diff --git a/libb64-1.2-bufsiz-as-buffer-size.patch b/libb64-1.2-bufsiz-as-buffer-size.patch
deleted file mode 100644
index a6eb14c..0000000
--- a/libb64-1.2-bufsiz-as-buffer-size.patch
+++ /dev/null
@@ -1,44 +0,0 @@
-Description: use BUFSIZ as buffer size
-Author: Jakub Wilk <jwilk@debian.org>
-Bug: http://sourceforge.net/tracker/?func=detail&atid=785907&aid=3591336&group_id=152942
-Forwarded: no
-Last-Update: 2012-11-30
-
---- a/include/b64/decode.h
-+++ b/include/b64/decode.h
-@@ -8,6 +8,7 @@
- #ifndef BASE64_DECODE_H
- #define BASE64_DECODE_H
- 
-+#include <cstdio>
- #include <iostream>
- 
- namespace base64
-@@ -22,7 +23,7 @@
- 		base64_decodestate _state;
- 		int _buffersize;
- 
--		decoder(int buffersize_in = BUFFERSIZE)
-+		decoder(int buffersize_in = BUFSIZ)
- 		: _buffersize(buffersize_in)
- 		{}
- 
---- a/include/b64/encode.h
-+++ b/include/b64/encode.h
-@@ -8,6 +8,7 @@
- #ifndef BASE64_ENCODE_H
- #define BASE64_ENCODE_H
- 
-+#include <cstdio>
- #include <iostream>
- 
- namespace base64
-@@ -22,7 +23,7 @@
- 		base64_encodestate _state;
- 		int _buffersize;
- 
--		encoder(int buffersize_in = BUFFERSIZE)
-+		encoder(int buffersize_in = BUFSIZ)
- 		: _buffersize(buffersize_in)
- 		{}
- 
diff --git a/libb64.spec b/libb64.spec
index cf54c2b..79a7adb 100644
--- a/libb64.spec
+++ b/libb64.spec
@@ -1,5 +1,5 @@
 Name:          libb64
-Version:       1.2
+Version:       2.0.0.1
 Release:       1mamba
 Summary:       A library of ANSI C routines for fast encoding/decoding data into and from a base64-encoded format
 Group:         System/Libraries
@@ -7,8 +7,7 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://libb64.sourceforge.net/
-Source:        https://sourceforge.net/projects/libb64/files/libb64/libb64/libb64-%{version}.src.zip
-Patch0:        libb64-1.2-bufsiz-as-buffer-size.patch
+Source:        https://github.com/libb64/libb64.git/v%{version}/libb64-%{version}.tar.bz2
 License:       Public Domain
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -29,7 +28,6 @@ This package contains libraries and header files for developing applications tha
 
 %prep
 %setup -q
-%patch 0 -p1 -b .bufsiz-as-buffer-size
 
 %build
 cd src
@@ -49,21 +47,21 @@ cp -r include %{buildroot}%{_prefix}
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%post -p /sbin/ldconfig
-%postun -p /sbin/ldconfig
-
 %files
 %defattr(-,root,root)
 %{_libdir}/libb64.so.*
-%doc AUTHORS LICENSE
+%doc AUTHORS.md LICENSE.md
 
 %files devel
 %defattr(-,root,root)
 %dir %{_includedir}/b64
 %{_includedir}/b64/*
 %{_libdir}/libb64.so
-%doc README
+%doc README.md
 
 %changelog
+* Wed Dec 04 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 2.0.0.1-1mamba
+- update to 2.0.0.1
+
 * Sun Aug 04 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 1.2-1mamba
 - package created using the webbuild interface