diff --git a/CHANGES b/CHANGES
index 86d14de79..47dcd2e7e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -126,6 +126,7 @@ Bugs fixed
 * #5614: autodoc: incremental build is broken when builtin modules are imported
 * #5627: qthelp: index.html missing in QtHelp
 * #5659: linkcheck: crashes for a hyperlink containing multibyte character
+* #5754: DOC: Fix some mistakes in :doc:`/latex`
 
 Testing
 --------
diff --git a/sphinx/texinputs/LICRlatin2utf8.xdy b/sphinx/texinputs/LICRlatin2utf8.xdy
index 60a24b421..31c80f97c 100644
--- a/sphinx/texinputs/LICRlatin2utf8.xdy
+++ b/sphinx/texinputs/LICRlatin2utf8.xdy
@@ -29,6 +29,9 @@
 ;;   to preamble of LaTeX document.  However this character is not supported
 ;;   by the TeX "times" font used by default by Sphinx for pdflatex engine.
 ;;
+;;     **Update**: since LaTeX 2018/12/01, the \j as well as \SS, \k{} and
+;;                  \.{} need no extra user declaration anymore.
+;;
 ;; - ẞ needs \DeclareUnicodeCharacter{1E9E}{\SS} (but ß needs no extra set-up).
 ;;
 ;; - U+02DB (˛) and U+02D9 (˙) are also not supported by inputenc