diff --git a/README.md b/README.md
index c1a0d08..c5a9238 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Xvirus SDK C#
 
-Xvirus SDK 4.2.1 C# bindings.
+Xvirus SDK 4.2.2 C# bindings.
 
 ## Table of Contents
 
@@ -41,9 +41,15 @@ The following Operating Systems are supported:
 
 ## Changelog
 
+- Version **4.2.2**:
+  - Optimized scanning speed of PDF files
+  - ScanResult now returns the file path
+  - Added new ScanFolder() and ScanFolderString() functions
+
 - Version **4.2.1**:
   - Optimized scanning speed of big files
   - Optimized scanning speed in Linux version
+  
 - Version **4.2**:
   - Reduced glibc minimum version to 2.17 on Linux
   - Added "Logging()" function to enable/disable logging
@@ -85,7 +91,7 @@ You have the following functions available:
 - **Load** - Loads Xvirus Scan Engine into memory, if set `force`=true it will reload the scan engine, even if it is already loaded.
 - **Unload** - Unloads Xvirus Scan Engine from memory.
 - **Scan** - Scans the file located at `filepath`. It will return a [`ScanResult`](#Model).
-- **ScanAsString** - Scans the file located at `filepath`. It will return one of the following strings:
+- **ScanString** - Scans the file located at `filepath`. It will return one of the following strings:
   - "**Safe**" - If no malware is detected.
   - "**Malware**" - If malware is detected but the name isn't known.
   - **_Malware Name_** - If it is malware from a known family (example: "Trojan.Downloader").
@@ -93,6 +99,8 @@ You have the following functions available:
   - "**File not found!**" - If no file is found in the submited path.
   - "**File too big!**" - If the file size is bigger than the set limit.
   - "**Could not get file hash!**" - There was an error calculating the hash of the file.
+- **ScanFolder** - Scans all the files inside the folder at `folderpath`. It will return an IEnumerable of [`ScanResult`](#Model).
+- **ScanFolderString** - Scans all the files inside the folder at `folderpath`. It will return the scan result message for each file scanned.
 - **CheckUpdates** - Checks and updates the databases and AI engine to the most recent versions. If `checkSDKUpdates`=true then it will also check for SDK updates. If `loadDBAfterUpdate`=true then it will reload the Xvirus Scan Engine after the update is done. It can return the following strings:
   - "**There is a new SDK version available!**"
   - "**Database was updated!**"
@@ -105,7 +113,7 @@ You have the following functions available:
 
 ## Model
 
-The `scan` function returns a class `ScanResult` with the following properties:
+The `scan` and `scanFolder` functions returns a class `ScanResult` with the following properties:
 
 ```c#
 public class ScanResult
@@ -113,6 +121,7 @@ public class ScanResult
     public bool IsMalware { get; set; } // true if malware
     public string Name { get; set; } // detection name
     public double MalwareScore { get; set; } // between 0 and 1, higher score means more likely to be malware, -1 if there was an error
+    public string Path { get; set; } // file path
 }
 ```
 
diff --git a/bin/BaseLibrary.dll b/bin/BaseLibrary.dll
index 4d2a04d..f2998ef 100644
Binary files a/bin/BaseLibrary.dll and b/bin/BaseLibrary.dll differ
diff --git a/bin/XvirusSDK.deps.json b/bin/XvirusSDK.deps.json
index 3492f17..50461b4 100644
--- a/bin/XvirusSDK.deps.json
+++ b/bin/XvirusSDK.deps.json
@@ -6,7 +6,7 @@
   "compilationOptions": {},
   "targets": {
     ".NETCoreApp,Version=v7.0": {
-      "XvirusSDK/4.2.1.0": {
+      "XvirusSDK/4.2.2.0": {
         "dependencies": {
           "BaseLibrary": "1.0.0"
         },
@@ -1050,7 +1050,7 @@
     }
   },
   "libraries": {
-    "XvirusSDK/4.2.1.0": {
+    "XvirusSDK/4.2.2.0": {
       "type": "project",
       "serviceable": false,
       "sha512": ""
diff --git a/bin/XvirusSDK.dll b/bin/XvirusSDK.dll
index a8ce74f..2202d95 100644
Binary files a/bin/XvirusSDK.dll and b/bin/XvirusSDK.dll differ