diff --git a/iacrcc/iacrcc.cls b/iacrcc/iacrcc.cls
index d73cee9..d988668 100644
--- a/iacrcc/iacrcc.cls
+++ b/iacrcc/iacrcc.cls
@@ -1,5 +1,5 @@
-\def\fileversion{0.64}
-\def\filedate{2024/03/29}
+\def\fileversion{0.65}
+\def\filedate{2024/04/09}
 
 \NeedsTeXFormat{LaTeX2e}[1995/12/01]
 \typeout{^^J  ***  LaTeX class for IACR Communications in Cryptology v\fileversion\space ***^^J}
@@ -799,7 +799,7 @@
   \gdef\@title{#2}%
   \if\relax\expandafter\detokenize\expandafter{\@IACR@title@running}\relax
     \gdef\@IACR@title@running{\@plaintitle}%
-    \StrLen{#2}[\IACR@tmp]%
+    \noexpandarg\StrLen{#2}[\IACR@tmp]%
     \ifnumgreater{\IACR@tmp}{70}{%
       \ClassWarning{iacrcc}{The title appears to be very long. Please define a running title by passing running=<runningtitle> to the \string\title\string macro}{}%
     }{}
diff --git a/iacrcc/iacrdoc.pdf b/iacrcc/iacrdoc.pdf
index c638abc..7a16e36 100644
Binary files a/iacrcc/iacrdoc.pdf and b/iacrcc/iacrdoc.pdf differ
diff --git a/iacrcc/iacrdoc.tex b/iacrcc/iacrdoc.tex
index 133ce09..d5d1aa9 100644
--- a/iacrcc/iacrdoc.tex
+++ b/iacrcc/iacrdoc.tex
@@ -30,7 +30,7 @@
 \def\BibLaTeX{Bib\LaTeX}
 
 \title[running  = {The iacrcc class},
-       subtitle = {iacrcc LaTeX Class Documentation (v0.64)}
+       subtitle = {iacrcc LaTeX Class Documentation (v0.65)}
       ]{How to Use the IACR Communications in Cryptology Class}
 
 \genericfootnote{This is a generic footnote produced with \cmd[...]{genericfootnote}.}
diff --git a/iacrcc/template.pdf b/iacrcc/template.pdf
index fa171fe..ed16524 100644
Binary files a/iacrcc/template.pdf and b/iacrcc/template.pdf differ
diff --git a/iacrcc/template.tex b/iacrcc/template.tex
index e849be1..9cf9cbd 100644
--- a/iacrcc/template.tex
+++ b/iacrcc/template.tex
@@ -33,8 +33,9 @@
        subtitle = {A Template}
       ]{How to Use the IACR Communications in Cryptology Class}
 % Where the options in square brackets “[ ]” are optional and control the following:
-% running: the running title displayed in the headers
-% subtitle: provide a subtitle
+% running:   the running title displayed in the headers
+% subtitle:  provide a subtitle
+% plaintext: a text version of the title (mandatory if macros are used in the title)
 
 % Define authors and affiliations
 % Authors are listed individually using the \addauthor tag followed by a list of affiliations.
@@ -52,6 +53,7 @@
 % orcid:    create a small clickable orcid logo next to the authors name 
 %           linking to the authors ORCID iD see: orcid.org.
 % footnote: create an author-specific footnote.
+% surname:  indicate the surname of the author for indexing purposes.
 % onclick:  define what to do when clicking on the external link logo
 %           next to the author name: e.g., can point to the academic webpage.
 % email:    define the e-mail address of this author.
@@ -94,8 +96,7 @@
 % city:       city name
 % state:      state or province name
 % postcode:   zip or postal code
-% country:    country name
-
+% country:    country name. Required for [version=final]
 \addaffiliation[ror     = 031v4g827,
                 street  = {Interleuvenlaan 80},
                 city    = {Leuven},