[PATCH 2/2] NEWS: News for big endian sha1 bug fix.

[david at tethera.net]

From: David Bremner <david at tethera.net>

We could give more details about how to migrate tags, but I'm not sure
that it's a practical problem, or just a theoretical one.
---
 NEWS | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/NEWS b/NEWS
index 3383ecf..31c6284 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,18 @@
-Notmuch 0.17~rc1 (2013-11-20)
+Notmuch 0.17~rc2 (2013-xx-yy)
 =============================
 
+Incompatible change in SHA1 computation
+---------------------------------------
+
+Previously on big endian architectures like sparc and powerpc the
+computation of SHA1 hashes was incorrect. This meant that messages
+with overlong or missing message-ids were given different computed
+message-ids than on more common little endian architectures like i386
+and amd64.  If you use notmuch on a big endian architecture, you are
+strongly advised to make a backup of your tags using `notmuch dump`
+before this upgrade. It should be possible to migrate the tags using a
+script.
+
 Command-Line Interface
 ----------------------
 
-- 
1.8.4.2