diff --git a/README.md b/README.md
index 7358f42..27c17de 100644
--- a/README.md
+++ b/README.md
@@ -19,4 +19,7 @@ AcoSail uboot
  - headers与UEFI版本统一
 
 ### v1.0-RC-1
- - kernel与initramfs 支持 nfs启动
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+ - kernel与initramfs 支持 nfs启动
+
+### v1.0-RC-2
+ - 放开devmem访问限制
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