diff --git a/Cargo.toml b/Cargo.toml
index 55dd013..99d3292 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,16 +10,16 @@ members = [
 ]
 
 [workspace.package]
-version = "0.23.0"
+version = "0.23.1"
 edition = "2021"
 authors = ["shellrow <shellrow@foctal.com>"]
 
 [workspace.dependencies]
-nex-core = { version = "0.23.0", path = "nex-core" }
-nex-datalink = { version = "0.23.0", path = "nex-datalink" }
-nex-packet = { version = "0.23.0", path = "nex-packet" }
-nex-sys = { version = "0.23.0", path = "nex-sys" }
-nex-socket = { version = "0.23.0", path = "nex-socket" }
+nex-core = { version = "0.23.1", path = "nex-core" }
+nex-datalink = { version = "0.23.1", path = "nex-datalink" }
+nex-packet = { version = "0.23.1", path = "nex-packet" }
+nex-sys = { version = "0.23.1", path = "nex-sys" }
+nex-socket = { version = "0.23.1", path = "nex-socket" }
 serde = { version = "1" }
 libc = "0.2"
 netdev = { version = "0.37" }
diff --git a/README.md b/README.md
index 6793194..852f496 100644
--- a/README.md
+++ b/README.md
@@ -42,14 +42,14 @@ If you want to focus on network interfaces, you can use the [netdev](https://git
 `nex-datalink` uses a raw socket which may require elevated privileges depending on your system's configuration.  
 Execute with administrator privileges if necessary.
 
-## for Windows Users
+## For Windows Users
 Please note that in order to send and receive raw packets using `nex-datalink` on Windows, [Npcap](https://npcap.com/#download) is required.
 
 1. Install Npcap, making sure to check Install Npcap in WinPcap API-compatible Mode during the installation.
 
 2. Download the Npcap SDK. Add the SDK's /Lib/x64 (or /Lib) folder to your LIB environment variable.
 
-## for macOS Users
-On macOS, managing access to the Berkeley Packet Filter (BPF) devices is necessary for send and receive raw packets using `nex-datalink`.
+## For macOS Users
+On macOS, managing access to the Berkeley Packet Filter (BPF) devices is necessary to send and receive raw packets using `nex-datalink`.
 You can use [chmod-bpf](https://github.com/shellrow/chmod-bpf) to automatically manage permissions for BPF devices.
 Alternatively, of course, you can also use `sudo` to temporarily grant the necessary permissions.
diff --git a/nex-core/src/ip.rs b/nex-core/src/ip.rs
index b78c6b7..0aecf41 100644
--- a/nex-core/src/ip.rs
+++ b/nex-core/src/ip.rs
@@ -1,3 +1,5 @@
+//! IP address utilities.
+
 use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
 
 /// Returns [`true`] if the address appears to be globally routable.
diff --git a/nex-datalink/src/async_io/mod.rs b/nex-datalink/src/async_io/mod.rs
index 3d95301..71932a3 100644
--- a/nex-datalink/src/async_io/mod.rs
+++ b/nex-datalink/src/async_io/mod.rs
@@ -1,3 +1,5 @@
+//! Asynchronous data link layer I/O operations.
+
 #[cfg(any(target_os = "linux", target_os = "android"))]
 pub mod linux;
 
diff --git a/nex-packet/src/tcp.rs b/nex-packet/src/tcp.rs
index 86a4e2d..bcb034a 100644
--- a/nex-packet/src/tcp.rs
+++ b/nex-packet/src/tcp.rs
@@ -598,7 +598,9 @@ impl Packet for TcpPacket {
         // Add option padding (zero-filled) to reach the padded length
         let written_opt = bytes.len() - before_opts;
         let pad = padded_opt_len.saturating_sub(written_opt);
-        for _ in 0..pad { bytes.put_u8(0); }
+        for _ in 0..pad {
+            bytes.put_u8(0);
+        }
 
         // Append payload
         bytes.extend_from_slice(&self.payload);
diff --git a/nex-socket/src/icmp/mod.rs b/nex-socket/src/icmp/mod.rs
index 4cc664c..669d04a 100644
--- a/nex-socket/src/icmp/mod.rs
+++ b/nex-socket/src/icmp/mod.rs
@@ -1,3 +1,7 @@
+//! ICMP socket.
+//!
+//! Supplies synchronous and asynchronous interfaces for sending and
+//! receiving Internet Control Message Protocol packets.
 mod async_impl;
 mod config;
 mod sync_impl;
diff --git a/nex-socket/src/tcp/mod.rs b/nex-socket/src/tcp/mod.rs
index 4cc664c..9fdaa95 100644
--- a/nex-socket/src/tcp/mod.rs
+++ b/nex-socket/src/tcp/mod.rs
@@ -1,3 +1,7 @@
+//! TCP socket.
+//!
+//! Includes synchronous and asynchronous functionality and configuration
+//! helpers for TCP sockets.
 mod async_impl;
 mod config;
 mod sync_impl;
diff --git a/nex-socket/src/udp/mod.rs b/nex-socket/src/udp/mod.rs
index 4cc664c..ff56fc6 100644
--- a/nex-socket/src/udp/mod.rs
+++ b/nex-socket/src/udp/mod.rs
@@ -1,3 +1,7 @@
+//! UDP socket.
+//!
+//! Provides synchronous and asynchronous UDP APIs along with
+//! configuration utilities for common socket options.
 mod async_impl;
 mod config;
 mod sync_impl;
diff --git a/nex-sys/src/lib.rs b/nex-sys/src/lib.rs
index 9870937..7b8732f 100644
--- a/nex-sys/src/lib.rs
+++ b/nex-sys/src/lib.rs
@@ -23,6 +23,7 @@ impl Drop for FileDesc {
     }
 }
 
+/// Sends data to a socket, returning the number of bytes sent.
 pub fn send_to(
     socket: CSocket,
     buffer: &[u8],
@@ -47,6 +48,7 @@ pub fn send_to(
     }
 }
 
+/// Receives data from a socket, returning the number of bytes read.
 pub fn recv_from(
     socket: CSocket,
     buffer: &mut [u8],