From 5a488f9008b2ec9cdf7d9edf02361329610fd046 Mon Sep 17 00:00:00 2001
From: chengyuli <chengyuli1@huawei.com>
Date: Wed, 18 Jun 2025 03:03:52 +0000
Subject: [PATCH] add
 zh-cn/release-notes/changelogs/OpenHarmony_6.0/changelogs-arkts.md.

Signed-off-by: chengyuli <chengyuli1@huawei.com>
---
 .../OpenHarmony_6.0/changelogs-arkts.md       | 69 +++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 zh-cn/release-notes/changelogs/OpenHarmony_6.0/changelogs-arkts.md 

diff --git a/zh-cn/release-notes/changelogs/OpenHarmony_6.0/changelogs-arkts.md  b/zh-cn/release-notes/changelogs/OpenHarmony_6.0/changelogs-arkts.md 
new file mode 100644
index 00000000000..833f6b053c3
--- /dev/null
+++ b/zh-cn/release-notes/changelogs/OpenHarmony_6.0/changelogs-arkts.md 	
@@ -0,0 +1,69 @@
+## cl.arkts.1 TreeSet 扩容导致比较器丢失问题，新增OrderedSet/OrderedMap修复问题，废弃TreeSet/TreeMap容器
+
+**访问级别**
+
+公开接口
+
+**变更原因**
+
+使用TreeSet/TreeMap模块的add接口触发扩容时，TreeSet/TreeMap自定义比较器会在扩容后丢失，导致之后进行默认排序。
+
+**变更影响**
+
+**变更前：**
+
+对于下述代码，**实际执行结果中预期为false、false、false、false、false，实际执行结果为false、false、false、true、true**，原因在于扩容后比较器丢失，remove(a1)失败，后续行为异常。
+
+```ts
+import TreeSet from '@kit.ArkTS';
+class A {
+time: number;
+
+constructor(time: number) {
+    this.time = time;
+}
+
+static readonly compared = ((first: A, second: A): number => {
+        return first.time - second.time;
+    }) as Function as (first: A, second: A) => boolean;
+}
+
+const a1 = new A(1);
+const a2 = new A(2);
+const a3 = new A(3);
+const a4 = new A(4);
+const a5 = new A(5);
+const map = new TreeSet<A>(A.compared); // 用例差异点
+map.add(a1);
+map.add(a2);
+map.add(a3);
+map.add(a4);
+map.add(a5);
+for (let i = 0; i < 5; ++i) {
+    map.remove(a1);
+    console.log('spt', i, map.has(a1));
+    map.add(a1);
+}
+```
+
+**变更后：**
+
+TaggedTree比较器扩容前后一致，TaggedTree的所有add、remove都用同一个比较规则，**输出结果为false、false、false、false、false，与预期一致。**
+
+**起始 API Level**
+
+8
+
+**变更发生版本**
+
+OpenHarmony SDK 6.0
+
+**变更的接口/组件**
+
+TreeSet/TreeMap
+
+**适配指导**
+
+原本未使用自定义比较器时，不受影响；
+
+若使用到自定义比较器时，建议切换为新增的OrderedSet/OrderedMap。
\ No newline at end of file
-- 
Gitee