1 files changed, 14 insertions, 1 deletions
diff --git a/doc/context/sources/general/manuals/luatex/luatex-enhancements.tex b/doc/context/sources/general/manuals/luatex/luatex-enhancements.tex
index 35c27cfb6..19f88234a 100644
--- a/doc/context/sources/general/manuals/luatex/luatex-enhancements.tex
+++ b/doc/context/sources/general/manuals/luatex/luatex-enhancements.tex
@@ -736,7 +736,7 @@ This primitive is still experimental but can be used to assign a meaning to an a
 character, as in:
 
 \starttyping
-\def\foo{bar} \letcharcode123\foo
+\def\foo{bar} \letcharcode123=\foo
 \stoptyping
 
 This can be a bit nicer that using the uppercase tricks (using the property of
@@ -759,6 +759,13 @@ the acceptable range is from 0 to 65535.
 These three primitives are like \type {\vbox}, \type {\hbox} and \type {\vtop}
 but don't apply the related callbacks.
 
+\subsection{\type {\vsplit}}
+
+The \type {\vsplit} primitive has to be followed by a specification of the
+required height. As alternative for the \type {to} keyword you can use \type
+{upto} to get a split of the given size but result has the natural dimensions
+then.
+
 \subsection{Images and Forms}
 
 These two concepts are now core concepts and no longer whatsits. They are in fact
@@ -794,6 +801,12 @@ optional parameters are not implemented for \type {\saveboxresource}.
 \useboxresource   width 20mm height 10mm depth 5mm \lastsavedboxresourceindex
 \stoptyping
 
+The box resources are of course implemented in the backend and therefore we do
+support the \type {attr} and \type {resources} keys that accept a token list. New
+is the \type {type} key. When set to non|-|zero the \type {/Type} entry is
+omitted. A value of 1 or 3 still writes a \type {/BBox}, while 2 or 3 will write
+a \type {/Matrix}.
+
 \subsection{\type {\nohrule} and \type {\novrule}}
 
 Because introducing a new keyword can cause incompatibilities, two new primitives