\topheading{New features in MCFM-10}
\midheading{Downloads of earlier versions, MCFM-10}
\label{MCFM10download}
\begin{itemize}
\item \href{https://mcfm.fnal.gov/downloads/MCFM-10.2.2.tar.gz}{MCFM-10.2.2.tar.gz} (May 19th, 2022, updated November 4th, 2022)

\item \href{https://mcfm.fnal.gov/downloads/MCFM-10.1.tar.gz}{MCFM-10.1.tar.gz} (January 10th, 2022)

\begin{itemize}
\item C++ interface to tree and one-loop amplitudes as a replacement of OpenLoops and Recola \href{https://arxiv.org/abs/2107.04472}{[2107.04472]}
\item t-channel single-top-quark production at NNLO \href{https://arxiv.org/abs/2012.01574}{[2012.01574]},
see also \href{https://arxiv.org/abs/2109.10448}{[2109.10448]}
\item $q_T^2$ resummation for Diphoton production at N$^3$LL$^\prime$+NNLO \href{https://arxiv.org/abs/2107.12478}{[2107.12478]}
\end{itemize}

\item \href{https://mcfm.fnal.gov/downloads/MCFM-10.0.1.tar.gz}{MCFM-10.0.1.tar.gz} (March 29th, 2021, updated May 27th, 2021)

\begin{itemize}
\item N$^3$LL+NNLO $q_T^2$ resummation for the single boson processes $W^+,W^-,Z$ and $H$
and diboson processes $\gamma\gamma,Z\gamma,ZH\gamma\gamma,Z\gamma,ZH$ and $WH$.
See the \href{https://mcfm.fnal.gov/downloads/cute-mcfm.html}{CuTe-MCFM} site for further details.
\item Support for histograms with custom binning.
\item Streamlined compilation process into single CMake script.
\end{itemize}
\end{itemize}

\midheading{New features in MCFM-10.2}
\label{sec:10x2}

Version 10.2 of the code introduces the ability to compute diboson processes
to NNLO.  It also allows all NNLO calculations to be performed using two
variants of slicing: using 0-jettiness (as in previous versions) or $q_T$ (new).
Benchmark results are reported in Section~\ref{sec:scetqt}.

This version also extends the capabilities of the interface to allow a calculation
of one-loop amplitudes representing diboson+jet production with
a variety of $W$ and $Z$ boson decays, including all appropriate interferences.
The calculation of diboson amplitudes (without the presence of an additional
jet) has also been extended to include additional processes that include
interference contributions.
The new scattering amplitudes available are:
\begin{verbatim}
d u~ e- ve~ e+ e-
u d~ e+ ve e+ e-
u u~ e- e+ ve ve~
d u~ e- ve~ a g
u d~ e+ ve a g
u u~ e- e+ a g
u u~ e- ve~ mu+ vmu g
d u~ e- ve~ mu+ mu- g
u d~ e+ ve mu+ mu- g
u u~ e- e+ mu+ mu- g
u u~ e- e+ e- e+ g
u u~ e- e+ vmu vmu~ g
u u~ e- e+ ve ve~ g
\end{verbatim}
where, in addition, all relevant combinations of quark flavors are included.

A description of the new features added in recent releases (v9.0 onwards) is 
given in Section~\ref{mcfm9plus}.

\midheading{New features in MCFM-10.0}

For using the $q_T$ resummation of CuTe-MCFM please refer to \texttt{cute-mcfm.pdf}
and ref.~\cite{Becher:2020ugp}.

\paragraph{New plotting infrastructure.}
MCFM-10.0 implements a new plotting infrastructure that allows for much easier setup
and custom-binned histograms. The new style histograms can be enabled by setting \texttt{newstyle = 
.true.} in the \texttt{[histogram]} section of the input file. An example for $Z$ production with 
resummation and custom binning is given in \texttt{src/User/nplotter\_Z\_new.f90}. Each plotter
implements a new Fortran module with a function \texttt{setup()} that is called once at the 
beginning of MCFM to set up the histogram binnings. The function 
\texttt{book(p,wt,ids,vals,wts)} is called for each phase space point, calculates the observables 
based on the jet four-momenta in \texttt{p} and returns them in the \texttt{vals} array. The 
\texttt{wts} array is typically filled with \texttt{wt} for each observable, but can be modified to 
return a different weight to the histogramming routine. This is used in the example file to 
implement a transition function for the resummed and fixed-order components.

To adopt a new process to the new histograms, the file \texttt{src/Mods/mod\_SetupPlots.f90}
can be modified. More precisely, the function \texttt{setup\_plots} needs to import the plotting 
module of the process, call the setup routine for the process, and set the \texttt{pbook} pointer
to the actual \texttt{book} routine of the new plotting module.