diff --git a/.gitignore b/.gitignore
index ecf66f84..8d215c86 100755
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,9 @@ inc/
 /MANIFEST.bak
 /pm_to_blib
 /*.zip
+
+# PDF files
+/sidef-number-class-documentation.pdf
+/sidef-number-theory.pdf
+/sidef-tutorial.pdf
+/sidef-book.pdf
diff --git a/MANIFEST.SKIP b/MANIFEST.SKIP
index 5905a537..21714283 100644
--- a/MANIFEST.SKIP
+++ b/MANIFEST.SKIP
@@ -81,3 +81,9 @@
 
 # Avoid archives of this distribution
 \bSidef-[\d\.\_]+
+
+# Avoid PDF files
+^sidef-tutorial.pdf$
+^sidef-number-theory.pdf$
+^sidef-number-class-documentation.pdf$
+^sidef-book.pdf$
diff --git a/NUMBER_THEORY_TUTORIAL.md b/NUMBER_THEORY_TUTORIAL.md
index 0833dceb..8555444f 100644
--- a/NUMBER_THEORY_TUTORIAL.md
+++ b/NUMBER_THEORY_TUTORIAL.md
@@ -14,7 +14,7 @@ In this tutorial we're going to look how we can use [Sidef](https://github.com/t
       **   **               ****   *********   *********   *
 ```
 
-To initiate your journey with Sidef and installation instructions, refer to the [beginner's tutorial](https://codeberg.org/trizen/sidef/src/branch/master/TUTORIAL.md) ([PDF](https://github.com/trizen/sidef/releases/download/24.01/sidef-tutorial.pdf)).
+To initiate your journey with Sidef and installation instructions, refer to the [beginner's tutorial](https://codeberg.org/trizen/sidef/src/branch/master/TUTORIAL.md) ([PDF](https://github.com/trizen/sidef/releases/download/24.05/sidef-tutorial.pdf)).
 
 Over time, Sidef has integrated numerous mathematical functions, many sourced from Dana Jacobsen's commendable [Math::Prime::Util](https://github.com/danaj/Math-Prime-Util) and [Math::Prime::Util::GMP](https://github.com/danaj/Math-Prime-Util-GMP) Perl modules. These modules significantly enhance performance in tasks like integer factorization, primality testing, and prime counting.
 
@@ -30,7 +30,7 @@ After [installing Sidef](https://codeberg.org/trizen/sidef/src/branch/master/TUT
 
 ```
 $ sidef
-Sidef 24.01, running on Linux, using Perl v5.38.1.
+Sidef 24.05, running on Linux, using Perl v5.38.2.
 Type "help", "copyright" or "license" for more information.
 >
 ```
@@ -254,7 +254,7 @@ k.powerfree_divisors(n)     # k-powerfree divisors of n
 k.powerfree_udivisors(n)    # k-powerfree unitary divisors of n
 ```
 
-For the full documentation of each function, please see: [https://metacpan.org/pod/Sidef::Types::Number::Number](https://metacpan.org/pod/Sidef::Types::Number::Number) ([PDF](https://github.com/trizen/sidef/releases/download/24.01/sidef-number-class-documentation.pdf))
+For the full documentation of each function, please see: [https://metacpan.org/pod/Sidef::Types::Number::Number](https://metacpan.org/pod/Sidef::Types::Number::Number) ([PDF](https://github.com/trizen/sidef/releases/download/24.05/sidef-number-class-documentation.pdf))
 
 # Generating sequences
 
@@ -362,7 +362,7 @@ for n in (0..30) {
 
 This section briefly describes the built-in classes related to computational number theory.
 
-For the documentation of other built-in classes, please see: [https://trizen.gitbook.io/sidef-lang/](https://trizen.gitbook.io/sidef-lang/) ([PDF](https://github.com/trizen/sidef/releases/download/24.01/sidef-book.pdf)).
+For the documentation of other built-in classes, please see: [https://trizen.gitbook.io/sidef-lang/](https://trizen.gitbook.io/sidef-lang/) ([PDF](https://github.com/trizen/sidef/releases/download/24.05/sidef-book.pdf)).
 
 ## Mod class
 
diff --git a/README.md b/README.md
index eb74176f..943627cf 100644
--- a/README.md
+++ b/README.md
@@ -31,10 +31,10 @@ Sidef is a modern, high-level programming language designed for versatile genera
 
 ### Resources
 
-- [Beginner's Tutorial](https://codeberg.org/trizen/sidef/src/branch/master/TUTORIAL.md) ([PDF](https://github.com/trizen/sidef/releases/download/24.01/sidef-tutorial.pdf))
-- [Number Theory Tutorial](https://codeberg.org/trizen/sidef/src/branch/master/NUMBER_THEORY_TUTORIAL.md) ([PDF](https://github.com/trizen/sidef/releases/download/24.01/sidef-number-theory.pdf))
+- [Beginner's Tutorial](https://codeberg.org/trizen/sidef/src/branch/master/TUTORIAL.md) ([PDF](https://github.com/trizen/sidef/releases/download/24.05/sidef-tutorial.pdf))
+- [Number Theory Tutorial](https://codeberg.org/trizen/sidef/src/branch/master/NUMBER_THEORY_TUTORIAL.md) ([PDF](https://github.com/trizen/sidef/releases/download/24.05/sidef-number-theory.pdf))
 - RosettaCode: [Sidef](https://rosettacode.org/wiki/Sidef)
-- Gitbook: [Sidef-lang](https://trizen.gitbook.io/sidef-lang/) ([legacy](https://trizen.gitbooks.io/sidef-lang)) ([PDF](https://github.com/trizen/sidef/releases/download/24.01/sidef-book.pdf))
+- Gitbook: [Sidef-lang](https://trizen.gitbook.io/sidef-lang/) ([legacy](https://trizen.gitbooks.io/sidef-lang)) ([PDF](https://github.com/trizen/sidef/releases/download/24.05/sidef-book.pdf))
 
 ### Questions & Answers
 
diff --git a/TUTORIAL.md b/TUTORIAL.md
index c3bb6e34..82eacaeb 100644
--- a/TUTORIAL.md
+++ b/TUTORIAL.md
@@ -16,7 +16,7 @@ Sidef is a modern, high-level programming language designed for versatile genera
 
 # Book
 
-The Sidef Programming Language: [https://trizen.gitbook.io/sidef-lang/](https://trizen.gitbook.io/sidef-lang/) ([legacy](https://trizen.gitbooks.io/sidef-lang)) ([PDF](https://github.com/trizen/sidef/releases/download/24.01/sidef-book.pdf)).
+The Sidef Programming Language: [https://trizen.gitbook.io/sidef-lang/](https://trizen.gitbook.io/sidef-lang/) ([legacy](https://trizen.gitbooks.io/sidef-lang)) ([PDF](https://github.com/trizen/sidef/releases/download/24.05/sidef-book.pdf)).
 
 # Installation
 
@@ -32,7 +32,7 @@ Access the latest release at:
 
 For Windows, Sidef is available as a portable 32-bit executable:
 
-* https://github.com/trizen/sidef/releases/download/24.01/sidef-24.01.exe.zip
+* https://github.com/trizen/sidef/releases/download/24.05/sidef-24.05.exe.zip
 
 ## Linux installation
 
diff --git a/bin/sidef b/bin/sidef
index 507714f0..8873aa86 100755
--- a/bin/sidef
+++ b/bin/sidef
@@ -1050,7 +1050,7 @@ Outputs:
 The interactive mode (a.k.a. REPL) is available by simply executing the C<sidef> command, or by specifying the C<-i> command-line switch:
 
     $ sidef -i
-    Sidef 24.01, running on Linux, using Perl v5.38.1.
+    Sidef 24.05, running on Linux, using Perl v5.38.2.
     Type "help", "copyright" or "license" for more information.
     > n = 41
     #1 = 41
diff --git a/lib/Sidef.pm b/lib/Sidef.pm
index 0d244192..2fa37d16 100644
--- a/lib/Sidef.pm
+++ b/lib/Sidef.pm
@@ -3,7 +3,7 @@ package Sidef {
     use utf8;
     use 5.016;
 
-    our $VERSION = '24.01';
+    our $VERSION = '24.05';
 
     our $SPACES      = 0;    # the current number of indentation spaces
     our $SPACES_INCR = 4;    # the number of indentation spaces