diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,9 @@
+arduino-copilot (1.7.3) upstream; urgency=medium
+
+  * Update to copilot-3.11.
+
+ -- Joey Hess <id@joeyh.name>  Thu, 08 Sep 2022 10:05:21 -0400
+
 arduino-copilot (1.7.2) upstream; urgency=medium
 
   * Update to copilot-3.10.
diff --git a/Examples/Blink/stack.yaml b/Examples/Blink/stack.yaml
--- a/Examples/Blink/stack.yaml
+++ b/Examples/Blink/stack.yaml
@@ -3,18 +3,19 @@
 - '../..'
 resolver: lts-18.9
 extra-deps: 
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
diff --git a/Examples/Button/stack.yaml b/Examples/Button/stack.yaml
--- a/Examples/Button/stack.yaml
+++ b/Examples/Button/stack.yaml
@@ -3,18 +3,19 @@
 - '../..'
 resolver: lts-18.9
 extra-deps: 
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
diff --git a/Examples/ButtonHold/stack.yaml b/Examples/ButtonHold/stack.yaml
--- a/Examples/ButtonHold/stack.yaml
+++ b/Examples/ButtonHold/stack.yaml
@@ -3,18 +3,19 @@
 - '../..'
 resolver: lts-18.9
 extra-deps: 
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
diff --git a/Examples/EEPROM/stack.yaml b/Examples/EEPROM/stack.yaml
--- a/Examples/EEPROM/stack.yaml
+++ b/Examples/EEPROM/stack.yaml
@@ -3,18 +3,19 @@
 - '../..'
 resolver: lts-18.9
 extra-deps: 
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
diff --git a/Examples/EEPROMrange/stack.yaml b/Examples/EEPROMrange/stack.yaml
--- a/Examples/EEPROMrange/stack.yaml
+++ b/Examples/EEPROMrange/stack.yaml
@@ -3,18 +3,19 @@
 - '../..'
 resolver: lts-18.9
 extra-deps: 
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
diff --git a/Examples/Random/stack.yaml b/Examples/Random/stack.yaml
--- a/Examples/Random/stack.yaml
+++ b/Examples/Random/stack.yaml
@@ -3,18 +3,19 @@
 - '../..'
 resolver: lts-18.9
 extra-deps: 
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
diff --git a/Examples/SerialPort/stack.yaml b/Examples/SerialPort/stack.yaml
--- a/Examples/SerialPort/stack.yaml
+++ b/Examples/SerialPort/stack.yaml
@@ -3,18 +3,19 @@
 - '../..'
 resolver: lts-18.9
 extra-deps: 
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
diff --git a/Examples/WaterHeater/stack.yaml b/Examples/WaterHeater/stack.yaml
--- a/Examples/WaterHeater/stack.yaml
+++ b/Examples/WaterHeater/stack.yaml
@@ -3,18 +3,19 @@
 - '../..'
 resolver: lts-18.9
 extra-deps: 
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
diff --git a/arduino-copilot.cabal b/arduino-copilot.cabal
--- a/arduino-copilot.cabal
+++ b/arduino-copilot.cabal
@@ -1,5 +1,5 @@
 Name: arduino-copilot
-Version: 1.7.2
+Version: 1.7.3
 Cabal-Version: >= 1.10
 License: BSD3
 Maintainer: Joey Hess <id@joeyh.name>
@@ -114,10 +114,10 @@
     Copilot.Arduino.Main
   Build-Depends:
     base (>= 4.5 && < 5),
-    sketch-frp-copilot (== 1.0.3),
-    copilot (== 3.10.*),
-    copilot-c99 (== 3.10.*),
-    copilot-language (== 3.10.*),
+    sketch-frp-copilot (== 1.0.4),
+    copilot (== 3.11.*),
+    copilot-c99 (== 3.11.*),
+    copilot-language (== 3.11.*),
     filepath,
     directory,
     mtl,
diff --git a/stack.yaml b/stack.yaml
--- a/stack.yaml
+++ b/stack.yaml
@@ -2,18 +2,19 @@
 - '.'
 resolver: lts-18.9
 extra-deps:
-- sketch-frp-copilot-1.0.3
-- copilot-3.10
-- copilot-c99-3.10
-- copilot-core-3.10
-- copilot-language-3.10
-- copilot-libraries-3.10
-- copilot-theorem-3.10
+- sketch-frp-copilot-1.0.4
+- copilot-3.11
+- copilot-c99-3.11
+- copilot-core-3.11
+- copilot-language-3.11
+- copilot-libraries-3.11
+- copilot-theorem-3.11
+- copilot-interpreter-3.11
 - ansi-terminal-0.9.1
 - bimap-0.3.3
-- language-c99-0.1.2
-- language-c99-simple-0.1.2
-- language-c99-util-0.1.1
+- language-c99-0.2.0
+- language-c99-simple-0.2.2
+- language-c99-util-0.2.0
 - optparse-applicative-0.15.1.0
 - panic-0.4.0.1
 - parameterized-utils-2.1.3.0
@@ -24,4 +25,3 @@
 - versions-4.0.3
 - zenc-0.1.2
 - bv-sized-1.0.2
-explicit-setup-deps:
