From 3ff8622bbc651e64f93d6dc9bd8da9ae1212f516 Mon Sep 17 00:00:00 2001
From: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date: Fri, 14 Jan 2022 17:29:30 +0100
Subject: [PATCH 1/2] DOC: add version dropdown to the online doc site

---
 doc/source/conf.py       | 13 +++++++++++++
 web/pandas/versions.json | 30 ++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 web/pandas/versions.json

diff --git a/doc/source/conf.py b/doc/source/conf.py
index ea878f052f1f8..d35ac8805dad0 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -225,11 +225,24 @@
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
+
+switcher_version = version
+if ".dev" in version:
+    switcher_version = version.split(".0.dev")[0] + " (dev)"
+elif "rc" in version:
+    switcher_version = version.split("rc")[0] + " (rc)"
+
 html_theme_options = {
     "external_links": [],
     "github_url": "https://github.com/pandas-dev/pandas",
     "twitter_url": "https://twitter.com/pandas_dev",
     "google_analytics_id": "UA-27880019-2",
+    "navbar_end": ["version-switcher", "navbar-icon-links"],
+    "switcher": {
+        "json_url": "https://pandas.pydata.org/versions.json",
+        "url_template": "https://pandas.pydata.org/{version}/",
+        "version_match": switcher_version,
+    },
 }
 
 # Add any paths that contain custom themes here, relative to this directory.
diff --git a/web/pandas/versions.json b/web/pandas/versions.json
new file mode 100644
index 0000000000000..de6c2da71c4ab
--- /dev/null
+++ b/web/pandas/versions.json
@@ -0,0 +1,30 @@
+[
+    {
+        "name": "1.5 (dev)",
+        "version": "docs/dev"
+    },
+    {
+        "name": "1.4.0 (rc)",
+        "version": "pandas-docs/version/1.4"
+    },
+    {
+        "name": "1.3.5 (stable)",
+        "version": "docs"
+    },
+    {
+        "name": "1.3.5",
+        "version": "pandas-docs/version/1.3"
+    },
+    {
+        "name": "1.2.5",
+        "version": "pandas-docs/version/1.2"
+    },
+    {
+        "name": "1.1.5",
+        "version": "pandas-docs/version/1.1"
+    },
+    {
+        "name": "1.0.5",
+        "version": "pandas-docs/version/1.0"
+    }
+]

From 6d3450290aedbca374210bc4b0727c5c19d13905 Mon Sep 17 00:00:00 2001
From: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date: Tue, 18 Jan 2022 21:52:37 +0100
Subject: [PATCH 2/2] simplify versions + use dev

---
 doc/source/conf.py       |  2 +-
 web/pandas/versions.json | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/doc/source/conf.py b/doc/source/conf.py
index d35ac8805dad0..e8cd85e3369f7 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -228,7 +228,7 @@
 
 switcher_version = version
 if ".dev" in version:
-    switcher_version = version.split(".0.dev")[0] + " (dev)"
+    switcher_version = "dev"
 elif "rc" in version:
     switcher_version = version.split("rc")[0] + " (rc)"
 
diff --git a/web/pandas/versions.json b/web/pandas/versions.json
index de6c2da71c4ab..76c06210e2238 100644
--- a/web/pandas/versions.json
+++ b/web/pandas/versions.json
@@ -1,30 +1,30 @@
 [
     {
-        "name": "1.5 (dev)",
+        "name": "dev",
         "version": "docs/dev"
     },
     {
-        "name": "1.4.0 (rc)",
+        "name": "1.4 (rc)",
         "version": "pandas-docs/version/1.4"
     },
     {
-        "name": "1.3.5 (stable)",
+        "name": "1.3 (stable)",
         "version": "docs"
     },
     {
-        "name": "1.3.5",
+        "name": "1.3",
         "version": "pandas-docs/version/1.3"
     },
     {
-        "name": "1.2.5",
+        "name": "1.2",
         "version": "pandas-docs/version/1.2"
     },
     {
-        "name": "1.1.5",
+        "name": "1.1",
         "version": "pandas-docs/version/1.1"
     },
     {
-        "name": "1.0.5",
+        "name": "1.0",
         "version": "pandas-docs/version/1.0"
     }
 ]