diff --git a/Cargo.toml b/Cargo.toml
index 7987aea..f2b69e3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "memsec"
-version = "0.6.3"
+version = "0.7.0"
 authors = ["quininer kel <quininer@live.com>"]
 description = "Rust implementation `libsodium/utils`."
 repository = "https://github.com/quininer/memsec"
diff --git a/README.md b/README.md
index 9ea0554..256ef5f 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ Rust implementation `libsodium/utils`.
 * [x] `memset`/`memzero`
 * [x] `mlock`/`munlock`
 * [x] `alloc`/`free`/`mprotect`
+* [x] Linux only: `alloc_memfd_secret`/`free_memfd_secret` functions similar to `alloc`/`free` implementation backed by `memfd_secret`  
 
 ref
 ---
@@ -19,3 +20,4 @@ ref
 * [rlibc](https://github.com/alexcrichton/rlibc)
 * [aligned\_alloc.rs](https://github.com/jonas-schievink/aligned_alloc.rs)
 * [cst\_time\_memcmp](https://github.com/chmike/cst_time_memcmp)
+* [memfd_secret] (https://man.archlinux.org/man/memfd_secret.2.en)