diff --git a/about/authors/translators.de.tm b/about/authors/translators.de.tm
index 0b8918c..7412219 100644
--- a/about/authors/translators.de.tm
+++ b/about/authors/translators.de.tm
@@ -1,6 +1,6 @@
-<TeXmacs|1.0.4.5>
+<TeXmacs|1.99.19>
 
-<style|tmdoc>
+<style|<tuple|tmdoc|english|old-spacing|old-dots|old-lengths>>
 
 <\body>
   <tmdoc-title|Internationalisierung von <TeXmacs>>
@@ -33,6 +33,8 @@
 
     <item*|Russian>Andrey Grozin.
 
+    <item*|Slovak>Peter Rap£an.
+
     <item*|Slovene>Ziga Kranjec.
 
     <item*|Spanish>Álvaro Cantero Tejero, Pablo Ruiz Múzquiz, David Moriano
@@ -43,7 +45,7 @@
     <item*|Ukrainian>Volodymyr Lisivka.
   </description>
 
-  <tmdoc-copyright|1998--2002|Joris van der Hoeven>
+  <tmdoc-copyright|1998\U2002|Joris van der Hoeven>
 
   <tmdoc-license|Permission is granted to copy, distribute and/or modify this
   document under the terms of the GNU Free Documentation License, Version 1.1
@@ -53,8 +55,5 @@
   Documentation License".>
 </body>
 
-<\initial>
-  <\collection>
-    <associate|language|english>
-  </collection>
-</initial>
\ No newline at end of file
+<initial|<\collection>
+</collection>>
\ No newline at end of file
diff --git a/about/changes/change-log.en.tm b/about/changes/change-log.en.tm
index 0117d64..9024963 100644
--- a/about/changes/change-log.en.tm
+++ b/about/changes/change-log.en.tm
@@ -1,13 +1,18 @@
-<TeXmacs|1.99.18>
+<TeXmacs|1.99.19>
 
 <style|<tuple|tmdoc|english|old-spacing|old-dots|old-lengths>>
 
 <\body>
   <tmdoc-title|<TeXmacs> changelog>
 
-  <section|Changes from version 1.99.1 to 1.99.19>
+  <section|Changes from version 1.99.1 to 1.99.20>
 
   <\itemize>
+    <item>Various bug fixes (1.99.20).
+
+    <item>Added Slovak language support with the help of Peter Rap£an
+    (1.99.20).
+
     <item>Many bug fixes (1.99.19).
 
     <item>Improved Octave plugin with tab completion and multi-line input