diff --git a/Doc/lib/libcodecs.tex b/Doc/lib/libcodecs.tex
index 1806ef0..ac61743 100644
--- a/Doc/lib/libcodecs.tex
+++ b/Doc/lib/libcodecs.tex
@@ -112,6 +112,7 @@
 
 Raises a \exception{LookupError} in case the encoding cannot be found or the
 codec doesn't support an incremental encoder.
+\versionadded{2.5}
 \end{funcdesc}
 
 \begin{funcdesc}{getincrementaldecoder}{encoding}
@@ -120,6 +121,7 @@
 
 Raises a \exception{LookupError} in case the encoding cannot be found or the
 codec doesn't support an incremental decoder.
+\versionadded{2.5}
 \end{funcdesc}
 
 \begin{funcdesc}{getreader}{encoding}
@@ -229,12 +231,14 @@
 Uses an incremental encoder to iteratively encode the input provided by
 \var{iterable}. This function is a generator. \var{errors} (as well as
 any other keyword argument) is passed through to the incremental encoder.
+\versionadded{2.5}
 \end{funcdesc}
 
 \begin{funcdesc}{iterdecode}{iterable, encoding\optional{, errors}}
 Uses an incremental decoder to iteratively decode the input provided by
 \var{iterable}. This function is a generator. \var{errors} (as well as
 any other keyword argument) is passed through to the incremental encoder.
+\versionadded{2.5}
 \end{funcdesc}
 
 The module also provides the following constants which are useful
@@ -355,6 +359,8 @@
 
 \subsubsection{IncrementalEncoder Objects \label{incremental-encoder-objects}}
 
+\versionadded{2.5}
+
 The \class{IncrementalEncoder} class is used for encoding an input in multiple
 steps. It defines the following methods which every incremental encoder must
 define in order to be compatible to the Python codec registry.