📝 Update changelogs

app/changelogs/v3.1.9/v3.1.9.md

@@ -26,6 +26,7 @@ Below are the detailed changes in this version.
 * [Add transparency to the background color of some blocks](https://github.com/siyuan-note/siyuan/issues/12713)
 * [Improve WebDAV/S3 data sync request timeout settings](https://github.com/siyuan-note/siyuan/issues/12734)
 * [Improve export of heading levels in embedded blocks](https://github.com/siyuan-note/siyuan/issues/12741)
+* [Improve performance for data indexing](https://github.com/siyuan-note/siyuan/issues/12777)
 
 ### Bugfix
 

app/changelogs/v3.1.9/v3.1.9_zh_CHT.md

@@ -26,6 +26,7 @@
 * [為某些塊的背景顏色添加透明度](https://github.com/siyuan-note/siyuan/issues/12713)
 * [改進 WebDAV/S3 資料同步請求逾時設定](https://github.com/siyuan-note/siyuan/issues/12734)
 * [改進嵌入區塊的標題層級匯出](https://github.com/siyuan-note/siyuan/issues/12741)
+* [改進資料索引效能](https://github.com/siyuan-note/siyuan/issues/12777)
 
 ### 修復缺陷
 

app/changelogs/v3.1.9/v3.1.9_zh_CN.md

@@ -26,6 +26,7 @@
 * [为某些块的背景颜色添加透明度](https://github.com/siyuan-note/siyuan/issues/12713)
 * [改进 WebDAV/S3 数据同步请求超时设置](https://github.com/siyuan-note/siyuan/issues/12734)
 * [改进嵌入块的标题级别导出](https://github.com/siyuan-note/siyuan/issues/12741)
+* [改进数据索引性能](https://github.com/siyuan-note/siyuan/issues/12777)
 
 ### 修复缺陷