diff --git a/4.2.8/README.md b/4.2.8/README.md
new file mode 100644
index 0000000..ded7961
--- /dev/null
+++ b/4.2.8/README.md
@@ -0,0 +1,256 @@
+# Usage
+
+- Download [charles.jar](charles.jar), replace the official `charles.jar`.
+- **Or**
+- Hack with the below script by yourself.
+
+# Hack Script
+
+```
+export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
+charles=/Applications/Charles.app/Contents/Java/charles.jar
+dir=charleshack
+
+mkdir $dir
+cd $dir
+cat >> qHTb.java <<EOF
+package com.xk72.charles;
+
+import java.io.UnsupportedEncodingException;
+
+public final class qHTb
+{
+  private static String DdNM = "Thanks for looking at the source. Please register Charles if you use it.";
+  private static qHTb twLa;
+  private boolean gbef = false;
+  private String lPpR = "Thanks for your recommend my friend. But its too expensive :/";
+  private int RgPH;
+  private LicenseType Syrr;
+  private static final int SWQP = 1;
+  private static final int RrJZ = 2;
+  private static final int bOPf = 3;
+  private static final int ABLM = 4;
+  private static final long ZaTZ = 8800536498351690864L;
+  private static final long oxEO = -5408575981733630035L;
+  private static final long liii = -6517524745266237632L;
+  private static final long lGuB = 5911726755176091652L;
+  private static final String[] baum = { "b241993e8a12c782348e4652cc22c2501d9d6f248e91a3d849275666a0ff7d954fdf638f0d03098c52c4710a5e619b9b09cd6cd027ea3bdb937172b3fdf0bded3d684333798880bb78780f6f6644580409ac882bc021732a", "b241993e8a12c782348e4652cc22c250c30afb881b44ba4dd936c44a573755b5276046dc3ae32e58d10f467421f51ca607b0e29f53cd8f38dd9eee548398b195348e4652cc22c2502feb5f8fd884cb3c9a330ee10954d071", "8a24264c4ae5e5371d663158ccbd75e5a5d70bef5d61291ba3af58b92fe98f7a5c8f83abe09b0c1b3f469d5ad85a3a01e81a2248a290b22d05f52db22eb8b10af10437ddcf2f437b1a519b09a9c4f2c374a882757515e2e2fde238a4eccc62d3fc36d9a77dcbd7cc05236b02716005836b21e58a07330bb18136139263e71a0f79382179978b680a", "96122782ec21d0584881fa8dc6b2ff60585bcafbaeec4bd03874fc7ce730dcb3515b9fb963790219047bf20363167e9967cc1b0851ae39b63d831e55c196a04d7ae5be1b671bedc43b7e8ca175e6d3af2610c3f6b5863d0000ccc9ff3b971946974d3cb7be340cb08475020696df69ac20764f7709cb63e3aac239578db58e85" };
+  private static final int atZY = 32;
+  private static int lDRu;
+  private static int hSuV;
+  private static int DgCe;
+  private static int JAWP;
+  private static int Sxdg;
+  private static int XJzk;
+  private static int NlaZ;
+  private static int PINS;
+  private static int ccti;
+  private static int cKaL;
+  private static int qxjU;
+  private static int WVQP;
+  private static int QkfN;
+  private static int zOTO;
+  private static int JVNk;
+  private static int YKez;
+  private static int sIju;
+  private static int VzKH;
+  private static int YJJe;
+  private static int cefm;
+  private static int AqpX;
+  private static int JduR;
+  private static int uylL;
+  private static int MGgu;
+  private static int bQfQ;
+  private static int dIXV = (bQfQ = (MGgu = (uylL = (JduR = (AqpX = (cefm = (YJJe = (VzKH = (sIju = (YKez = (JVNk = (zOTO = (QkfN = (WVQP = (qxjU = (cKaL = (ccti = (PINS = (NlaZ = (XJzk = (Sxdg = (JAWP = (DgCe = (hSuV = (lDRu = -1209970333) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527) + -1640531527;
+  private int fcjx;
+  private int PNpd;
+  private int phMR;
+  private int Xath;
+  private int pmGE;
+  private int xqyj;
+  private int ADKR;
+  private int dqnd;
+  private int htBI;
+  private int okZf;
+  private int eMrq;
+  private int UDoT;
+  private int LaAH;
+  private int JeoO;
+  private int uAel;
+  private int GUrN;
+  private int lYwk;
+  private int Tlpv;
+  private int iQEC;
+  private int DHzF;
+  private int XbrY;
+  private int pWPF;
+  private int DRbT;
+  private int TUtZ;
+  private int WKhq;
+  private int fcSB;
+  private static final int OxHt = -1209970333;
+  private static final int iAQd = -1640531527;
+  
+  public qHTb() {}
+  
+  private qHTb(String paramString1, String paramString2)
+  {
+    this(paramString1, paramString2, 4);
+  }
+  
+  private qHTb(String paramString1, String paramString2, int paramInt)
+  {
+    this.lPpR = "zarar - kvurusan@gmail.com";
+    this.gbef = true;
+  }
+  
+  private static void DdNM(qHTb paramqHTb)
+  {
+    twLa = paramqHTb;
+  }
+  
+  public static boolean DdNM()
+  {
+    qHTb localqHTb;
+    return true;
+  }
+  
+  public static void twLa()
+  {
+    qHTb localqHTb;
+    twLa = localqHTb = new qHTb();
+  }
+  
+  public static String gbef()
+  {
+	qHTb localqHTb = twLa;
+    return "zarar - kvurusan@gmail.com";
+  }
+  
+  public static String DdNM(String paramString1, String paramString2)
+  {
+    return null;
+  }
+  
+  private boolean lPpR()
+  {
+    return this.gbef;
+  }
+  
+  private String RgPH()
+  {
+    return "zarar - kvurusan@gmail.com";
+  }
+  
+  private int Syrr()
+  {
+    return this.RgPH;
+  }
+  
+  private LicenseType SWQP()
+  {
+    return this.Syrr;
+  }
+  
+  private String DdNM(int paramInt)
+  {
+    return "";
+  }
+  
+  private boolean DdNM(String paramString1, String paramString2, int paramInt)
+  {
+    String str = (str = str = paramString1).replaceAll("[�???????]", " ");
+    long l1 = twLa(str, paramString2, paramInt);
+    boolean bool;
+    if ((bool = DdNM(l1))) {
+      return true;
+    }
+    if (str.equals(paramString1)) {
+      return false;
+    }
+    long l2 = twLa(paramString1, paramString2, paramInt);
+    return DdNM(l2);
+  }
+  
+  private static String DdNM(String paramString)
+  {
+    paramString = paramString;
+    return paramString.replaceAll("[�???????]", " ");
+  }
+  
+  private boolean DdNM(long paramLong)
+  {
+    return true;
+  }
+  
+  private long twLa(String paramString1, String paramString2, int paramInt)
+  {
+	Object localObject;
+    this.Syrr = LicenseType.gbef;      
+    return -1L;
+  }
+  
+  private static final long twLa(String paramString)
+  {
+    return Long.parseLong(paramString.substring(2, 10), 16) << 32 | Long.parseLong(paramString.substring(10, 18), 16);
+  }
+  
+  private static final int gbef(String paramString)
+  {
+    return Integer.parseInt(paramString.substring(0, 2), 16);
+  }
+  
+  private static final int DdNM(byte[] paramArrayOfByte)
+  {
+    int i = 0;
+    for (int m : paramArrayOfByte) {
+      i = (i ^= m) << 3 | i >>> 29;
+    }
+    return i;
+  }
+  
+  private static final int twLa(long paramLong)
+  {
+    long l = 0L;
+    for (int i = 56; i >= 0; i -= 8) {
+      l ^= paramLong >>> i & 0xFF;
+    }
+    return Math.abs((int)(l & 0xFF));
+  }
+  
+  private byte[] twLa(byte[] paramArrayOfByte)
+  {
+    return null;
+  }
+  
+  private byte[] gbef(byte[] paramArrayOfByte)
+  {
+    byte[] arrayOfByte = new byte[paramArrayOfByte.length];
+    int i = paramArrayOfByte.length;
+    int j = 0;
+    long l = 0L;
+    for (int k = 0; k < i; k++)
+    {
+      l = l <<= 8 | paramArrayOfByte[k] & 0xFF;
+      j++;
+    }
+    return arrayOfByte;
+  }
+  
+  static {}
+}
+EOF
+javac -encoding UTF-8 qHTb.java -d .&& jar -uvf $charles com/xk72/charles/qHTb.class
+cd .. && rm -rf $dir
+```
+
+# Official Download Link
+
+- [Windows 64 bit](https://www.charlesproxy.com/assets/release/4.2.8/charles-proxy-4.2.8-win64.msi)
+- [Windows 32 bit](https://www.charlesproxy.com/assets/release/4.2.8/charles-proxy-4.2.8-win32.msi)
+- [macOS](https://www.charlesproxy.com/assets/release/4.2.8/charles-proxy-4.2.8.dmg)
+- [Linux 64/32 bit](https://www.charlesproxy.com/assets/release/4.2.8/charles-proxy-4.2.8.tar.gz)
+
+Credit: 
+
+<a href="https://github.com/RKursatV">R. Kürşat Vuruşan
diff --git a/4.2.8/charles.jar b/4.2.8/charles.jar
new file mode 100644
index 0000000..7a76e8e
Binary files /dev/null and b/4.2.8/charles.jar differ