diff --git a/.jazzy.yaml b/.jazzy.yaml
index 2b1d81c0..2a57f2b1 100644
--- a/.jazzy.yaml
+++ b/.jazzy.yaml
@@ -3,11 +3,11 @@ sourcekitten_sourcefile: docs.json
 clean: true
 author: Timofey Solomko
 module: SWCompression
-module_version: 4.5.8
+module_version: 4.5.9
 copyright: '© 2021 Timofey Solomko'
 readme: README.md
 github_url: https://github.com/tsolomko/SWCompression
-github_file_prefix: https://github.com/tsolomko/SWCompression/tree/4.5.8
+github_file_prefix: https://github.com/tsolomko/SWCompression/tree/4.5.9
 theme: fullwidth
 
 custom_categories:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4767c8b..989429ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 4.5.9
+
+- Improved performance of LZMA/LZMA2 and, consequently, of XZ.
+- Fixed a rare crash when processing a BZip2 archive which uses non-standard (but allowed) run length values.
+
 ## 4.5.8
 
 - Fixed incompatibility with Carthage `--use-xcframeworks` method of installation.
diff --git a/SWCompression.podspec b/SWCompression.podspec
index ac193438..719ef789 100644
--- a/SWCompression.podspec
+++ b/SWCompression.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "SWCompression"
-  s.version      = "4.5.8"
+  s.version      = "4.5.9"
   s.summary      = "A framework with functions for working with compression, archives and containers."
   
   s.description  = "A framework with (de)compression algorithms and functions for processing various archives and containers."
diff --git a/SWCompression.xcodeproj/SWCompression.plist b/SWCompression.xcodeproj/SWCompression.plist
index 162ceca6..ccfd150a 100644
--- a/SWCompression.xcodeproj/SWCompression.plist
+++ b/SWCompression.xcodeproj/SWCompression.plist
@@ -15,9 +15,9 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>4.5.8</string>
+	<string>4.5.9</string>
 	<key>CFBundleVersion</key>
-	<string>75</string>
+	<string>76</string>
 	<key>NSHumanReadableCopyright</key>
 	<string>Copyright © 2021 Timofey Solomko</string>
 </dict>
diff --git a/SWCompression.xcodeproj/TestSWCompression.plist b/SWCompression.xcodeproj/TestSWCompression.plist
index 00e0c5d4..fbfd44a0 100644
--- a/SWCompression.xcodeproj/TestSWCompression.plist
+++ b/SWCompression.xcodeproj/TestSWCompression.plist
@@ -15,8 +15,8 @@
 	<key>CFBundlePackageType</key>
 	<string>BNDL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>4.5.8</string>
+	<string>4.5.9</string>
 	<key>CFBundleVersion</key>
-	<string>75</string>
+	<string>76</string>
 </dict>
 </plist>
diff --git a/SWCompression.xcodeproj/project.pbxproj b/SWCompression.xcodeproj/project.pbxproj
index 62e0d263..e445fdd4 100644
--- a/SWCompression.xcodeproj/project.pbxproj
+++ b/SWCompression.xcodeproj/project.pbxproj
@@ -1258,7 +1258,7 @@
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CURRENT_PROJECT_VERSION = 75;
+				CURRENT_PROJECT_VERSION = 76;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -1339,7 +1339,7 @@
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CURRENT_PROJECT_VERSION = 75;
+				CURRENT_PROJECT_VERSION = 76;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				"FRAMEWORK_SEARCH_PATHS[sdk=appletvos*]" = (
@@ -1400,7 +1400,7 @@
 				APPLICATION_EXTENSION_API_ONLY = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 75;
+				DYLIB_CURRENT_VERSION = 76;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = SWCompression.xcodeproj/SWCompression.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
@@ -1427,7 +1427,7 @@
 				APPLICATION_EXTENSION_API_ONLY = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 75;
+				DYLIB_CURRENT_VERSION = 76;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = SWCompression.xcodeproj/SWCompression.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
diff --git a/Sources/swcomp/main.swift b/Sources/swcomp/main.swift
index 5b4e3383..3cf41ef9 100644
--- a/Sources/swcomp/main.swift
+++ b/Sources/swcomp/main.swift
@@ -7,7 +7,7 @@ import Foundation
 import SWCompression
 import SwiftCLI
 
-let cli = CLI(name: "swcomp", version: "4.5.8",
+let cli = CLI(name: "swcomp", version: "4.5.9",
               description: """
                            swcomp - small command-line client for SWCompression framework.
                            Serves as an example of SWCompression usage.