Do not overwrite unchanged target

[goredo.git] / doc / news.texi

diff --git a/doc/news.texi b/doc/news.texi
index 035acdc6601b63b59dea707645b33bf7ae1fd689..088cc03a77955564e3ae881be21abebf7e7fcd6e 100644 (file)
--- a/doc/news.texi
+++ b/doc/news.texi
@@ -1,4 +1,5 @@
 @node News
+@cindex news
 @unnumbered News
 
 @anchor{Release 1_23_0}
@@ -8,6 +9,13 @@
     @command{redo-ifchange}'s @option{-f} option forces each target
     rebuilding. Comparing to @command{redo}, it will parallelize the
     process.
+@item
+    Inode's number is also stored as dependency information, just to
+    prevent possible @code{ctime} collision of two files.
+@item
+    Performance optimization: do not use target's temporary output file
+    at all, if its hash equals to already existing target's one. Just
+    touch existing target file instead.
 @end itemize
 
 @anchor{Release 1_22_0}