
index 1a5cdc6a..2c21f7e9 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 ![lint and test](https://github.com/pvlib/pvanalytics/workflows/lint%20and%20test/badge.svg)
 [![Coverage Status](https://coveralls.io/repos/github/pvlib/pvanalytics/badge.svg?branch=master)](https://coveralls.io/github/pvlib/pvanalytics?branch=master)
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.6110569.svg)](https://doi.org/10.5281/zenodo.6110569)
+
 
 # PVAnalytics
 
diff --git a/docs/requirements.txt b/docs/requirements.txt
deleted file mode 100644
index 9193cbab..00000000
--- a/docs/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-sphinx==2.2.0
diff --git a/docs/whatsnew/0.1.1.rst b/docs/whatsnew/0.1.1.rst
index ee6ca983..0a35e1db 100644
--- a/docs/whatsnew/0.1.1.rst
+++ b/docs/whatsnew/0.1.1.rst
@@ -1,17 +1,14 @@
 .. _whatsnew_011:
 
-0.1.1 (MONTH DAY, YEAR)
+0.1.1 (February 18, 2022)
 -------------------------
 
-API Changes
-~~~~~~~~~~~
-
 Enhancements
 ~~~~~~~~~~~~
 
 * Quantification of irradiance variability with
   :py:func:`pvanalytics.metrics.variability_index`. (:issue:`60`, :pull:`106`)
-* Internal refactor of `pvanalytics.metrics.performance_ratio_nrel` to support
+* Internal refactor of :py:func:`pvanalytics.metrics.performance_ratio_nrel` to support
   other performance ratio formulas. (:pull:`109`)
 * Detect shadows from fixed objects in GHI data using
   :py:func:`pvanalytics.features.shading.fixed`. (:issue:`24`, :pull:`101`)
@@ -19,13 +16,15 @@ Enhancements
 Bug Fixes
 ~~~~~~~~~
 
-* Added nan_policy to zscore calculation
+* Added ``nan_policy`` parameter to zscore calculation in
   :py:func:`pvanalytics.quality.outliers.zscore`. (:issue:`102`, :pull:`108`)
 * Prohibit pandas versions in the 1.1.x series to avoid an issue in
   ``.groupby().rolling()``.  Newer versions starting in 1.2.0 and older
   versions going back to 0.24.0 are still allowed. (:issue:`82`, :pull:`118`)
 * Fixed an issue with :py:func:`pvanalytics.features.clearsky.reno` in recent
   pandas versions (:issue:`125`, :pull:`128`)
+* Improved convergence in :py:func:`pvanalytics.features.orientation.fixed_nrel`
+  (:issue:`119`, :pull:`120`)
 
 Requirements
 ~~~~~~~~~~~~
@@ -44,3 +43,7 @@ Contributors
 * Kevin Anderson (:ghuser:`kanderso-nrel`)
 * Cliff Hansen (:ghuser:`cwhanse`)
 * Will Vining (:ghuser:`wfvining`)
+* Kirsten Perry (:ghuser:`kperrynrel`)
+* Michael Hopwood (:ghuser:`MichaelHopwood`)
+* Carlos Silva (:ghuser:`camsilva`)
+* Ben Taylor (:ghuser:`bt-`)
diff --git a/docs/whatsnew/index.rst b/docs/whatsnew/index.rst
index 257f2b92..b5c41a7c 100644
--- a/docs/whatsnew/index.rst
+++ b/docs/whatsnew/index.rst
@@ -7,4 +7,5 @@ These are the bug-fixes, new features, and improvements for each release.
 .. toctree::
    :maxdepth: 2
 
+   0.1.1
    0.1.0
diff --git a/setup.py b/setup.py
index f6f59891..7727e61d 100644
--- a/setup.py
+++ b/setup.py
@@ -54,7 +54,7 @@
 SETUP_REQUIRES = ['setuptools_scm']
 
 CLASSIFIERS = [
-    'Development Status :: 2 - Pre-Alpha',
+    'Development Status :: 4 - Beta',
     'Operating System :: OS Independent',
     'Intended Audience :: Science/Research',
     'Programming Language :: Python :: 3',