subfigure and subfig packages deprecated

There are at least four classes that aren't compatible with caption (hence with subcaption), whereas subfig is a substitute when called as

\usepackage[caption=false]{subfig}

1. The ws-proc9x6 class (and related ones by the same publisher), see how to get the ws-procs9x6 document class to work with subcaption package?

2. tufte-book and the other similar classes, see Problem with tufte-book and subfigure

3. IEEEtran, see 2-col floats and citation order problem

4. REVTeX, see subfigures with revtex?

It's true that subfig doesn't cooperate well with hyperref, but when the alternative is no subfloats at all …

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Related subfloat discussion is also given in subcaption vs. subfig: Best package for referencing a subfigure

I was able to avoid subfig completely. Used The Subfig Package documentation: "Do You Need This Package?"

\begin{figure}%
\centering
\parbox{1.2in}{...figure code...}%
\qquad
\begin{minipage}{1.2in}%
...figure code...
\end{minipage}%
\caption{Here are two figures side-by-side.}%
\label{fig:1figs}%
\end{figure}

Thanks for the info! I'm sure it will be even more useful as I dig into the package more.