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This package, initially based on txfonts, provides many fixes and enhancements to the txfonts package, splitting it into two separate packages---newtxtext and newtxmath, which may be run independently of one another. It provides scaling, improved metrics, and other options. In particular, newtxmath offers a libertine option which substitutes Linux Libertine (provided with TeXLive and MikTeX) italic and Greek letters for the default Times letters, providing a good match for the Libertine text font, which is heavier than Computer Modern but lighter than Times, and in my experience, looks very sharp and clear on the screen.
-Current version: 1.744 2024-04-01
+Current version: 1.754 2024-09-22
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 1.754
+Modified some entries in the \DeclareMathSizes tables, mainly so that 9pt scripstyle would render a little smaller, and more like 90% of the value for 10pt.
+
+Changes in version 1.753
+Small changes to a metrics and/or side-bearings for math symbols
+-, +, \times, \div, <, >, \leq, \geq, =, \neq in order to match
+better. (Thanks, Henrik Schumacher.)
+
+Changes in version 1.752
+Small addition to newtxmath so that with option gelasio, the operator
+fd is changed to ot1mingelasio.fd, whose fonts have XCharter Greek upper case.
+
+Changes in version 1.751
+Reworked the scaling calculations in newtx.sty to repair the handling of the scaling of sans text.
+
+Changes in version 1.75
+Added code to newtx.sty and newtxmath.sty to support gelasio small caps, additional
+figures in pdflatex and math. (Best to use gelasiomath.sty as the interface as it adds
+supporting code and calls newtx and thereby newtxmath in the proper order
+and with matching scales.)
+
Changes in version 1.744
-Added code to newtxtext.sty that had been remove in error from an earlier version, preventing Helvetica sans from scaling properly. (Thanks Dana Nau.)
+Added code to newtxtext.sty that had been removed in error from an earlier version, preventing Helvetica sans from scaling properly. (Thanks Dana Nau.)
Changes in version 1.743
Updated the zut[b]mi[a].{tfm,vf} needed for the erewhon option to newtxmath.