X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=NEWS;h=670b624756763aa8b454602119ee6258c28213f4;hp=b102ba37a37c3da1bfccd7bb2f8913ad76bdbec8;hb=c3f0b654fc18b5f98bc65074e2118177e0f37ae9;hpb=510af2e9397373a562aa66f9a8027980057bfa09

diff --git a/NEWS b/NEWS
index b102ba37a..670b62475 100644
--- a/NEWS
+++ b/NEWS
@@ -1,36 +1,47 @@
+udev 134
+========
+
 udev 133
 ========
+Bugfix for kernels using SYSFS_DEPRECATED* option and finding parent
+block devices in some cases. No common distro uses this option anymore,
+and we do not get enough testing for this and recent udev versions. If
+this option is not needed to run some old distro with a new kernel,
+it should be disabled in the kernel config.
+
+Bugfix for the $links substitution variable, which may crash if no links
+are created. This should not happen in usual setups because we always
+create /dev/{block,char}/ links.
 
 The strings of the parsed rules, which are kept in memory, no longer
-contain duplicate entries, or duplicate tails of strings. This reduces
-the total size of a huge distro rule set to 0.08 MB, compared to the
-1.2MB of udev version 130.
+contain duplicate entries, or duplicate tails of strings. This, and the
+new rules parsing/matching code reduces the total in-memory size of
+a huge distro rule sets to 0.08 MB, compared to the 1.2MB of udev
+version 130.
 
 The export of DEVTYPE=disk/partition got removed from the default
-rules. This value is available from the kernel.
-The pnp shell script modprobe hack is removed from the default rules.
-ACPI devices have proper modalias support and take care of the same
-functionality.
+rules. This value is available from the kernel. The pnp shell script
+modprobe hack is removed from the default rules. ACPI devices have _proper_
+modalias support and take care of the same functionality.
 Installations which support old kernels, but install current default
-udev rules may need to add that to the compat rules file.
+udev rules may want to add that to the compat rules file.
 
 Libvolume_id now always probes for all known filesystems, and does not
-stop at the first match. Some filesystems are marked as "exclusive probe"
-and if one of these filesytem types match, libvolume_id will not return
-a probing result if any other filesystem type matches. This is intended
-to help with conflicting left-over signatures from earlier file system
-formats. That way, we no longer depend on the probing order for competing 
-signatures.
-In some cases the kernel allows to mount a volume with the old filesystem
-type, before it has been re-formatted with a different type. This can
-damage the new filesystem and lead to data loss. Because volume_id can
-not decide which is the correct signature, the wrong signatures need to
-be removed manually from the volume, or the volume needs to be reformatted
-to make filesystem auto-detection and possible auto-mounting working.
+stop at the first match. Some filesystems are marked as "exclusive probe",
+and if any other filesytem type matches at the same time, libvolume_id
+will, by default, not return any probing result. This is intended to prevent
+mis-detection with conflicting left-over signatures found from earlier
+file system formats. That way, we no longer depend on the probe-order
+in case of multiple competing signatures. In some setups the kernel allows
+to mount a volume with just the old filesystem signature still in place.
+This may damage the new filesystem and cause data-loss, just by mounting
+it. Because volume_id can not decide which one the correct signature is,
+the wrong signatures need to be removed manually from the volume, or the
+volume needs to be reformatted, to enable filesystem detection and possible
+auto-mounting.
 
 udev 132
 ========
-
 Fix segfault if compiled without optimization and dbg() does not get
 compiled out and uses variables which are not available.