diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ad0f46..a83a34e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # 更新日志
 
+4.2.2-rc.0 - 2025-07-25
+---
+- PRE-RELEASE: v4.2.2-rc.0是v4.2.2预发布版本,请勿在生产环境中使用;
+- CHANGE: 重构OCI镜像代理部分, 完善对`ghcr`,`gcr`,`k8s.gcr`等上游源特殊处理的适配
+
 4.2.1 - 2025-07-25
 ---
 - CHANGE: 更新主题样式, 新增`free`主题, `design`与`hub`主题样式更新
diff --git a/DEV-VERSION b/DEV-VERSION
index 5cff3f3..c6cdc65 100644
--- a/DEV-VERSION
+++ b/DEV-VERSION
@@ -1 +1 @@
-4.2.0-rc.0
\ No newline at end of file
+4.2.2-rc.0
\ No newline at end of file
diff --git a/go.mod b/go.mod
index 6a9d201..2e73766 100644
--- a/go.mod
+++ b/go.mod
@@ -10,6 +10,7 @@ require (
 )
 
 require (
+	github.com/WJQSERVER-STUDIO/go-utils/iox v0.0.2
 	github.com/WJQSERVER-STUDIO/go-utils/limitreader v0.0.2
 	github.com/fenthope/bauth v0.0.1
 	github.com/fenthope/ikumi v0.0.2
@@ -24,6 +25,5 @@ require (
 
 require (
 	github.com/WJQSERVER-STUDIO/go-utils/copyb v0.0.6 // indirect
-	github.com/WJQSERVER-STUDIO/go-utils/iox v0.0.2 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 )