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+++ b/doc/release_notes.tex
@@ -68,7 +68,7 @@
 framexleftmargin=1pt,
 frame=l}
 \renewcommand{\lstlistingname}{Listing}
-\title{PsPM Release Notes\\ ~\\ Version 6.1.0}
+\title{PsPM Release Notes\\ ~\\ Version 6.1.1}
 
 \begin{document}
 \maketitle
@@ -1096,6 +1096,123 @@ \subsection*{Reference document}
     	\item New document \textit{PsPM Reference} for checking the default values and restrictions of \texttt{options} fields.
     \end{itemize}
 
+\section{PsPM Version 6.1.1}
+
+\subsection*{New features}
+\begin{itemize}
+\item \texttt{pspm\_bf\_psrf\_2\_fc}
+\begin{itemize}
+\item \texttt{pspm\_bf\_psrf\_2\_fc} now allows to set the time delay between
+CS and US.
+\item Previously, \texttt{pspm\_bf\_psrf\_2\_fc} used to set a basis function
+for the CS and for the US response with a time delay of 3.5 s as standard.
+\end{itemize}
+\item \texttt{pspm\_dcm}
+\begin{itemize}
+\item Missing data epochs from file and data can be combined.
+\end{itemize}
+\item \texttt{pspm\_glm}
+\begin{itemize}
+\item \texttt{pspm\_glm} now allows a two-element vector and construct the
+dictionary accordingly.
+\item Previously \texttt{pspm\_glm} only allows scalar values in model.window.
+\end{itemize}
+\end{itemize}
+
+\subsection*{New functions}
+\begin{itemize}
+\item \texttt{pspm\_check\_model}
+\begin{itemize}
+\item \texttt{pspm\_check\_model} checks the fiels of models.
+\end{itemize}
+\item \texttt{pspm\_combine\_markerchannels}
+\begin{itemize}
+\item \texttt{pspm\_combine\_markerchannels} allows users to use the GLM
+option \textquotedbl markervalues\textquotedbl{} to create onsets
+definition from channels distributed across multiple channels.
+\end{itemize}
+\item \texttt{pspm\_tam}
+\begin{itemize}
+\item \texttt{TAM} stands for Trial Average Model. \texttt{pspm\_tam} allows
+to fit models on trial-averaged data. 
+\end{itemize}
+\end{itemize}
+
+\subsection*{Adjustments}
+\begin{itemize}
+\item \texttt{pspm\_pupil\_pp}
+\begin{itemize}
+\item Now \texttt{pspm\_pupil\_pp} creates channels of type \texttt{pupil}
+rather than \texttt{pupil\_pp}.
+\end{itemize}
+\item \texttt{pspm\_split\_sessions}
+\begin{itemize}
+\item \texttt{pspm\_split\_sessions} no longer drops markers at beginning
+or end of file. 
+\end{itemize}
+\end{itemize}
+
+\subsection*{Bug fixes}
+\begin{itemize}
+\item \texttt{pspm\_con}
+\begin{itemize}
+\item A bug caused by the new varargout logic of \texttt{pspm\_load1} has
+been fixed.
+\end{itemize}
+\item \texttt{pspm\_dcm}
+\begin{itemize}
+\item A bug that leads dropping sub-threshold missing data periods has been
+fixed.
+\end{itemize}
+\item \texttt{pspm\_get\_spike}
+\begin{itemize}
+\item A minor bug caused by a non-existing variable has been fxied.
+\end{itemize}
+\item \texttt{pspm\_scr\_pp}
+\begin{itemize}
+\item A bug that could change the original file if it saves epochs to \texttt{missing\_epoch.mat}
+has been fixed. 
+\end{itemize}
+\end{itemize}
+
+\subsection*{Improvements}
+\begin{itemize}
+\item \texttt{pspm\_extract\_segments}
+\begin{itemize}
+\item Now \texttt{pspm\_extract\_segments} process the data after excluding
+the missing data information that is provided in the model structure.
+\end{itemize}
+\item \texttt{pspm\_dcm}
+\begin{itemize}
+\item Processed data are now initialised as data matrix with \texttt{NaN}
+before inserting data of variable size.
+\end{itemize}
+\item \texttt{pspm\_glm}
+\begin{itemize}
+\item A warning has been added if any duration in onset definition is above
+\texttt{0} and modality is not \texttt{sps}.
+\end{itemize}
+\item \texttt{pspm\_overwrite}
+\begin{itemize}
+\item The logic of overwriting files in PsPM has been updated.
+\item Specifically, the overwriting operation is applicable only if there
+has been a file with the proposed name of the outputfile.
+\item A warning will be provided if the user chooses not to overwrite the
+file, since the output of PsPM will not be saved. 
+\end{itemize}
+\item \texttt{pspm\_split\_sessions}
+\begin{itemize}
+\item A misleading warning provided by \texttt{pspm\_split\_sessions} when
+it processes a missing epoch file has been fixed.
+\item The help text of \texttt{split\_sessions} in the GUI has been updated.
+\end{itemize}
+\end{itemize}
+
+\subsection*{UI improvements}
+\begin{itemize}
+\item PsPM's UI in Linux environment has been improved.
+\end{itemize}
+
 \bibliographystyle{pnas2009}
 \bibliography{PsPM}