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diff --git a/fonts/newpx/README b/fonts/newpx/README
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+++ b/fonts/newpx/README
@@ -1,12 +1,25 @@
This package, based initially on pxfonts, provides many fixes and enhancements to that package, splitting it in two parts---newpxtext and newpxmath---which may be run independently of one another. It provides scaling, improved metrics, and other options. For proper operation, the packages require that the packages newtxmath, pxfonts and TeXGyrePagella be installed and their map files enabled. The text package now relies on an extension of the TeXGyrePagella Type1 fonts that is provided with this package. The accompanying MANIFEST-newpx.txt provides details of the extension as requested by GUST-FONT-LICENSE.txt
-Current version: 1.522 2023-09-27
+Current version: 1.53 2023-10-23
This material is subject to the LaTeX Project Public License. See http://www.ctan.org/license/lppl1.3
for the details of that license.
-Changes in version 1.522
-Corrections to documentation.
+Changes in version 1.53
+1. Addition of superior letters and figures distinct from and taller
+than numerators.
+2. Added superior versions of \textsection, \textparagraph, \textdagger,
+\textdaggerdbl, \textbardbl, \textasteriskcentered, mainly for use as symbolic footnote
+markers.
+3. Addition of options to newpxtext: supsraised, supscale, supsLspaced, \supsRspaced and supscolor---all affecting how superiors are rendered.
+4. Added modifications of some code from realscripts.sty for use in
+legacy latex.
+5. Corrections to documentation.
+6. Added \textsfrac macro for stacked fractions.
+7. Option scosf, which specifies oldstyle figure within small caps, has
+been extended and now works in all LaTeX engines with both the \scshape
+ switch and the macro \textsc{}.
+8. Some correction to encoding and fd files.
Changes in version 1.521
Small change to newpxtext.sty so that option scosf works as expected under lualatex.