diff --git a/manual/luatex-callbacks.tex b/manual/luatex-callbacks.tex
index 293634dbed59bdab390348b44f82e9793d5a8dd0..37213eb73434e40032579b36fe2525d2d7c51ad7 100644
--- a/manual/luatex-callbacks.tex
+++ b/manual/luatex-callbacks.tex
@@ -397,16 +397,15 @@ end
 The string reports the group code. From this you can deduce from
 what list you can give a treat.
 
-\starttabulate
-\NC \bf group codes        \NC \bf pointer \NC \NR
-\HL
-\NC\type {pre_box}         \NC \type {contrib_head}    \NC \NR
-\NC\type {pre_adjust_tail} \NC \type {pre_adjust_head} \NC \NR
-\NC\type {just}            \NC \type {just_box}        \NC \NR
-\NC\type {adjust_tail}     \NC \type {adjust_head}     \NC \NR
+\starttabulate[|lT|p|]
+\NC \rmbf value     \NC \bf explanation                              \NC \NR
+\NC pre_box         \NC interline material is being added            \NC \NR
+\NC pre_adjust      \NC \type {\vadjust} material is being added     \NC \NR
+\NC box             \NC a typeset box is being added (always called) \NC \NR
+\NC adjust          \NC \type {\vadjust} material is being added     \NC \NR
 \stoptabulate
 
-\subsection{\type {buildpage_filter} and \type {contribute_filter}}
+\subsection{\type {buildpage_filter}}
 
 This callback is called whenever \LUATEX\ is ready to move stuff to the main
 vertical list. You can use this callback to do specialized manipulation of the
@@ -435,20 +434,6 @@ state is with respect to the \quote {current page}. The possible values for the
 \NC end             \NC \LUATEX\ is terminating (it's all over)   \NC \NR
 \stoptabulate
 
-And for the \type {contribute_filter} called in the post line break handler
-we have four cases (three are only called when there is a need for it).
-
-\starttabulate[|lT|p|]
-\NC \rmbf value     \NC \bf explanation                              \NC \NR
-\NC pre_box         \NC interline material is being added            \NC \NR
-\NC pre_adjust      \NC \type {\vadjust} material is being added     \NC \NR
-\NC box             \NC a typeset box is being added (always called) \NC \NR
-\NC adjust          \NC \type {\vadjust} material is being added     \NC \NR
-\stoptabulate
-
-Just before the \type {box} related call we have a callout to the \type
-{append_to_vlist_filter}. These callbacks do not replace any internal code.
-
 \subsection{\type {build_page_insert}}
 
 This callback is called when the pagebuilder adds an insert. There is not much
@@ -456,6 +441,14 @@ control over this mechanism but this callback permits some last minute
 manipulations of the spacing before an insert, something that might be handy when
 for instance multiple inserts (types) are appended in a row.
 
+\startfunctioncall
+function(<number> n, <number> i)
+    return <number> register
+end
+\stopfunctioncall
+
+with
+
 \starttabulate[|lT|p|]
 \NC \rmbf value     \NC \bf explanation \NC \NR
 \NC n \NC the insert class              \NC \NR
diff --git a/manual/luatex.pdf b/manual/luatex.pdf
index f3db646edbea3c5817b08bdf65f591ccfec7adbf..9ec2f5fce5207f7b9cca052a9e52ab88e6b5e405 100644
Binary files a/manual/luatex.pdf and b/manual/luatex.pdf differ