diff --git a/BibTool-2.60.tar.gz b/BibTool-2.60.tar.gz
deleted file mode 100644
index 8179176..0000000
--- a/BibTool-2.60.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:db84b264df7c069b5b1c8e0778dc70f4e335cd1c39d711dcd65bae02df809ad1
-size 705777
diff --git a/BibTool-2.60.tar.gz.asc b/BibTool-2.60.tar.gz.asc
deleted file mode 100644
index 0e9f381..0000000
--- a/BibTool-2.60.tar.gz.asc
+++ /dev/null
@@ -1,11 +0,0 @@
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diff --git a/BibTool-2.63.tar.gz b/BibTool-2.63.tar.gz
new file mode 100644
index 0000000..dcef487
--- /dev/null
+++ b/BibTool-2.63.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:57d6500abf23374bd9f3adeff9534d1dd3d31b796848a5f1e6414978ca7c2552
+size 715528
diff --git a/BibTool-2.63.tar.gz.asc b/BibTool-2.63.tar.gz.asc
new file mode 100644
index 0000000..769d34e
--- /dev/null
+++ b/BibTool-2.63.tar.gz.asc
@@ -0,0 +1,11 @@
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+Version: GnuPG v1.4.12 (GNU/Linux)
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diff --git a/bibtool-use-system-regex.patch b/bibtool-use-system-regex.patch
index ec812a9..96d673d 100644
--- a/bibtool-use-system-regex.patch
+++ b/bibtool-use-system-regex.patch
@@ -14,7 +14,7 @@ Index: BibTool/AutoConf/makefile.in
  
  # -------------------------------------------------------
  #  Kpathsea Library support.
-@@ -477,8 +477,8 @@ $(OFILES): $(MAKEFILE)
+@@ -476,8 +476,8 @@ $(OFILES): $(MAKEFILE)
  # __________________________________________________________________
  #  Targets from the GNU Regular Expression Library.
  
@@ -25,7 +25,7 @@ Index: BibTool/AutoConf/makefile.in
  
  
  bibtcl:
-@@ -512,7 +512,7 @@ Test:
+@@ -511,7 +511,7 @@ Test:
  	(cd test; $(MAKE))
  
  libbib.a: $(OLIBFILES)
diff --git a/bibtool.changes b/bibtool.changes
index ac2d3eb..3586824 100644
--- a/bibtool.changes
+++ b/bibtool.changes
@@ -1,3 +1,21 @@
+-------------------------------------------------------------------
+Sun Feb  7 13:56:50 UTC 2016 - mpluskal@suse.com
+
+- Update to 2.36
+  * Combined rewrite and delete bug fixed.
+  * Minor improvements for the distribution.
+  * README renamed to README.md to comply with the conventions of 
+    the GitHub repository.
+
+-------------------------------------------------------------------
+Thu Nov 26 13:05:39 UTC 2015 - mpluskal@suse.com
+
+- Update to 2.61
+  * New resource rename.field introduced to conditionally rename a 
+    field.
+  * Duplicate file doc/bibtool.tex in the distribution tar ball 
+    eliminated.
+
 -------------------------------------------------------------------
 Wed Jul 15 09:34:46 UTC 2015 - cfarrell@suse.com
 
diff --git a/bibtool.spec b/bibtool.spec
index 49c280f..5613863 100644
--- a/bibtool.spec
+++ b/bibtool.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package bibtool
 #
-# Copyright (c) 2015 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
 # Copyright (c) 2011 Guido Berhoerster.
 #
 # All modifications and additions to the file contributed by third parties
@@ -18,7 +18,7 @@
 
 
 Name:           bibtool
-Version:        2.60
+Version:        2.63
 Release:        0
 Summary:        Tool for Manipulating BibTeX Databases
 License:        GPL-1.0+ and CC-BY-SA-3.0
@@ -33,6 +33,7 @@ BuildRequires:  texlive-amsfonts
 BuildRequires:  texlive-bibtex
 BuildRequires:  texlive-devel
 BuildRequires:  texlive-latex
+BuildRequires:  texlive-lm
 BuildRequires:  texlive-makeindex
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
@@ -56,10 +57,10 @@ This package contains the documentation for bibtool.
 
 %build
 %configure
-make %{?_smp_mflags}
-ln -s makefile Makefile
-make %{?_smp_mflags} doc
-pdflatex Changes.tex
+make %{?_smp_mflags} all doc
+# avoid failure due to warning: LaTeX Font Warning: Some font shapes were
+# not available, defaults substituted.
+pdflatex -interaction=nonstopmode Changes.tex ||:
 mkdir examples
 sed 's|#!%{_prefix}/local/bin/tclsh|#!%{_bindir}/tclsh|' Tcl/bibtool.tcl \
     >examples/bibtool.tcl
@@ -67,18 +68,17 @@ sed 's|#!%{_prefix}/local/bin/perl|#!%{_bindir}/perl|' Perl/bibtool.pl \
     >examples/bibtool.pl
 
 %install
-make INSTALLPREFIX=%{buildroot} install
-make INSTALLPREFIX=%{buildroot} install-man
+make INSTALLPREFIX=%{buildroot} install install-man
 
 %files
 %defattr(-,root,root,-)
-%doc COPYING README
-%attr(0644,root,root) %{_mandir}/man1/bibtool.1*
+%doc COPYING README.md
+%attr(0644,root,root) %{_mandir}/man1/bibtool.1%{ext_man}
 %{_bindir}/bibtool
 %{_libdir}/BibTool
 
 %files doc
 %defattr(-,root,root,-)
-%doc COPYING doc/bibtool.pdf doc/ref_card.pdf doc/c_lib.pdf Changes.pdf examples/
+%doc COPYING doc/bibtool.pdf doc/ref_card.pdf doc/c_lib.pdf Changes.pdf examples
 
 %changelog