X-Git-Url: https://git.brokenzipper.com/gitweb?a=blobdiff_plain;f=NEWS;h=1484c555a8fafecab89d8a63bc3ffbbf0e5ceef5;hb=502abd93bd8bfba15677aceb221c4530d257bbab;hp=d6712d0fdf660691e242b49815bd0f868c8d3aeb;hpb=0ab5e64ac07d5b0162bf863f4da485d26760a8eb;p=chaz%2Ftar

diff --git a/NEWS b/NEWS
index d6712d0..1484c55 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-GNU tar NEWS - User visible changes. 2010-07-16
+GNU tar NEWS - User visible changes. 2010-09-23
 Please send GNU tar bug reports to <bug-tar@gnu.org>
 
 
@@ -11,6 +11,44 @@ time stamps to the full resolution.
 
 * Bugfixes.
 
+** More reliable directory traversal when creating archives
+
+Tar now checks for inconsistencies caused when a file system is
+modified while tar is creating an archive.  In the new approach, tar
+maintains a cache of file descriptors to directories, so it uses more
+file descriptors than before, but it adjusts to system limits on
+the number of file descriptors.  Tar also takes more care when
+a file system is modified while tar is extracting from an archive.
+
+The new checks are implemented via the openat and related calls
+standardized by POSIX.1-2008.  On an older system where these calls do
+not exist or do not return useful results, tar emulates the calls at
+some cost in efficiency and reliability.
+
+** Symbolic link attributes
+
+When extracting symbolic links, tar now restores attributes such as
+last-modified time and link permissions, if the operating system
+supports this.  For example, recent versions of the Linux kernel
+support setting times on symlinks, and some BSD kernels also support
+symlink permissions.
+
+** --dereference consistency
+
+The --dereference (-h) option now applies to files that are copied
+into or out of archives, independently of other options.  For example,
+if F is a symbolic link and archive.tar contains a regular-file member
+also named F, "tar --overwrite -x -f archive.tar F" now overwrites F
+itself, rather than the file that F points to.  (To overwrite the file
+that F points to, add the --dereference (-h) option.)  Formerly,
+--dereference was intended to apply only when using the -c option, but
+the implementation was not consistent.
+
+Also, the --dereference option no longer affects accesses to other
+files, such as archives and time stamp files.  Symbolic links to these
+files are always followed.  Previously, the links were usually but not
+always followed.
+
 ** Spurious error diagnostics on broken pipe.
 
 When receiving SIGPIPE, tar would exit with error status and