.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
       matrix:
         # Use these Java versions
         java: [
-          16    # Minimum supported by Minecraft
+          17    # Minimum supported by Minecraft
         ]
         # and run on both Linux and Windows
         os: [ubuntu-20.04, windows-latest]

build.gradle

@@ -3,8 +3,8 @@ plugins {
 	id 'maven-publish'
 }
 
-sourceCompatibility = JavaVersion.VERSION_16
-targetCompatibility = JavaVersion.VERSION_16
+sourceCompatibility = JavaVersion.VERSION_17
+targetCompatibility = JavaVersion.VERSION_17
 
 archivesBaseName = project.archives_base_name
 version = project.mod_version
@@ -52,8 +52,8 @@ tasks.withType(JavaCompile).configureEach {
 	// If Javadoc is generated, this must be specified in that task too.
 	it.options.encoding = "UTF-8"
 
-	// Minecraft 1.17 (21w19a) upwards uses Java 16.
-	it.options.release = 16
+	// Minecraft 1.18 (pre-release 2) upwards uses Java 17.
+	it.options.release = 17
 }
 
 java {

src/main/resources/fabric.mod.json

@@ -29,6 +29,6 @@
   "depends": {
     "fabricloader": ">=0.11.3",
     "minecraft": "1.18.x",
-    "java": ">=16"
+    "java": ">=17"
   }
 }

src/main/resources/modid.mixins.json

@@ -2,7 +2,7 @@
   "required": true,
   "minVersion": "0.8",
   "package": "nl.andrewlalis.speed_carts.mixin",
-  "compatibilityLevel": "JAVA_16",
+  "compatibilityLevel": "JAVA_17",
   "mixins": [
     "AbstractMinecartMixin"
   ],