diff --git a/development/autotests/ignoredTests b/development/autotests/ignoredTests
index 5c703de184..3204b332d4 100644
--- a/development/autotests/ignoredTests
+++ b/development/autotests/ignoredTests
@@ -39,8 +39,7 @@ Sublabel: special
 # XeTeX with TeX fonts
 ######################
 # XeTeX with TeX-fonts works only for input encodings "utf8-plain" and "ascii".
-# Ignore documents with other inputencoding values
-# but still allow dedicated XeTeX tests:
+# Ignore all (excect dedicated XeTeX tests):
 !export/export/.*xetex.*_pdf4_texF
 export/.*/(|ar|ca|cs|da|de|en|el|es|eu|fa|fr|gl|he|hu|id|it|nb||nl|pl|pt|pt_BR|pt_PT|ro|ru|sk|sl|sr|sv|uk).*_pdf4_texF
 
diff --git a/lib/RELEASE-NOTES b/lib/RELEASE-NOTES
index cf31d6b602..f7f889df52 100644
--- a/lib/RELEASE-NOTES
+++ b/lib/RELEASE-NOTES
@@ -25,7 +25,10 @@
   if desired.
 
 * LyX defaults to the "HE8" LaTeX font encoding with Hebrew if the
-  "Culmus" LaTeX fonts are installed. 
+  "Culmus" LaTeX fonts are installed.
+
+* Documents that use TeX fonts can only be compiled with XeTeX if the input
+  encoding is set to "utf8-plain" or "ascii".
 
 !!!The following pref variables were added in 2.4: