自从我升级到 TL2019 以来，我收到了很多 opentype 功能警告。例如
\documentclass{book}
\usepackage{libertine,fontspec}
\begin{document}
ads
\end{document}
我明白了
OpenType feature 'Numbers=Uppercase' (lnum) not(fontspec) available for font 'LinBiolinum_RB' with script(fontspec) 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers=Uppercase' (lnum) not(fontspec) available for font 'LinBiolinum_RB' with script(fontspec) 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers= Monospaced, Lining'(fontspec) (tnum) not available for font 'LinLibertine_RZI'(fontspec) with script 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers= Monospaced, Lining'(fontspec) (tnum) not available for font 'LinLibertine_RZI'(fontspec) with script 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers=Uppercase' (lnum) not(fontspec) available for font 'LinBiolinum_RB' with script(fontspec) 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers=Uppercase' (lnum) not(fontspec) available for font 'LinBiolinum_RB' with script(fontspec) 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers=Uppercase' (lnum) not(fontspec) available for font 'LinBiolinum_RB' with script(fontspec) 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers=Uppercase' (lnum) not(fontspec) available for font 'LinBiolinum_RB' with script(fontspec) 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers=Uppercase' (lnum) not(fontspec) available for font 'LinBiolinum_RB' with script(fontspec) 'CustomDefault' and language 'Default'.
OpenType feature 'Numbers=Uppercase' (lnum) not(fontspec) available for font 'LinBiolinum_RB' with script(fontspec) 'CustomDefault' and language 'Default'.
在我的文档中，我找不到可能导致问题的地方，无法检查是否存在一些缺失的字形等。有没有办法解决这个问题？
编辑：从\listfiles我在 Linux 上使用 Lualatex 获得的信息：
*File List*
book.cls 2018/09/03 v1.4i Standard LaTeX document class
bk10.clo 2018/09/03 v1.4i Standard LaTeX file (size option)
libertine.sty 2019/02/27 (Bob Tennent) Supports Libertine and Biolinum fonts
for all LaTeX engines.
ifxetex.sty 2010/09/12 v0.6 Provides ifxetex conditional
ifluatex.sty 2016/05/16 v1.4 Provides the ifluatex switch (HO)
xkeyval.sty 2014/12/03 v2.7a package option processing (HA)
xkeyval.tex 2014/12/03 v2.7a key=value parser (HA)
textcomp.sty 2018/08/11 v2.0j Standard LaTeX package
ts1enc.def 2001/06/05 v3.0e (jk/car/fm) Standard LaTeX file
fontspec.sty 2019/03/15 v2.7c Font selection for XeLaTeX and LuaLaTeX
xparse.sty 2019-05-03 L3 Experimental document command parser
expl3.sty 2019-05-09 L3 programming layer (loader)
expl3-code.tex 2019-05-09 L3 programming layer
l3pdfmode.def 2019-04-06 v L3 Experimental driver: PDF mode
fontspec-luatex.sty 2019/03/15 v2.7c Font selection for XeLaTeX and LuaLaTeX
fontenc.sty
tuenc.def 2018/08/11 v2.0j Standard LaTeX file
fontspec.cfg
LinLibertine_R.tex
LinBiolinum_R.tex
LinBiolinum_K.tex
LinLibertine_I.tex
LKey.tex
ts1cmr.fd 2014/09/29 v2.5h Standard LaTeX font definitions
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