diff --git a/documentation/source/conf.py b/documentation/source/conf.py
index c77aa86..404e579 100644
--- a/documentation/source/conf.py
+++ b/documentation/source/conf.py
@@ -1,22 +1,12 @@
 # Configuration file for the Sphinx documentation builder.
-#
-# This file only contains a selection of the most common options. For a full
-# list see the documentation:
 # https://www.sphinx-doc.org/en/master/usage/configuration.html
 
-# -- Path setup --------------------------------------------------------------
-
-# If extensions (or modules to document with autodoc) are in another directory,
-# add these directories to sys.path here. If the directory is relative to the
-# documentation root, use os.path.abspath to make it absolute, like shown here.
-
 import os
 import sys
 
 sys.path.insert(0, os.path.abspath('../../_packages/sphinx-extensions/current/src/sphinxcontrib'))
 
 import dylan.domain
-import dylan.themes as dylan_themes
 
 # -- Project information -----------------------------------------------------
 
@@ -25,7 +15,7 @@
 author = 'Carl Gay'
 
 # The full version, including alpha/beta/rc tags
-release = 'v1.2.0'
+release = 'v2.0.0'
 
 
 # -- General configuration ---------------------------------------------------
@@ -38,9 +28,6 @@
     'sphinx.ext.intersphinx'
 ]
 
-# Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
-
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
 # This pattern also affects html_static_path and html_extra_path.
@@ -52,22 +39,5 @@
 # without depending on this top-level config file.
 primary_domain = 'dylan'
 
-
-# -- Options for HTML output -------------------------------------------------
-
-# The theme to use for HTML and HTML Help pages.  See the documentation for
-# a list of builtin themes.
-html_theme = dylan_themes.get_html_theme_default()
-
-# 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.
-html_theme_options = dylan_themes.get_html_theme_options_default()
-
-# Add any paths that contain custom themes here, relative to this directory.
-html_theme_path = [dylan_themes.get_html_theme_path()]
-
-# Add any paths that contain custom static files (such as style sheets) here,
-# relative to this directory. They are copied after the builtin static files,
-# so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+# sudo pip install -U furo
+html_theme = 'furo'
diff --git a/documentation/source/index.rst b/documentation/source/index.rst
index 1e586ee..581e4a2 100644
--- a/documentation/source/index.rst
+++ b/documentation/source/index.rst
@@ -11,8 +11,8 @@ The *strings* library was originally defined in `DEP-0004
 <http://opendylan.org/proposals/dep-0004.html>`_.  Some additional background
 material can be found there.
 
-.. contents::  Contents
-   :local:
+.. toctree::
+   :hidden:
 
 .. note::
 
@@ -671,55 +671,20 @@ Case Conversion Functions
        lowercase!("Hack Dylan!")
        => error, attempt to modify a string constant
 
-.. generic-function:: lowercase?
-   :sealed:
+.. function:: lowercase?
 
-   Returns :drm:`#t` if the argument is entirely composed of
-   non-uppercase characters.
-
-   :signature: lowercase? (string-or-character) => (is-lowercase?)
-   :parameter string-or-character: An instance of ``type-union(<string>, <character>)``.
-   :value is-lowercase?: An instance of :drm:`<boolean>`.
-
-.. method:: lowercase?
-   :specializer: <character>
-   :sealed:
-
-   Returns :drm:`#t` if the given character is not an uppercase alphabetic.
-   Otherwise :drm:`#f` is returned.
+   Returns :drm:`#t` if the argument is a lowercase alphabetic character.
+   Otherwise returns :drm:`#f`.
 
    :signature: lowercase? (character) => (is-lowercase?)
    :parameter character: An instance of :drm:`<character>`.
    :value is-lowercase?: An instance of :drm:`<boolean>`.
-   :example:
-
-     .. code-block:: dylan
 
-       lowercase?('n') => #t
-       lowercase?('N') => #f
-       lowercase?('*') => #t
-
-.. method:: lowercase?
-   :specializer: <string>
-   :sealed:
-
-   Returns :drm:`#t` if the argument does not contain any uppercase
-   alphabetic characters.  Otherwise :drm:`#f` is returned.
-
-   :signature: lowercase? (string) => (is-lowercase?)
-   :parameter string: An instance of :drm:`<string>`.
-   :parameter #key start: An instance of :drm:`<integer>`, default 0.  The index
-     at which to start checking.
-   :parameter #key end: An instance of :drm:`<integer>`, default
-     ``string.size``.  The index before which to stop checking.
-   :value is-lowercase?: An instance of :drm:`<boolean>`.
-   :example:
-
-     .. code-block:: dylan
+   .. code-block:: dylan
 
-       lowercase?("Why me?") => #f
-       lowercase?("Why me?", start: 1) => #t
-       lowercase?("e.e. cummings") => #t
+      lowercase?('n') => #t
+      lowercase?('N') => #f
+      lowercase?('*') => #f
 
 .. generic-function:: uppercase
    :sealed:
@@ -820,54 +785,21 @@ Case Conversion Functions
        uppercase!("Hack Dylan!")
        => error, attempt to modify a string constant
 
-.. generic-function:: uppercase?
-   :sealed:
-
-   Returns :drm:`#t` if the argument is entirely composed of
-   non-lowercase characters.
-
-   :signature: uppercase? (string-or-character) => (is-uppercase?)
-   :parameter string-or-character: An instance of ``type-union(<string>, <character>)``.
-   :value is-uppercase?: An instance of :drm:`<boolean>`.
+.. function:: uppercase?
 
-.. method:: uppercase?
-   :specializer: <character>
-   :sealed:
-
-   Returns :drm:`#t` if the given character is not a lowercase alphabetic.
-   Otherwise :drm:`#f` is returned.
+   Returns :drm:`#t` if the argument is an uppercase alphabetic character.
+   Otherwise returns :drm:`#f`.
 
    :signature: uppercase? (character) => (is-uppercase?)
    :parameter character: An instance of :drm:`<character>`.
    :value is-uppercase?: An instance of :drm:`<boolean>`.
-   :example:
-
-     .. code-block:: dylan
-
-       uppercase?('T') => #t
-       uppercase?('t') => #f
-       uppercase?('^') => #t
-
-.. method:: uppercase?
-   :specializer: <string>
-   :sealed:
-
-   Returns :drm:`#t` if the argument does not contain any lowercase
-   alphabetic characters.  Otherwise :drm:`#f` is returned.
 
-   :signature: uppercase? (string) => (is-uppercase?)
-   :parameter string: An instance of :drm:`<string>`.
-   :parameter #key start: An instance of :drm:`<integer>`, default 0.  The index
-     at which to start checking.
-   :parameter #key end: An instance of :drm:`<integer>`, default
-     ``string.size``.  The index before which to stop checking.
-   :value is-uppercase?: An instance of :drm:`<boolean>`.
-   :example:
+   .. code-block:: dylan
 
-     .. code-block:: dylan
+      uppercase?('T') => #t
+      uppercase?('t') => #f
+      uppercase?('^') => #f
 
-       uppercase?("AbC") => #f
-       uppercase?("ABC") => #t
 
 Comparison Functions
 --------------------
diff --git a/dylan-package.json b/dylan-package.json
index 87a369c..2c1d4fb 100644
--- a/dylan-package.json
+++ b/dylan-package.json
@@ -7,6 +7,6 @@
     ],
     "description": "String manipulation functions",
     "name": "strings",
-    "version": "1.2.0",
+    "version": "2.0.0",
     "url": "https://github.com/dylan-lang/strings"
 }
diff --git a/strings.dylan b/strings.dylan
index 1e2c00f..59d0b40 100644
--- a/strings.dylan
+++ b/strings.dylan
@@ -129,43 +129,21 @@ define method whitespace?
 end;
 
 
-// Returns #t if the required argument could be a value returned from
-// 'as-uppercase'.  In other words, if the argument does NOT contain
-// any lowercase characters.
 define sealed generic uppercase?
-    (string-or-character :: <string-or-char>, #key) => (uppercase? :: <boolean>);
+    (char :: <character>) => (uppercase? :: <boolean>);
 
 define inline method uppercase?
-    (char :: <character>, #key) => (b :: <boolean>)
-  ~lowercase-code?(as(<integer>, char))
-end;
-
-define method uppercase?
-    (string :: <string>,
-     #key start :: <integer> = 0,
-          end: epos :: <integer> = string.size)
- => (b :: <boolean>)
-  %every?(uppercase?, string, start, epos)
+    (char :: <character>) => (b :: <boolean>)
+  uppercase-code?(as(<integer>, char))
 end;
 
 
-// Returns #t if the required argument could be a value returned from
-// 'as-lowercase'.  In other words, if the argument does NOT contain
-// any uppercase characters.
 define sealed generic lowercase?
-    (string-or-character :: <string-or-char>, #key) => (lowercase? :: <boolean>);
+    (char :: <character>) => (lowercase? :: <boolean>);
 
 define inline method lowercase?
-    (char :: <character>, #key) => (b :: <boolean>)
-  ~uppercase-code?(as(<integer>, char))
-end;
-
-define method lowercase?
-    (string :: <string>,
-     #key start :: <integer> = 0,
-          end: epos :: <integer> = string.size)
- => (b :: <boolean>)
-  %every?(lowercase?, string, start, epos)
+    (char :: <character>) => (b :: <boolean>)
+  lowercase-code?(as(<integer>, char))
 end;
 
 
diff --git a/tests/strings-test-suite.dylan b/tests/strings-test-suite.dylan
index 064f76b..e28c634 100644
--- a/tests/strings-test-suite.dylan
+++ b/tests/strings-test-suite.dylan
@@ -405,16 +405,24 @@ end test;
 
 define test test-lowercase? ()
   check-true("a", lowercase?('a'));
-  check-true("b", lowercase?("abc-$#^^10"));
-  check-false("c", lowercase?('A'));
-  check-false("d", lowercase?("aBc-$#^^10"));
+  check-true("z", lowercase?('z'));
+  check-false("A", lowercase?('A'));
+  check-false("Z", lowercase?('Z'));
+  check-false("@", lowercase?('@'));
+  check-false("[", lowercase?('['));
+  check-false("`", lowercase?('`'));
+  check-false("{", lowercase?('{'));
 end test;
 
 define test test-uppercase? ()
-  check-true("a", uppercase?('X'));
-  check-true("b", uppercase?("ABC-$#^^10"));
-  check-false("c", uppercase?('b'));
-  check-false("d", uppercase?("aBc-$#^^10"));
+  check-true("A", uppercase?('A'));
+  check-true("Z", uppercase?('Z'));
+  check-false("a", uppercase?('a'));
+  check-false("z", uppercase?('z'));
+  check-false("@", uppercase?('@'));
+  check-false("[", uppercase?('['));
+  check-false("`", uppercase?('`'));
+  check-false("{", uppercase?('{'));
 end test;