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diff --git a/docs/conf.py b/docs/conf.py
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index 2cb5a10..520c101 100644
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--- a/docs/conf.py
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+++ b/docs/conf.py
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@@ -35,7 +35,6 @@ extensions = [
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     'sphinx.ext.viewcode',
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     'alabaster',
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     'sphinx_issues',
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-    'versionwarning.extension',
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 ]
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 primary_domain = 'py'
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@@ -101,19 +100,3 @@ html_sidebars = {
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     '**': ['about.html', 'donate.html', 'useful-links.html',
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            'localtoc.html', 'relations.html', 'searchbox.html']
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 }
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-
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-# sphinx-version-warning config
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-versionwarning_messages = {
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-    'latest': 'This document is for the development version. For the stable version documentation, see here.',
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-    'stable': 'This document is for the latest stable release. For the 3.0 pre-release documentation, see here.',
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-    '3.0': 'This document is for the latest 3.0 pre-release. For the 2.x documentation, see here.',
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-    '2.x-line': 'This document is for the 2.x release branch. For the 3.0 pre-release documentation, see here.',
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-}
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-# Show warning at top of page
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-versionwarning_body_selector = 'div.document'
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-# For debugging locally
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-# versionwarning_project_version = '3.0'
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-
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-# https://docs.readthedocs.io/en/latest/guides/adding-custom-css.html
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-def setup(app):
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-    app.add_stylesheet('css/versionwarning.css')