[FIXED] How to solve LaTeX package warning for "everypage"?

Issue

After updating MiKTeX, Texmaker and all installed packages, I receive an error when compiling the document. The error message is the following:

Package everypage Warning: Functionality similar to this package has recently been implemented in LaTeX. This package is now in legacy status. Please, don't use it in new documents and packages.

Package everypage Warning: You appear to be running a version of LaTeX providing the new functionality. Doing the best to deliver the original `everypage` interface on top of it. Strict equivalence is not possible, breakage may occur. If truly needed, Use `everypage-1x` to force the loading of an older code base.

The error is caused by the code \usepackage[some]{background}, also without the parameter "some". So the package background has a dependency to the package everypage which causes the error.

The document is compiling, but I would like to resolve the warning. How can I achieve this?

EDIT: Here you can find a compilable minimal example:

\documentclass[a4paper, parskip, 10pt]{scrartcl}
\usepackage[some]{background}%Warning
\definecolor{font}{RGB}{46, 49, 51}

\begin{document}
    \color{font}
    {\Huge Text}
\end{document}

Solution

Here is the cause: There was a recent update to LaTeX, documented here:

LaTeX News Issue 32, October 2020

The updated provided native hook management, including those related to page shipout - something that was provided by everypage. The package maintainer provided an update to everypage stating this:

Package is now in a legacy status. Functionality similar to that provided by this package is directly implemented in LaTeX since its 2020 Fall release. On new enough LaTeX formats, everypage now merely emulates its legacy interface on top of the new LaTeX mechanisms for compatibility reasons, while on older formats, it fall backs to its own previous code.

Do not use everypage in new documents and do not rely on it in new packages or classes of yours.

The maintainer of background will have to update the package to utilise the new hooks rather than rely on everypage. Alternatively, write your own background-like macros (whatever that may be).

In the interim you could just suppress the warnings using silence:

\usepackage{silence}
\WarningsOff[everypage]% Suppress warnings related to package everypage
\usepackage[...]{everypage}

Answered By - Werner

Answer Checked By - Clifford M. (PHPFixing Volunteer)