PaperMC/paper-server/nms-patches/net/minecraft/world/entity/monster/EntityStrider.patch

--- a/net/minecraft/world/entity/monster/EntityStrider.java
+++ b/net/minecraft/world/entity/monster/EntityStrider.java
@@ -321,7 +321,13 @@
         IBlockData iblockdata1 = this.aU();
         boolean flag = iblockdata.a((Tag) TagsBlock.STRIDER_WARM_BLOCKS) || iblockdata1.a((Tag) TagsBlock.STRIDER_WARM_BLOCKS) || this.b((Tag) TagsFluid.LAVA) > 0.0D;
 
-        this.setShivering(!flag);
+        // CraftBukkit start
+        if (!flag ^ this.isShivering()) {
+            if (org.bukkit.craftbukkit.event.CraftEventFactory.callStriderTemperatureChangeEvent(this, !flag)) {
+                this.setShivering(!flag);
+            }
+        }
+        // CraftBukkit end
         super.tick();
         this.fE();
         this.checkBlockCollisions();