diff --git a/.github/workflows/deploy-manually.yml b/.github/workflows/deploy-manually.yml
index 3ac6f2b..c6489f5 100644
--- a/.github/workflows/deploy-manually.yml
+++ b/.github/workflows/deploy-manually.yml
@@ -18,7 +18,7 @@ on:
         required: true
       version:
         description: 'Asset version to deploy'
-        default: 'v1.0.0-alpha.3'
+        default: 'v1.0.0-alpha.4'
         required: true
       arch:
         description: 'Asset binary architecture (Rust format)'
diff --git a/Cargo.lock b/Cargo.lock
index 4691fa0..0f0f6a2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -292,7 +292,7 @@ checksum = "5988cb1d626264ac94100be357308f29ff7cbdd3b36bda27f450a4ee3f713426"
 
 [[package]]
 name = "bp"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 dependencies = [
  "bp-cli",
  "bp-core",
@@ -303,7 +303,7 @@ dependencies = [
 
 [[package]]
 name = "bp-cli"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 dependencies = [
  "anyhow",
  "bp-core",
@@ -321,7 +321,7 @@ dependencies = [
 
 [[package]]
 name = "bp-core"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -350,7 +350,7 @@ dependencies = [
 
 [[package]]
 name = "bp-monitor"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 dependencies = [
  "bp-core",
  "bytes",
@@ -360,7 +360,7 @@ dependencies = [
 
 [[package]]
 name = "bp-test"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 dependencies = [
  "bp-core",
  "bytes",
diff --git a/Cargo.toml b/Cargo.toml
index 33ab6e9..5faa089 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bp"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 authors = ["Micooz Lee <micooz@hotmail.com>"]
 description = "bp is a lightweight and efficient proxy written in pure Rust."
 repository = "https://github.com/micooz/bp"
diff --git a/README.md b/README.md
index 4c2bc88..87dcce0 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 [![Build & Release](https://github.com/micooz/bp/actions/workflows/build-release.yml/badge.svg)](https://github.com/micooz/bp/actions/workflows/build-release.yml)
-[![Build & Test](https://github.com/micooz/bp/actions/workflows/build-test.yml/badge.svg)](https://github.com/micooz/bp/actions/workflows/build-test.yml)
+[![Build & Test (Self Hosted)](https://github.com/micooz/bp/actions/workflows/build-test-self-hosted.yml/badge.svg)](https://github.com/micooz/bp/actions/workflows/build-test-self-hosted.yml)
 
 # bp
 
diff --git a/USAGE.txt b/USAGE.txt
index 8de97ec..2505ca5 100644
--- a/USAGE.txt
+++ b/USAGE.txt
@@ -1,4 +1,4 @@
-bp 1.0.0-alpha.3
+bp 1.0.0-alpha.4
 
 Lightweight and efficient proxy written in pure Rust
 
diff --git a/bp-cli/Cargo.toml b/bp-cli/Cargo.toml
index e0c053d..2164c96 100644
--- a/bp-cli/Cargo.toml
+++ b/bp-cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bp-cli"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 edition = "2021"
 
 [dependencies]
diff --git a/bp-core/Cargo.toml b/bp-core/Cargo.toml
index 23d505c..1afa04f 100644
--- a/bp-core/Cargo.toml
+++ b/bp-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bp-core"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 edition = "2021"
 
 [features]
diff --git a/bp-core/src/config.rs b/bp-core/src/config.rs
index fa0aedd..455cdee 100644
--- a/bp-core/src/config.rs
+++ b/bp-core/src/config.rs
@@ -18,7 +18,7 @@ pub const TCP_CONNECT_TIMEOUT_SECONDS: u64 = 10;
 /// The read or write timeout for each connection
 pub const READ_WRITE_TIMEOUT_SECONDS: u64 = 60;
 
-// TODO: reduce buffer memory usage
+/// Receive buffer size for each connection
 pub const RECV_BUFFER_SIZE: usize = 1024 * 1024; // 1MB
 
 /// The max transmission unit for udp packet
diff --git a/bp-monitor/Cargo.toml b/bp-monitor/Cargo.toml
index 13dfdd4..a4c03ad 100644
--- a/bp-monitor/Cargo.toml
+++ b/bp-monitor/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bp-monitor"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 edition = "2021"
 
 [dependencies]
diff --git a/bp-test/Cargo.toml b/bp-test/Cargo.toml
index 7d926cf..d3022fc 100644
--- a/bp-test/Cargo.toml
+++ b/bp-test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bp-test"
-version = "1.0.0-alpha.3"
+version = "1.0.0-alpha.4"
 authors = ["Micooz Lee <micooz@hotmail.com>"]
 description = "bp is a lightweight and efficient proxy written in pure Rust."
 repository = "https://github.com/micooz/bp"