diff --git a/README.rst b/README.rst
index 472b2d5bf00..a9ee0ecd3d9 100644
--- a/README.rst
+++ b/README.rst
@@ -1,5 +1,5 @@
-Abjad 3.9
-=========
+Abjad 3.10
+==========
 
 Abjad helps composers build up complex pieces of music notation in iterative and
 incremental ways. Use Abjad to create a symbolic representation of all the notes, rests,
@@ -42,7 +42,7 @@ Make sure LilyPond is callable from the commandline:
 ..  code-block::
 
     $ lilypond --version
-    GNU LilyPond 2.23.8
+    GNU LilyPond 2.23.9
 
     Copyright (c) 1996--2022 by
     Han-Wen Nienhuys <hanwen@xs4all.nl>
diff --git a/abjad/_version.py b/abjad/_version.py
index 5acfdeeba91..6856eb1ae82 100644
--- a/abjad/_version.py
+++ b/abjad/_version.py
@@ -1,3 +1,3 @@
-__version_info__ = (3, 9)
+__version_info__ = (3, 10)
 __version__ = ".".join(str(_) for _ in __version_info__[:2])
 __version__ += "".join(__version_info__[2:])
diff --git a/docs/source/_mothballed/instruments.rst b/docs/source/_mothballed/instruments.rst
index f5c72b0e206..7378b663082 100644
--- a/docs/source/_mothballed/instruments.rst
+++ b/docs/source/_mothballed/instruments.rst
@@ -90,14 +90,14 @@ Use ``middle_c_sounding_pitch`` to get an instrument's level of transposition:
     >>> note = abjad.Note(violin.middle_c_sounding_pitch, 4)
     >>> abjad.show(note)
 
-Getting an instrument's allowable clefs
----------------------------------------
+Getting an instrument's clefs
+-----------------------------
 
-Use ``allowable_clefs`` to get clefs on which an instrument is conventionally notated:
+Use ``clefs`` to get clefs on which an instrument is conventionally notated:
 
 ::
 
-    >>> violin.allowable_clefs
+    >>> violin.clefs
 
 Customizing instrument properties
 ---------------------------------
@@ -107,7 +107,7 @@ You can change the properties of any instrument at initialization:
 ::
 
     >>> viola = abjad.Viola(
-    ...     allowable_clefs=("alto", "treble"),
+    ...     clefs=("alto", "treble"),
     ...     pitch_range=abjad.PitchRange("[C3, C6]"),
     ... )
 
diff --git a/docs/source/_mothballed/score-fragment-strings.rst b/docs/source/_mothballed/score-fragment-strings.rst
index 5a1a5803545..987fb00299e 100644
--- a/docs/source/_mothballed/score-fragment-strings.rst
+++ b/docs/source/_mothballed/score-fragment-strings.rst
@@ -393,7 +393,7 @@ We define more functions:
     ...     abjad.attach(metronome_mark, leaf)
     ...     time_signature = abjad.TimeSignature((6, 4))
     ...     abjad.attach(time_signature, leaf)
-    ...     instrument = abjad.Instrument(pitch_range="[C4, C6]")
+    ...     instrument = abjad.Instrument(pitch_range=abjad.PitchRange("[C4, C6]"))
     ...     abjad.attach(instrument, leaf)
     ...     string = r'\markup "Campana (La)"'
     ...     string = rf'\set Staff.instrumentName = {string}'
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 0a2adb2508c..70206063a67 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -39,7 +39,7 @@
     # navigation_depth=1 makes sidebar completely flat;
     # leave flat navigation in place forever:
     "navigation_depth": 1,
-    "style_nav_header_background": "#336699",
+    "style_nav_header_background": "#4488cc",
 }
 html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 project = "Abjad"
diff --git a/setup.py b/setup.py
index 5dfa393ccad..4127ad21ebd 100755
--- a/setup.py
+++ b/setup.py
@@ -60,8 +60,8 @@
 ]
 
 extras_require = {
-    "nauert": ["abjad-ext-nauert>=3.9"],
-    "rmakers": ["abjad-ext-rmakers>=3.9"],
+    "nauert": ["abjad-ext-nauert>=3.10"],
+    "rmakers": ["abjad-ext-rmakers>=3.10"],
 }
 
 keywords = [
@@ -74,7 +74,7 @@
     "black>=22.1.0",
     "flake8>=4.0.1",
     "isort>=5.10.1",
-    "mypy>=0.940",
+    "mypy>=0.960",
     "ply>=3.11",
     "pytest>=6.2.5",
     "pytest-cov>=3.0.0",