diff --git a/AGENTS.md b/AGENTS.md
index b97d6a0..655fb8b 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,6 +1,6 @@
 # sfcraft Agent 工作指南
 
-Fabric **纯服务端** mod,Minecraft **26.2**,Java 25,官方 Mojang 映射,自定义内容经 [Polymer](https://polymer.pb4.eu) 伪装成原版内容。整体结构见 [ARCHITECTURE.md](./ARCHITECTURE.md),先读它再动代码。
+Fabric **纯服务端** mod,Minecraft **26.3**,Java 25,官方 Mojang 映射,自定义内容经 [Polymer](https://polymer.pb4.eu) 伪装成原版内容。整体结构见 [ARCHITECTURE.md](./ARCHITECTURE.md),先读它再动代码。
 
 ## ⚠️ 工作范围(最高优先级规则)
 
@@ -22,23 +22,22 @@ Agent 的主要工作范围**只有**这两个包:
 ## 工具使用
 
 - 探索、读写代码**优先使用 IDE 的 MCP 工具**:`list_directory_tree`(代替 `ls`/`find`)、`read_file`(代替 `cat`/`sed`)、`search_text`/`search_regex`/`search_symbol`(代替 `rg`/`grep`)、`get_symbol_info`、`analyze_calls`;编辑用 `apply_patch`/`create_new_file`。
-- 查 26.2 原版类签名**优先用 `read_file` 直接读 loom 缓存 jar 内的类**(会反编译,可读上下文):`~/.gradle/caches/fabric-loom/minecraftMaven/net/minecraft/minecraft-merged-deobf/26.2/minecraft-merged-deobf-26.2.jar!/net/minecraft/.../SomeClass.class`,`javap` 仅作回退。
+- 查 26.3 原版类签名**优先用 `read_file` 直接读 loom 缓存 jar 内的类**(会反编译,可读上下文):`~/.gradle/caches/fabric-loom/minecraftMaven/net/minecraft/minecraft-merged-deobf/26.3/minecraft-merged-deobf-26.3.jar!/net/minecraft/.../SomeClass.class`,`javap` 仅作回退。
 - shell 只留给 MCP 做不了的事:gradle 编译/运行、git、文件权限操作等。
 
 ## 构建与验证
 
-仓库**没有** gradlew wrapper,使用系统 gradle + sdkman JDK:
+仓库自带 gradlew wrapper(**9.7.1** —— loom 1.18.x 要求 Gradle ≥ 9.7,Dockerfile 也走 `./gradlew`):
 
 ```bash
-export JAVA_HOME=~/.sdkman/candidates/java/25.0.1-amzn
-~/.sdkman/candidates/gradle/9.6.0/bin/gradle compileJava --console=plain   # 编译(mixin AP 会校验注入目标)
-~/.sdkman/candidates/gradle/9.6.0/bin/gradle runServer --console=plain    # dev 服务器(run/ 目录,EULA 已接受)
+./gradlew compileJava --console=plain   # 编译(mixin AP 会校验注入目标)
+./gradlew runServer --console=plain     # dev 服务器(run/ 目录,EULA 已接受)
 ```
 
-查 26.2 真实签名(解决 cannot find symbol 的最快办法):
+查 26.3 真实签名(解决 cannot find symbol 的最快办法):
 
 ```bash
-javap -cp ~/.gradle/caches/fabric-loom/minecraftMaven/net/minecraft/minecraft-merged-deobf/26.2/minecraft-merged-deobf-26.2.jar <类全名>
+javap -cp ~/.gradle/caches/fabric-loom/minecraftMaven/net/minecraft/minecraft-merged-deobf/26.3/minecraft-merged-deobf-26.3.jar <类全名>
 ```
 
 ## 新增/修改玩法特性的套路
@@ -65,6 +64,17 @@ javap -cp ~/.gradle/caches/fabric-loom/minecraftMaven/net/minecraft/minecraft-me
 
 ## 踩过的坑
 
+**26.3 变更**(相对 26.2,本次移植踩到的;写代码前先 javap 确认):
+
+- **方块 codec 体系整个删了**:`Block` 不再有 `MapCodec CODEC` / `codec()`,`simpleCodec()` 也没了 —— 自定义方块直接删掉这两段即可(原版 `LayeredCauldronBlock` 同样已无 codec)
+- `Entity.hurtMarked` 字段 → **`Entity.syncVelocity`**(仍是 public 字段,纯改名);`markHurt()` 照旧 protected
+- `LivingEntity.drop(ItemStack, boolean)` → **`drop(ItemStack, boolean, Prediction)`**(`net.minecraft.util.Prediction`,枚举 `PREDICTED`/`SERVER_ONLY`)。服务端逻辑自己发起的掉落用 `SERVER_ONLY`,客户端没预测过
+- `Entity.canSimulateMovement()` 变 **final**,改写点移到 **`getMoveSimulationType()`**(返回 `MoveSimulationType`,默认 `AUTHORITATIVE_SIDE`)。想让服务端始终模拟(纯服务端坐骑)返回 `AUTHORITATIVE_SIDE_AND_SERVER`
+- 战利品数字提供器拆成 `providers.number.ints` / `.floats` 两个子包,且全部 `Holder` 化:`UniformGenerator.between(1.0F, 3.0F)` → **`ContextIntProviders.between(1, 3)`**(返回 `Holder<ContextIntProvider>`,`SetItemCountFunction.setCount` 现在收的就是它)
+- `BonemealableBlock` 三个方法都多了一个 **`BonemealSource`** 参数(`INTERACTION`/`MOB`)
+- `MinecraftServer.clockManager()` 的 `getTotalTicks(clock)` 没了 → **`clockManager().getInstance(clock).totalTicks()`**(`ClockInstance` 接口:`totalTicks/partialTick/rate/isPaused`);`addTicks`/`setTotalTicks` 等写操作仍在 manager 上
+- `EnderMan` → **`Enderman`**(只是大小写,包没动)
+
 **26.2 Mojmap 重命名**(相对 1.21.x,写代码前先 javap 确认):
 
 - `ResourceLocation` → `net.minecraft.resources.Identifier`(`Identifier.fromNamespaceAndPath`)
@@ -76,7 +86,7 @@ javap -cp ~/.gradle/caches/fabric-loom/minecraftMaven/net/minecraft/minecraft-me
 - `MobEffects.SLOWNESS`(不是 MOVEMENT_SLOWDOWN);`SimpleContainer` 没有 addListener 了(覆写 `setChanged()` 持久化)
 - `GameProfile` 是 record(`name()`/`id()`);`sendOverlayMessage`/`sendSystemMessage` 取代 `displayClientMessage`;命令权限 `Commands.LEVEL_GAMEMASTERS.check(source.permissions())`
 
-**Polymer(0.17.3+26.2)**:
+**Polymer(0.18.0+26.3-rc-1 —— 上游还没出 26.3 正式版构建,先用 rc-1 那版)**:
 
 - `PacketContext` 在 `net.fabricmc.fabric.api.networking.v1.context.PacketContext`
 - BE 类型必须 `PolymerBlockUtils.registerBlockEntity`,实体类型必须 `PolymerEntityUtils.registerType`(`RegistryHelper` 已封装)
diff --git a/ARCHITECTURE.md b/ARCHITECTURE.md
index 954c137..be0d21a 100644
--- a/ARCHITECTURE.md
+++ b/ARCHITECTURE.md
@@ -1,6 +1,6 @@
 # SFCraft 架构
 
-Fabric **纯服务端** mod(`fabric.mod.json` 中 `environment: "server"`),Minecraft **26.2**,Java 25,**官方 Mojang 映射**。所有自定义内容通过 [Polymer](https://polymer.pb4.eu) 伪装成原版内容;玩家使用原版客户端 + 服务器发布的材质包即可游玩。
+Fabric **纯服务端** mod(`fabric.mod.json` 中 `environment: "server"`),Minecraft **26.3**,Java 25,**官方 Mojang 映射**。所有自定义内容通过 [Polymer](https://polymer.pb4.eu) 伪装成原版内容;玩家使用原版客户端 + 服务器发布的材质包即可游玩。
 
 ## 分层
 
diff --git a/Dockerfile b/Dockerfile
index 06483c6..cd40447 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,14 +14,24 @@ RUN  cd /mod && \
     cp /mod/build/libs/sfcraft-*-all.jar /sfcraft.jar
 
 FROM base AS justbackup-builder
-RUN git clone https://github.com/saltedfishclub/justbackup /mod
+# 跟随 MC 版本的分支。26.3 分支需先在上游仓库建好，否则此处会直接失败——
+# 这是刻意的:默认分支仍是 26.2(fabric.mod.json 要求 minecraft ~26.2),
+# 构建进 26.3 镜像只会在加载时才报错,不如在构建期暴露。
+ARG JUSTBACKUP_REF=26.3
+RUN git clone -b "$JUSTBACKUP_REF" https://github.com/saltedfishclub/justbackup /mod
 RUN cd /mod && \
     ./gradlew build && \
     rm -f /mod/build/libs/*sources.jar /mod/build/libs/*dev.jar && \
-    cp /mod/build/libs/justbackup-1.0.0.jar /justbackup.jar
+    cp /mod/build/libs/justbackup-*.jar /justbackup.jar
 
 FROM base AS carpet-builder
-RUN git clone https://github.com/saltedfishclub/fabric-carpet /mod
+# 同上。carpet 的 depends 写的是 minecraft >26.2,能装上但 mixin 是按旧版编译的,
+# 跑在 26.3 上会在 mixin apply 阶段炸,所以同样必须切到 26.3 分支。
+# ⚠️ 注意:26.3 分支目前只是合了上游 master,而上游自己还停在 26.3-snapshot-9
+# (对 26.3 正式版有 100+ 处编译错误)。等 gnembon 跟上 26.3 正式版、我们再合一次
+# 之前,这一层产出的 carpet 装进 26.3 服务器大概率仍然会崩。
+ARG CARPET_REF=26.3
+RUN git clone -b "$CARPET_REF" https://github.com/saltedfishclub/fabric-carpet /mod
 RUN cd /mod && \
     ./gradlew build && \
     rm -f /mod/build/libs/*sources.jar /mod/build/libs/*dev.jar && \
diff --git a/build.gradle b/build.gradle
index 9ed98e2..35ec42a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@ plugins {
     id 'maven-publish'
     id("io.freefair.lombok") version "9.5.0"
     id("com.gradleup.shadow") version "9.3.1"
-    id 'net.fabricmc.fabric-loom' version '1.17-SNAPSHOT'
+    id 'net.fabricmc.fabric-loom' version '1.18.1'
 }
 
 version = project.mod_version
@@ -37,7 +37,7 @@ dependencies {
     shadow("org.apache.commons:commons-compress:1.28.0")
     shadow("io.ib67.kiwi:lang:1.2.3-SNAPSHOT")
     shadow('com.github.houbb:pinyin:0.4.0')
-    def polymerVersion = "0.17.3+26.2"
+    def polymerVersion = "0.18.0+26.3-rc-1"
     implementation include("eu.pb4:polymer-core:$polymerVersion")
     implementation include("eu.pb4:polymer-virtual-entity:$polymerVersion")
     implementation include("eu.pb4:polymer-resource-pack:$polymerVersion")
diff --git a/gradle.properties b/gradle.properties
index d94eb2a..2f04609 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,8 +3,8 @@ org.gradle.jvmargs=-Xmx2G
 
 # Fabric Properties
 # check these on https://modmuss50.me/fabric.html
-minecraft_version=26.2
-loader_version=0.19.3
+minecraft_version=26.3
+loader_version=0.19.5
 
 
 # Mod Properties
@@ -14,4 +14,4 @@ archives_base_name=sfcraft
 
 # Dependencies
 # check this on https://modmuss50.me/fabric.html
-fabric_version=0.155.0+26.2
+fabric_version=0.160.5+26.3
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a950f0b..9a2adaf 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Wed Jul 22 12:25:27 GMT+08:00 2026
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.6.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.7.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/server-deploy/overrides/sfcraft/motd.txt b/server-deploy/overrides/sfcraft/motd.txt
index 8377061..2812174 100644
--- a/server-deploy/overrides/sfcraft/motd.txt
+++ b/server-deploy/overrides/sfcraft/motd.txt
@@ -1,2 +1,2 @@
-§b§lSaltedFish Club Server §r§8| §f26.2 §c§lv2.2
+§b§lSaltedFish Club Server §r§8| §f26.3 §c§lv2.2
 §8§lINVITED PLAYERS ONLY. 服务器启用白名单.
\ No newline at end of file
diff --git a/server-deploy/pack/index.toml b/server-deploy/pack/index.toml
index 115a97b..e771126 100644
--- a/server-deploy/pack/index.toml
+++ b/server-deploy/pack/index.toml
@@ -2,7 +2,7 @@ hash-format = "sha256"
 
 [[files]]
 file = "mods/fabric-api.pw.toml"
-hash = "dc5490cc1a9231b0d32ec3e72f9d34279fc1d1ff6fb5a7d288b1f36faec0a6a0"
+hash = "e3a8b560330802ec556f34a7de7a73bc712202359a657a36b39e6f85598bf8b8"
 metafile = true
 
 [[files]]
@@ -47,12 +47,12 @@ metafile = true
 
 [[files]]
 file = "mods/polymer.pw.toml"
-hash = "2a5626a6d9b61f968f294466e9756fbafa1c1208b4fb53c53cfc8d2afb42a857"
+hash = "2dec8c17d9d6fdf6dd93e2dc458c8d30ead86b2efc292490142841aacd4d3e95"
 metafile = true
 
 [[files]]
 file = "mods/simple-voice-chat.pw.toml"
-hash = "be7369da963f5326a771bbfa360365ac6ed939b01c2c268f4dd4a922718cd4a3"
+hash = "e55e25489644c7297a7f4cda6618437891fd0aba88e7f670a0439c3eadc14fc0"
 metafile = true
 
 [[files]]
diff --git a/server-deploy/pack/mods/fabric-api.pw.toml b/server-deploy/pack/mods/fabric-api.pw.toml
index 385a7ba..c386b4a 100644
--- a/server-deploy/pack/mods/fabric-api.pw.toml
+++ b/server-deploy/pack/mods/fabric-api.pw.toml
@@ -1,13 +1,13 @@
 name = "Fabric API"
-filename = "fabric-api-0.155.2+26.2.jar"
+filename = "fabric-api-0.160.5+26.3.jar"
 side = "both"
 
 [download]
-url = "https://cdn.modrinth.com/data/P7dR8mSH/versions/lVXlbH4w/fabric-api-0.155.2%2B26.2.jar"
+url = "https://cdn.modrinth.com/data/P7dR8mSH/versions/oCYG2H4L/fabric-api-0.160.5%2B26.3.jar"
 hash-format = "sha512"
-hash = "cc56984378a27c5bcd56374d6ffbb27a45c6bf3355add2ac6be9817ccac5854362249bf9d0147eb271a70fda2716129204e240d53c9aa876a2a7861f4c7f880f"
+hash = "494378477dd9571f49c27cc1eaee3f78f140b9d8bd860c757f453bee198fd5b8a9eee444069c595b0fb6f8cb6bc86d51ccddbcec8d782fd46ef2fb1d9ac22f16"
 
 [update]
 [update.modrinth]
 mod-id = "P7dR8mSH"
-version = "lVXlbH4w"
+version = "oCYG2H4L"
diff --git a/server-deploy/pack/mods/polymer.pw.toml b/server-deploy/pack/mods/polymer.pw.toml
index 75a080a..a26a911 100644
--- a/server-deploy/pack/mods/polymer.pw.toml
+++ b/server-deploy/pack/mods/polymer.pw.toml
@@ -1,13 +1,13 @@
 name = "Polymer"
-filename = "polymer-bundled-0.17.3+26.2.jar"
+filename = "polymer-bundled-0.18.0+26.3-rc-1.jar"
 side = "both"
 
 [download]
-url = "https://cdn.modrinth.com/data/xGdtZczs/versions/w0N4I45x/polymer-bundled-0.17.3%2B26.2.jar"
+url = "https://cdn.modrinth.com/data/xGdtZczs/versions/QBYrHLvh/polymer-bundled-0.18.0%2B26.3-rc-1.jar"
 hash-format = "sha512"
-hash = "1459edf99834bbbb2eff5f7df2e7159688ad88e20e8704bc473752e81a755963bb96c511641d53c9f7b4e5867436f7b49ef839e3b857c48ca54af93627c2a110"
+hash = "59cc2d99ead79e71b1b9df0751157f42cecf3cb0d67b4e9494ffe256e9375d9c111c7d126cc6a73161e16c39b6d5c87090aac5468ab08cd8982ed1ba55134869"
 
 [update]
 [update.modrinth]
 mod-id = "xGdtZczs"
-version = "w0N4I45x"
+version = "QBYrHLvh"
diff --git a/server-deploy/pack/mods/simple-voice-chat.pw.toml b/server-deploy/pack/mods/simple-voice-chat.pw.toml
index fd916d5..1e6d2d1 100644
--- a/server-deploy/pack/mods/simple-voice-chat.pw.toml
+++ b/server-deploy/pack/mods/simple-voice-chat.pw.toml
@@ -1,13 +1,13 @@
 name = "Simple Voice Chat"
-filename = "voicechat-fabric-2.6.21+26.2.jar"
+filename = "voicechat-fabric-2.6.23+26.3.jar"
 side = "both"
 
 [download]
-url = "https://cdn.modrinth.com/data/9eGKb6K1/versions/3SOh5iiX/voicechat-fabric-2.6.21%2B26.2.jar"
+url = "https://cdn.modrinth.com/data/9eGKb6K1/versions/3fRw6NfP/voicechat-fabric-2.6.23%2B26.3.jar"
 hash-format = "sha512"
-hash = "0308b2e18a05913faaf461530a475d2f5debbfb4d0a46107b512ce51166ceb6cfdbea468f7e21444a3e005655e51729c3764266f81c59b6228629b4866d16b28"
+hash = "fd62ca0b4048ab855e7f2436ecdf6c7301e546946afe2d7a3dfa3fb7c180636cbd971c0e9c5e62be4a86d67bbed54fa62ab4d4680c47ea0b366e49b9202ff42a"
 
 [update]
 [update.modrinth]
 mod-id = "9eGKb6K1"
-version = "3SOh5iiX"
+version = "3fRw6NfP"
diff --git a/server-deploy/pack/pack.toml b/server-deploy/pack/pack.toml
index 0f3f21f..d2fbaa9 100644
--- a/server-deploy/pack/pack.toml
+++ b/server-deploy/pack/pack.toml
@@ -6,11 +6,11 @@ pack-format = "packwiz:1.1.0"
 [index]
 file = "index.toml"
 hash-format = "sha256"
-hash = "d7c215cba51d8e9324316d5c236c6f03727012917340b2100c868614170ba69e"
+hash = "7524eced8051fa2ae3e84ae584afcf9863dd121db99555618b517447540daed1"
 
 [versions]
-fabric = "0.19.3"
-minecraft = "26.2"
+fabric = "0.19.5"
+minecraft = "26.3"
 
 [options]
-acceptable-game-versions = ["26.1", "26.1.2"]
+acceptable-game-versions = ["26.2"]
diff --git a/src/main/java/io/ib67/sfcraft/mixin/common/fixes/EndermanEntityMixin.java b/src/main/java/io/ib67/sfcraft/mixin/common/fixes/EndermanEntityMixin.java
index 9f7ee2e..82b8d79 100644
--- a/src/main/java/io/ib67/sfcraft/mixin/common/fixes/EndermanEntityMixin.java
+++ b/src/main/java/io/ib67/sfcraft/mixin/common/fixes/EndermanEntityMixin.java
@@ -1,13 +1,13 @@
 package io.ib67.sfcraft.mixin.common.fixes;
 
 import io.ib67.sfcraft.mixin.common.MobEntityMixin;
-import net.minecraft.world.entity.monster.EnderMan;
+import net.minecraft.world.entity.monster.Enderman;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
-@Mixin(EnderMan.class)
+@Mixin(Enderman.class)
 public abstract class EndermanEntityMixin extends MobEntityMixin {
     @Inject(at = @At("HEAD"), method = "requiresCustomPersistence", cancellable = true)
     private void sf$cannotDespawn(CallbackInfoReturnable<Boolean> cir) {
diff --git a/src/main/java/io/ib67/sfcraft/mixin/gameplay/mount/HoglinMountMixin.java b/src/main/java/io/ib67/sfcraft/mixin/gameplay/mount/HoglinMountMixin.java
index 216adf1..efdd656 100644
--- a/src/main/java/io/ib67/sfcraft/mixin/gameplay/mount/HoglinMountMixin.java
+++ b/src/main/java/io/ib67/sfcraft/mixin/gameplay/mount/HoglinMountMixin.java
@@ -12,6 +12,7 @@ import net.minecraft.world.level.Level;
 import net.minecraft.world.level.storage.ValueInput;
 import net.minecraft.world.level.storage.ValueOutput;
 import net.minecraft.world.phys.Vec3;
+import net.minecraft.world.entity.MoveSimulationType;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Unique;
 import org.spongepowered.asm.mixin.injection.At;
@@ -78,10 +79,12 @@ public abstract class HoglinMountMixin extends Animal implements MountAccess {
     }
 
     @Override
-    public boolean canSimulateMovement() {
-        // 骑手是 Player 时会被判为客户端权威,但纯服务端坐骑客户端不会模拟 → 强制服务端模拟
-        if (!level().isClientSide() && getControllingPassenger() != null) return true;
-        return super.canSimulateMovement();
+    public MoveSimulationType getMoveSimulationType() {
+        // 骑手是 Player 时会被判为客户端权威,但纯服务端坐骑客户端不会模拟 → 强制服务端模拟。
+        // 26.3 起 canSimulateMovement() 变 final,改写点移到这里:AUTHORITATIVE_SIDE_AND_SERVER
+        // 的语义就是"服务端永远模拟 + 权威端模拟",等价于原来的 !isClientSide 分支。
+        if (getControllingPassenger() != null) return MoveSimulationType.AUTHORITATIVE_SIDE_AND_SERVER;
+        return super.getMoveSimulationType();
     }
 
     @Override
diff --git a/src/main/java/io/ib67/sfcraft/mixin/gameplay/mount/RavagerMountMixin.java b/src/main/java/io/ib67/sfcraft/mixin/gameplay/mount/RavagerMountMixin.java
index d611593..e5bdf5d 100644
--- a/src/main/java/io/ib67/sfcraft/mixin/gameplay/mount/RavagerMountMixin.java
+++ b/src/main/java/io/ib67/sfcraft/mixin/gameplay/mount/RavagerMountMixin.java
@@ -12,6 +12,7 @@ import net.minecraft.world.level.Level;
 import net.minecraft.world.level.storage.ValueInput;
 import net.minecraft.world.level.storage.ValueOutput;
 import net.minecraft.world.phys.Vec3;
+import net.minecraft.world.entity.MoveSimulationType;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Unique;
 import org.spongepowered.asm.mixin.injection.At;
@@ -82,10 +83,12 @@ public abstract class RavagerMountMixin extends Raider implements MountAccess {
     }
 
     @Override
-    public boolean canSimulateMovement() {
-        // 骑手是 Player 时会被判为客户端权威,但纯服务端坐骑客户端不会模拟 → 强制服务端模拟
-        if (!level().isClientSide() && getControllingPassenger() != null) return true;
-        return super.canSimulateMovement();
+    public MoveSimulationType getMoveSimulationType() {
+        // 骑手是 Player 时会被判为客户端权威,但纯服务端坐骑客户端不会模拟 → 强制服务端模拟。
+        // 26.3 起 canSimulateMovement() 变 final,改写点移到这里:AUTHORITATIVE_SIDE_AND_SERVER
+        // 的语义就是"服务端永远模拟 + 权威端模拟",等价于原来的 !isClientSide 分支。
+        if (getControllingPassenger() != null) return MoveSimulationType.AUTHORITATIVE_SIDE_AND_SERVER;
+        return super.getMoveSimulationType();
     }
 
     @Override
diff --git a/src/main/java/io/ib67/sfcraft/module/FartFertilizerModule.java b/src/main/java/io/ib67/sfcraft/module/FartFertilizerModule.java
index 5a1fc22..8ebe411 100644
--- a/src/main/java/io/ib67/sfcraft/module/FartFertilizerModule.java
+++ b/src/main/java/io/ib67/sfcraft/module/FartFertilizerModule.java
@@ -16,6 +16,7 @@ import net.minecraft.sounds.SoundEvents;
 import net.minecraft.sounds.SoundSource;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.level.block.BonemealableBlock;
+import net.minecraft.world.level.block.BonemealSource;
 
 public class FartFertilizerModule extends ServerModule {
     private final Object2LongMap<Player> lastSneaked = new Object2LongOpenHashMap<>();
@@ -63,7 +64,7 @@ public class FartFertilizerModule extends ServerModule {
                                 }
                                 if (player.getRandom().nextInt(10) < 3) {
                                     ((BonemealableBlock) block).performBonemeal(wld,
-                                            wld.getRandom(), blockPos, state);
+                                            wld.getRandom(), blockPos, state, BonemealSource.INTERACTION);
                                 }
                             }
                         }
diff --git a/src/main/java/io/ib67/sfcraft/module/game/bomb/BombModule.java b/src/main/java/io/ib67/sfcraft/module/game/bomb/BombModule.java
index 9c11ebb..0e512d8 100644
--- a/src/main/java/io/ib67/sfcraft/module/game/bomb/BombModule.java
+++ b/src/main/java/io/ib67/sfcraft/module/game/bomb/BombModule.java
@@ -20,7 +20,7 @@ import net.minecraft.world.level.storage.loot.LootPool;
 import net.minecraft.world.level.storage.loot.entries.LootItem;
 import net.minecraft.world.level.storage.loot.functions.SetItemCountFunction;
 import net.minecraft.world.level.storage.loot.predicates.LootItemRandomChanceCondition;
-import net.minecraft.world.level.storage.loot.providers.number.UniformGenerator;
+import net.minecraft.world.level.storage.loot.providers.number.ints.ContextIntProviders;
 
 /**
  * 三种投掷炸弹(普通/黑曜石/烈焰)与它们的战利品注入(地牢箱、苦力怕掉落)。
@@ -76,11 +76,11 @@ public class BombModule extends ServerModule {
                 tableBuilder.withPool(LootPool.lootPool()
                         .when(LootItemRandomChanceCondition.randomChance(loot.dungeonBombChance))
                         .add(LootItem.lootTableItem(bomb)
-                                .apply(SetItemCountFunction.setCount(UniformGenerator.between(1.0F, 3.0F)))));
+                                .apply(SetItemCountFunction.setCount(ContextIntProviders.between(1, 3)))));
                 tableBuilder.withPool(LootPool.lootPool()
                         .when(LootItemRandomChanceCondition.randomChance(loot.dungeonObsidianBombChance))
                         .add(LootItem.lootTableItem(obsidianBomb)
-                                .apply(SetItemCountFunction.setCount(UniformGenerator.between(1.0F, 2.0F)))));
+                                .apply(SetItemCountFunction.setCount(ContextIntProviders.between(1, 2)))));
             }
             EntityTypes.CREEPER.getDefaultLootTable().ifPresent(creeperTable -> {
                 if (creeperTable.equals(key)) {
diff --git a/src/main/java/io/ib67/sfcraft/module/game/cauldron/AmethystCauldronBlock.java b/src/main/java/io/ib67/sfcraft/module/game/cauldron/AmethystCauldronBlock.java
index 0f37f8a..740db07 100644
--- a/src/main/java/io/ib67/sfcraft/module/game/cauldron/AmethystCauldronBlock.java
+++ b/src/main/java/io/ib67/sfcraft/module/game/cauldron/AmethystCauldronBlock.java
@@ -1,6 +1,5 @@
 package io.ib67.sfcraft.module.game.cauldron;
 
-import com.mojang.serialization.MapCodec;
 import eu.pb4.polymer.core.api.block.PolymerBlock;
 import eu.pb4.polymer.virtualentity.api.BlockWithElementHolder;
 import eu.pb4.polymer.virtualentity.api.ElementHolder;
@@ -37,7 +36,6 @@ import java.util.function.BiFunction;
 
 public class AmethystCauldronBlock extends BaseEntityBlock implements PolymerBlock, BlockWithElementHolder {
     public static final BooleanProperty HAS_WATER = BooleanProperty.create("has_water");
-    public static final MapCodec<AmethystCauldronBlock> CODEC = simpleCodec(AmethystCauldronBlock::new);
     // Polymer 会把该偏移加到方块中心(Vec3.atCenterOf), 因此这里是相对中心的偏移:
     // 结果约为 (x+0.5, y+0.55, z+0.5), 即锅内水中、锅沿以下、水平居中。
     private static final Vec3 ELEMENT_HOLDER_OFFSET = new Vec3(0.0, 0.05, 0.0);
@@ -57,11 +55,6 @@ public class AmethystCauldronBlock extends BaseEntityBlock implements PolymerBlo
         this.blockEntityFactory = factory;
     }
 
-    @Override
-    protected @NonNull MapCodec<? extends BaseEntityBlock> codec() {
-        return CODEC;
-    }
-
     @Override
     protected void createBlockStateDefinition(StateDefinition.Builder<Block, BlockState> builder) {
         builder.add(HAS_WATER);
diff --git a/src/main/java/io/ib67/sfcraft/module/game/cauldron/AmethystCauldronBlockEntity.java b/src/main/java/io/ib67/sfcraft/module/game/cauldron/AmethystCauldronBlockEntity.java
index 08a8f50..ef4f17a 100644
--- a/src/main/java/io/ib67/sfcraft/module/game/cauldron/AmethystCauldronBlockEntity.java
+++ b/src/main/java/io/ib67/sfcraft/module/game/cauldron/AmethystCauldronBlockEntity.java
@@ -25,6 +25,7 @@ import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.level.storage.ValueInput;
 import net.minecraft.world.level.storage.ValueOutput;
 import net.minecraft.world.phys.AABB;
+import net.minecraft.util.Prediction;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
@@ -124,7 +125,7 @@ public class AmethystCauldronBlockEntity extends BlockEntity {
         if (contents.isEmpty()) return InteractionResult.PASS;
         var stack = contents.removeLast();
         if (!player.getInventory().add(stack)) {
-            player.drop(stack, false);
+            player.drop(stack, false, Prediction.SERVER_ONLY);
         }
         level.playSound(null, getBlockPos(), SoundEvents.ITEM_FRAME_REMOVE_ITEM, SoundSource.BLOCKS, 0.6F, 1.0F);
         setChanged();
diff --git a/src/main/java/io/ib67/sfcraft/module/game/crystal/GravityCrystalBlock.java b/src/main/java/io/ib67/sfcraft/module/game/crystal/GravityCrystalBlock.java
index ec34b53..7ea4b27 100644
--- a/src/main/java/io/ib67/sfcraft/module/game/crystal/GravityCrystalBlock.java
+++ b/src/main/java/io/ib67/sfcraft/module/game/crystal/GravityCrystalBlock.java
@@ -1,6 +1,5 @@
 package io.ib67.sfcraft.module.game.crystal;
 
-import com.mojang.serialization.MapCodec;
 import eu.pb4.polymer.core.api.block.PolymerBlock;
 import net.fabricmc.fabric.api.networking.v1.context.PacketContext;
 import net.minecraft.core.BlockPos;
@@ -29,7 +28,6 @@ import java.util.function.BiFunction;
 
 public class GravityCrystalBlock extends BaseEntityBlock implements PolymerBlock {
     public static final IntegerProperty CHARGE = RespawnAnchorBlock.CHARGE;
-    public static final MapCodec<GravityCrystalBlock> CODEC = simpleCodec(GravityCrystalBlock::new);
 
     // GravityCrystalModule 注册方块实体类型后回填(方块与其方块实体类型互相引用,无法在构造器闭合)
     private BlockEntityType<GravityCrystalBlockEntity> blockEntityType;
@@ -46,11 +44,6 @@ public class GravityCrystalBlock extends BaseEntityBlock implements PolymerBlock
         this.blockEntityFactory = factory;
     }
 
-    @Override
-    protected MapCodec<? extends BaseEntityBlock> codec() {
-        return CODEC;
-    }
-
     @Override
     protected void createBlockStateDefinition(StateDefinition.Builder<Block, BlockState> builder) {
         builder.add(CHARGE);
diff --git a/src/main/java/io/ib67/sfcraft/module/game/crystal/GravityCrystalBlockEntity.java b/src/main/java/io/ib67/sfcraft/module/game/crystal/GravityCrystalBlockEntity.java
index cc8b43d..5008f91 100644
--- a/src/main/java/io/ib67/sfcraft/module/game/crystal/GravityCrystalBlockEntity.java
+++ b/src/main/java/io/ib67/sfcraft/module/game/crystal/GravityCrystalBlockEntity.java
@@ -56,7 +56,7 @@ public class GravityCrystalBlockEntity extends BlockEntity {
                 boosted = boosted.normalize().scale(maxSpeed);
             }
             entity.setDeltaMovement(boosted);
-            entity.hurtMarked = true;
+            entity.syncVelocity = true;
         }
     }
 
diff --git a/src/main/java/io/ib67/sfcraft/module/game/mapart/MapArtModule.java b/src/main/java/io/ib67/sfcraft/module/game/mapart/MapArtModule.java
index de624c2..4bd6117 100644
--- a/src/main/java/io/ib67/sfcraft/module/game/mapart/MapArtModule.java
+++ b/src/main/java/io/ib67/sfcraft/module/game/mapart/MapArtModule.java
@@ -34,6 +34,7 @@ import net.minecraft.world.item.Items;
 import net.minecraft.world.item.component.CustomData;
 import net.minecraft.world.item.component.TooltipDisplay;
 import net.minecraft.world.level.saveddata.maps.MapItemSavedData;
+import net.minecraft.util.Prediction;
 import org.jspecify.annotations.Nullable;
 
 import javax.imageio.ImageIO;
@@ -528,7 +529,7 @@ public class MapArtModule extends ServerModule {
 
     private static void give(ServerPlayer player, ItemStack stack) {
         if (!player.getInventory().add(stack)) {
-            player.drop(stack, false);
+            player.drop(stack, false, Prediction.SERVER_ONLY);
         }
     }
 
diff --git a/src/main/java/io/ib67/sfcraft/module/game/portal/ElytraPortalModule.java b/src/main/java/io/ib67/sfcraft/module/game/portal/ElytraPortalModule.java
index d9935b7..e824b9e 100644
--- a/src/main/java/io/ib67/sfcraft/module/game/portal/ElytraPortalModule.java
+++ b/src/main/java/io/ib67/sfcraft/module/game/portal/ElytraPortalModule.java
@@ -109,7 +109,7 @@ public class ElytraPortalModule extends ServerModule {
         player.setDeltaMovement(recorded);
         // 玩家移动是客户端权威的,而客户端同样预测到了这次撞墙。不补一个速度包的话,
         // 服务端这边写回去的速度会立刻被客户端的位置汇报盖掉。
-        player.hurtMarked = true;
+        player.syncVelocity = true;
     }
 
     public int getInstantTransitionTicks() {
diff --git a/src/main/java/io/ib67/sfcraft/module/game/token/PearlTokenItem.java b/src/main/java/io/ib67/sfcraft/module/game/token/PearlTokenItem.java
index 0391e99..80c1da9 100644
--- a/src/main/java/io/ib67/sfcraft/module/game/token/PearlTokenItem.java
+++ b/src/main/java/io/ib67/sfcraft/module/game/token/PearlTokenItem.java
@@ -22,6 +22,7 @@ import net.minecraft.world.item.Items;
 import net.minecraft.world.item.component.CustomData;
 import net.minecraft.world.item.component.ItemLore;
 import net.minecraft.world.level.Level;
+import net.minecraft.util.Prediction;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
@@ -93,7 +94,7 @@ public class PearlTokenItem extends Item implements PolymerItem {
         } else {
             stack.shrink(1);
             if (!player.getInventory().add(bound)) {
-                player.drop(bound, false);
+                player.drop(bound, false, Prediction.SERVER_ONLY);
             }
         }
         player.sendOverlayMessage(Component.translatable("message.sfcraft.token.bound"));
diff --git a/src/main/java/io/ib67/sfcraft/module/room/CreativeRoomModule.java b/src/main/java/io/ib67/sfcraft/module/room/CreativeRoomModule.java
index f08488a..de91580 100644
--- a/src/main/java/io/ib67/sfcraft/module/room/CreativeRoomModule.java
+++ b/src/main/java/io/ib67/sfcraft/module/room/CreativeRoomModule.java
@@ -211,7 +211,7 @@ public class CreativeRoomModule extends ServerModule {
     private int onQueryTime(CommandContext<CommandSourceStack> ctx) {
         var player = requirePlaygroundPlayer(ctx);
         if (player == null) return Command.SINGLE_SUCCESS;
-        long ticks = ctx.getSource().getServer().clockManager().getTotalTicks(playgroundClock(ctx.getSource()));
+        long ticks = ctx.getSource().getServer().clockManager().getInstance(playgroundClock(ctx.getSource())).totalTicks();
         player.sendSystemMessage(Component.translatable("message.sfcraft.playground.time_query", wrapTime(ticks)));
         return Command.SINGLE_SUCCESS;
     }