Add 3.6.12.278 changelog (#206)

Author: Glavo

_changelog/dev.md

@@ -10,7 +10,22 @@ toc: true
 
 *Notice: changelogs are written in Chinese.*
 
-<h1 id="nowchange">HMCL 3.6.12.276</h1>
+<h1 id="nowchange">HMCL 3.6.12.278</h1>
+
+细版本介绍：[cv41495241](https://www.bilibili.com/opus/1060912529106010120)
+
+- GP-3840: 将 HMCLauncher 拆分至独立项目 (by Glavo)
+- GP-3857: 将 Gradle 更新至 8.14 (by Glavo)
+- GP-3854: 右键主页“启动游戏”按钮时展开版本列表菜单 (by Glavo)
+- GP-3853: 优化离线账户名称中包含非 ASCII 字符时的提示 (by Glavo)
+- 优化软件文案，修订翻译（by 3gf8jv4dv）
+
+错误修复：
+
+- GP-3856: 修复导出过长日志时可能发生 OutOfMemoryError 的问题 (by Glavo)
+- GP-3863: 修复游戏崩溃分析窗口乱码的问题 (by Glavo)
+
+# HMCL 3.6.12.276
 
 详细版本介绍：[cv41401127](https://www.bilibili.com/opus/1057821527000481797)