Port Sky's Grass Slabs to Forge 26.3

.github/workflows/ci.yml

@@ -1,18 +1,18 @@
-name: Sky's Grass Slabs 26.2 CI
+name: Sky's Grass Slabs 26.3 CI
 
 on:
   push:
     branches:
-      - master-26.2
+      - master-26.3
   pull_request:
     branches:
-      - master-26.2
+      - master-26.3
 
 permissions:
   contents: read
 
 concurrency:
-  group: skysgrassslabs-26.2-${{ github.workflow }}-${{ github.ref }}
+  group: skysgrassslabs-26.3-${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
 jobs:
@@ -107,21 +107,21 @@ jobs:
       - name: Upload audited release candidate
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
         with:
-          name: SkysGrassSlabs-26.2-${{ github.sha }}
+          name: SkysGrassSlabs-26.3-${{ github.sha }}
           if-no-files-found: error
           retention-days: 30
           path: |
-            build/libs/SkysGrassSlabs-1.1.2.2602001.jar
-            build/libs/SkysGrassSlabs-1.1.2.2602001-sources.jar
-            build/libs/SkysGrassSlabs-1.1.2.2602001-javadoc.jar
+            build/libs/SkysGrassSlabs-1.1.2.2603001.jar
+            build/libs/SkysGrassSlabs-1.1.2.2603001-sources.jar
+            build/libs/SkysGrassSlabs-1.1.2.2603001-javadoc.jar
             build/release/SHA256SUMS
             CHANGELOG.md
 
       - name: Upload diagnostics on failure
         if: failure()
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
         with:
-          name: SkysGrassSlabs-26.2-diagnostics-${{ github.sha }}
+          name: SkysGrassSlabs-26.3-diagnostics-${{ github.sha }}
           if-no-files-found: ignore
           retention-days: 14
           path: |

.github/workflows/codeql-analysis.yml

@@ -3,10 +3,10 @@ name: CodeQL
 on:
   push:
     branches:
-      - master-26.2
+      - master-26.3
   pull_request:
     branches:
-      - master-26.2
+      - master-26.3
   schedule:
     - cron: '53 7 * * 4'
 

.github/workflows/validate-gradle-build.yml

@@ -3,10 +3,10 @@ name: Validate Gradle Wrapper
 on:
   push:
     branches:
-      - master-26.2
+      - master-26.3
   pull_request:
     branches:
-      - master-26.2
+      - master-26.3
 
 permissions:
   contents: read

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+## 1.1.2.2603001 - Minecraft 26.3
+
+- Ported the complete feature set to Minecraft 26.3 and Forge 66.
+- Preserved all blocks, recipes, settings and supported world upgrades.
+- Updated shovel handling, bonemeal growth, world generation and data files
+  for Minecraft 26.3.
+- Corrected grass, snowy dirt and path slab models so their exposed inner
+  surfaces remain visible beside blocks.
+
 ## 1.1.2.2602001 - Minecraft 26.2
 
 - Corrected snowy grass slabs so their exposed top uses the snow texture

README.md

@@ -5,8 +5,8 @@ thin layer of turf. Grass spreads naturally between full blocks and slabs,
 while new Overworld terrain uses grass slabs to soften suitable one block
 steps.
 
-This branch is for Minecraft 26.2. Version `1.1.2.2602001` requires Forge
-65.1.0 or a compatible Forge 65 build and Java 25.
+This branch is for Minecraft 26.3. Version `1.1.2.2603001` requires Forge
+66.0.0 or a compatible Forge 66 build and Java 25.
 
 ## Installation
 
@@ -34,7 +34,7 @@ or updating world changing mods.
 - [Gameplay and recipes](docs/GAMEPLAY.md)
 - [Configuration](docs/CONFIGURATION.md)
 - [Upgrading an older world](docs/WORLD-UPGRADES.md)
-- [Release notes](docs/RELEASE-1.1.2.2602001.md)
+- [Release notes](docs/RELEASE-1.1.2.2603001.md)
 
 ## License
 

build.gradle

@@ -37,15 +37,15 @@ def mavenizerLicense = mavenizerToolsDirectory.file('LICENSE-MAVENIZER.txt')
 def mavenizerReadme = mavenizerToolsDirectory.file('README.md')
 def mavenizerFixtureChecksums = [
         (mavenizerCompatibilityJar.asFile):
-                '5ABAB52A3F1BE115381C3CE80D5FD38DBE6C9F4C0B9ECF70A957700EC90FB88B',
+                '4150926F33A696B2088AB2675C1C3B45745CE4F9F2DEB31CCD88C9ADC834062F',
         (mavenizerRuleManifest.asFile):
-                '9437E03FC5E1CB5D605D72F0538C4DF4417B64DB0A57D0AABDC5184781517AC1',
+                '829400D74ECB1BF0CC6107D9980B8328365E3F56D9A5342002D8DF340571BDB7',
         (mavenizerSourcePatch.asFile):
-                '2DA8DD0FD5F112F5B7591113AED06D9A58C584A25F8705E26445A6D2E9D5C78E',
+                '9F0C34529D41C9CD5804C32608FE548D09A0AC3A95D337EE2EF4377680C1B2DD',
         (mavenizerLicense.asFile):
                 '20C17D8B8C48A600800DFD14F95D5CB9FF47066A9641DDEAB48DC54AEC96E331',
         (mavenizerReadme.asFile):
-                'EAD1477F393897C491A10FB86178213A99C360571A8063D551DA0579DF65BA6F'
+                'A35B80BA8D7557A31E0378787C06FE86C8C627061BF313A6886205F62A46C09F'
 ]
 
 // ForgeGradle invokes Mavenizer while configuring the project. Verify the
@@ -87,7 +87,7 @@ java {
     withJavadocJar()
 }
 
-// ForgeGradle declares Slime Launcher as Java 8-compatible, but Forge 65 and
+// ForgeGradle declares Slime Launcher as Java 8-compatible, but Forge 66 and
 // this project run entirely on Java 25. Bind the launcher explicitly so a
 // clean setup does not depend on an unrelated legacy JDK.
 fgtools.configure('slimelauncher') {
@@ -261,7 +261,7 @@ tasks.named('check').configure {
 
 // A Forge process is not green merely because it returns exit code zero. The
 // loader can log a worldgen or linkage failure and still shut down normally.
-def acceptedForge65LogNoise = [
+def acceptedForge66LogNoise = [
         ~/FML appears to be missing any signature data/,
         ~/Found multiple arguments for option fml\.mcVersion/,
         ~/Found multiple arguments for option fml\.forgeVersion/,
@@ -281,7 +281,7 @@ def packagedOfflineAuthenticationNoise = [
         ~/\/ERROR\] \[com\.mojang\.realmsclient\.RealmsAvailability\/\]: Couldn't connect to realms$/,
         ~/^com\.mojang\.realmsclient\.exception\.RealmsServiceException: Realms authentication error with message 'java\.lang\.RuntimeException: Failed to parse into SignedJWT: validation-token'$/
 ]
-// Forge 65 asks OSHI for Windows performance counters while preloading its
+// Forge 66 asks OSHI for Windows performance counters while preloading its
 // system report. Control Forge runtimes reproduced these exact signatures and
 // continued to Done. Keep the exception scoped to Windows runs that opt in.
 def windowsOshiSystemReportNoise = [
@@ -319,7 +319,7 @@ def assertRuntimeLogsClean = { File runDirectory, String context, Set priorCrash
         log.eachLine('UTF-8') { String line ->
             lineNumber++
             boolean unexpectedSeverity = line ==~ /.*\/(?:ERROR|FATAL)\].*/
-            boolean knownNoise = acceptedForge65LogNoise.any { line =~ it }
+            boolean knownNoise = acceptedForge66LogNoise.any { line =~ it }
                     || contextNoise.any { line =~ it }
             boolean exceptionRoot = line ==~ /^(?:Caused by: )?[A-Za-z_$][A-Za-z0-9_.$]*(?:Exception|Error)(?::.*)?$/
             boolean fatalText = line.contains('Encountered an unexpected exception') ||
@@ -359,7 +359,7 @@ tasks.register('runtimeLogScannerTest') {
                 'java.lang.UnsupportedOperationException: sun.misc.Unsafe unavailable\n'
                 + 'java.lang.UnsupportedOperationException: Native access (restricted methods) is not enabled for the io.netty.common module.\n',
                 'UTF-8')
-        assertRuntimeLogsClean(probe, 'scanner-forge65-netty-noise-probe', [] as Set)
+        assertRuntimeLogsClean(probe, 'scanner-forge66-netty-noise-probe', [] as Set)
         new File(logs, 'debug.log').delete()
         new File(logs, 'latest.log').setText(
                 '[Download-2/ERROR] [net.minecraft.client.Minecraft/]: Failed to fetch user properties\n'
@@ -430,7 +430,7 @@ def processedMainResourcesPath = {
     project.relativePath(processedMainResourcesDirectory()).replace('\\', '/')
 }
 
-// ForgeGradle 7 models Forge 65 source sets as merged output directories.
+// ForgeGradle 7 models Forge 66 source sets as merged output directories.
 // Compile through staging so Gradle and Eclipse never write classes and
 // processed resources to the same location at the same time.
 def compiledMainClasses = layout.buildDirectory.dir('compiled-classes/main')
@@ -529,13 +529,13 @@ repositories {
 dependencies {
     implementation minecraft.dependency(
             "net.minecraftforge:forge:${project.minecraft_version}-${project.forge_version}")
-    testImplementation 'net.minecraftforge:eventbus-validator:7.0.1'
+    testImplementation 'net.minecraftforge:eventbus-validator:7.0.6'
     testImplementation 'junit:junit:4.13.2'
 }
 
 def verifyMavenizerCompatibilityFixture = tasks.register('verifyMavenizerCompatibilityFixture') {
     group = 'verification'
-    description = 'Verifies the checksum-sealed Forge 26.2 Mavenizer compatibility fixture.'
+    description = 'Verifies the checksum-sealed Forge 26.3 Mavenizer compatibility fixture.'
     inputs.files mavenizerFixtureChecksums.keySet()
     doLast {
         mavenizerFixtureChecksums.each { File fixture, String expected ->
@@ -550,13 +550,13 @@ def verifyMavenizerCompatibilityFixture = tasks.register('verifyMavenizerCompati
         }
 
         def parsed = new JsonSlurper().parse(mavenizerRuleManifest.asFile)
-        String target = 'net.minecraftforge:forge:26.2-65.1.0'
+        String target = 'net.minecraftforge:forge:26.3-66.0.0'
         if (parsed.schema != 1 || parsed.targets.keySet() != [target] as Set) {
             throw new GradleException('Mavenizer target-rule manifest has unexpected targets or schema')
         }
         def forgeRules = parsed.targets[target]
         if (forgeRules.expectedApplications != 0 || !forgeRules.rules.isEmpty()) {
-            throw new GradleException('Forge 65 Mavenizer target must be an explicit zero-rule qualification')
+            throw new GradleException('Forge 66 Mavenizer target must be an explicit zero-rule qualification')
         }
 
         ZipFile fixtureJar = new ZipFile(mavenizerCompatibilityJar.asFile)
@@ -605,7 +605,7 @@ def verifyMavenizerCompatibilityFixture = tasks.register('verifyMavenizerCompati
         String licenseText = mavenizerLicense.asFile.getText('UTF-8')
         if (!readme.contains('6968241ce7a0a902cdc1c534b976e8373a423091')
                 || !readme.contains('Temurin `25.0.3+9`')
-                || !readme.contains('26.2-65.1.0')) {
+                || !readme.contains('26.3-66.0.0')) {
             throw new GradleException('Mavenizer provenance, target, or Java 25 build instructions are incomplete')
         }
         if (!patchText.contains('SourceCompatibilityPatcher.java')
@@ -686,12 +686,12 @@ def releaseFiles = provider {
 tasks.register('verifyReleaseMetadata') {
     group = 'verification'
     doLast {
-        if (project.minecraft_version != '26.2' || project.forge_version != '65.1.0' ||
-                project.mapping_channel != 'official' || project.mapping_version != '26.2' ||
+        if (project.minecraft_version != '26.3' || project.forge_version != '66.0.0' ||
+                project.mapping_channel != 'official' || project.mapping_version != '26.3' ||
                 project.loader_name != 'forge' || project.loader_code != '1' ||
                 project.java_version != '25' || project.java_toolchain_version != '25.0.3+9' ||
                 project.gradle_java_version != '25' || project.curseforge_project_id != '1677588') {
-            throw new GradleException('Unexpected 26.2 release metadata')
+            throw new GradleException('Unexpected 26.3 release metadata')
         }
     }
 }
@@ -769,8 +769,8 @@ tasks.register('verifyReleaseArtifacts') {
 
             String metadata = zip.getInputStream(zip.getEntry('META-INF/mods.toml'))
                     .getText(StandardCharsets.UTF_8.name())
-            if (!metadata.contains('versionRange="[26.2,26.3,)"') ||
-                    !metadata.contains('versionRange="[65,)"')) {
+            if (!metadata.contains('versionRange="[26.3,26.4,)"') ||
+                    !metadata.contains('versionRange="[66,)"')) {
                 throw new GradleException('Packaged Forge metadata targets the wrong version')
             }
 
@@ -987,9 +987,9 @@ eclipse {
     synchronizationTasks 'isolateEclipseProductionRuns'
 }
 
-def syncForge65EclipseLaunches = tasks.register('syncForge65EclipseLaunches') {
+def syncForge66EclipseLaunches = tasks.register('syncForge66EclipseLaunches') {
     group = 'ide'
-    description = 'Normalizes ForgeGradle 7 Eclipse launch outputs for Forge 65.'
+    description = 'Normalizes ForgeGradle 7 Eclipse launch outputs for Forge 66.'
     doLast {
         String mainOutput = new File(projectDir, 'bin/main').absolutePath
         String gameTestOutput = new File(projectDir, 'bin/gameTest').absolutePath
@@ -1059,14 +1059,14 @@ def syncForge65EclipseLaunches = tasks.register('syncForge65EclipseLaunches') {
 }
 
 tasks.matching { it.name == 'genEclipseRuns' }.configureEach {
-    finalizedBy syncForge65EclipseLaunches
+    finalizedBy syncForge66EclipseLaunches
 }
 
 def isolateEclipseProductionRuns = tasks.register('isolateEclipseProductionRuns') {
     group = 'ide'
     description = 'Prepares the complete ForgeGradle 7 Eclipse project configuration.'
     dependsOn tasks.named('genEclipseRuns')
-    dependsOn syncForge65EclipseLaunches
+    dependsOn syncForge66EclipseLaunches
     dependsOn configureEclipseBuildship
     dependsOn prepareEclipseResources
 }

ci-fixtures/tools/README.md

@@ -2,7 +2,7 @@
 
 This directory contains a build-only derivative of MinecraftForge's
 MinecraftMavenizer `0.5.21`. It is used only while ForgeGradle prepares the
-exact Forge `26.2-65.1.0` development dependency and is excluded from every
+exact Forge `26.3-66.0.0` development dependency and is excluded from every
 OreSpawn publication artifact.
 
 ## Provenance and licence
@@ -21,13 +21,13 @@ declaration and one accessor in that record. Missing, partial, duplicate or
 ambiguous states fail preparation. Targets without an explicit rule set are
 left unchanged.
 
-Forge `26.2-65.1.0` compiles without source compatibility edits. Its explicit
+Forge `26.3-66.0.0` compiles without source compatibility edits. Its explicit
 zero-rule entry proves that result is intentional and target-qualified rather
 than an accidental fall-through. A marker beside Mavenizer's output records
 the target and manifest SHA-256. Reprocessing the same source is idempotent.
 
 The derivative also propagates Gradle offline mode when the build sets
-`ORESPAWN_MAVENIZER_OFFLINE=true`. Mavenizer, OreSpawn and Minecraft 26.2 all
+`ORESPAWN_MAVENIZER_OFFLINE=true`. Mavenizer, Sky's Grass Slabs and Minecraft 26.3 all
 run and compile with Java 25.
 
 ## Rebuild

ci-fixtures/tools/minecraft-mavenizer-0.5.21-orespawn-compat.patch

@@ -1,7 +1,7 @@
-From 96468d9931e7f1448d9fb00f13ec0a6559ee0054 Mon Sep 17 00:00:00 2001
-From: OreSpawn Build Fixture <orespawn-fixture@invalid.local>
-Date: Fri, 28 Aug 2026 15:21:10 +0100
-Subject: [PATCH] Add target-aware source compatibility rules
+From debd1358466af4d21ae25079ade85486fb267762 Mon Sep 17 00:00:00 2001
+From: JohnBraham <johnbraham1978@outlook.com>
+Date: Sat, 19 Sep 2026 16:12:24 +0100
+Subject: [PATCH] Qualify Mavenizer for Forge 26.3
 
 ---
  build.gradle                                  |   2 +-
@@ -364,18 +364,19 @@ index 0000000..4d72d34
 +}
 diff --git a/src/main/resources/META-INF/orespawn/minecraft-source-compatibility.json b/src/main/resources/META-INF/orespawn/minecraft-source-compatibility.json
 new file mode 100644
-index 0000000..702d759
+index 0000000..3451901
 --- /dev/null
 +++ b/src/main/resources/META-INF/orespawn/minecraft-source-compatibility.json
 @@ -0,0 +1,9 @@
 +{
 +  "schema": 1,
 +  "targets": {
-+    "net.minecraftforge:forge:26.2-65.1.0": {
++    "net.minecraftforge:forge:26.3-66.0.0": {
 +      "expectedApplications": 0,
 +      "rules": []
 +    }
 +  }
 +}
 -- 
 2.55.0.windows.3
+

ci-fixtures/tools/minecraft-source-compatibility.json

@@ -1,7 +1,7 @@
 {
   "schema": 1,
   "targets": {
-    "net.minecraftforge:forge:26.2-65.1.0": {
+    "net.minecraftforge:forge:26.3-66.0.0": {
       "expectedApplications": 0,
       "rules": []
     }

docs/RELEASE-1.1.2.2603001.md

@@ -0,0 +1,15 @@
+# Sky's Grass Slabs 1.1.2 for Minecraft 26.3
+
+This release brings the complete Sky's Grass Slabs feature set to Minecraft
+26.3 and Forge 66. Dirt, grass and path slabs, turf, grass spreading, shovel
+flattening and terrain smoothing retain their established behaviour.
+
+Slab surfaces remain visible when another block is placed above a bottom slab
+or below a top slab. The correction also covers snowy dirt and path slabs.
+
+Existing Sky's Grass Slabs worlds and the supported older slab migrations
+remain compatible. Back up an existing world before changing its Minecraft or
+Forge version.
+
+Requires Minecraft 26.3, Forge 66.0.0 or a compatible Forge 66 build, and
+Java 25.

docs/WORLD-UPGRADES.md

@@ -6,7 +6,7 @@ world has been checked in game.
 
 ## Sky's Grass Slabs content
 
-Install `SkysGrassSlabs-1.1.2.2602001.jar` before opening a world that used an
+Install `SkysGrassSlabs-1.1.2.2603001.jar` before opening a world that used an
 earlier release. The permanent dirt slab, grass slab, path slab and turf IDs
 are unchanged.
 
@@ -70,8 +70,8 @@ When both mods remain installed, their content is left alone by default. See
 ## Modpack checklist
 
 1. Back up the complete instance and world.
-2. Update Forge and every required mod to a matching Minecraft 26.2 build.
-3. Install the 26.2 Sky's Grass Slabs jar before the first upgraded start.
+2. Update Forge and every required mod to a matching Minecraft 26.3 build.
+3. Install the 26.3 Sky's Grass Slabs jar before the first upgraded start.
 4. Read the complete Forge missing content list before confirming it.
 5. Check representative slabs, turf, paths, inventories and old terrain.
 6. Stop and start the upgraded copy once more, then repeat the checks.