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40 id 1VkmYt-0000It-6y; Sun, 24 Nov 2013 22:10:11 -0500
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41 Date: Sun, 24 Nov 2013 22:10:11 -0500
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42 From: Austin Clements <amdragon@MIT.EDU>
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43 To: david@tethera.net
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44 Subject: Re: [PATCH 2/2] NEWS: News for big endian sha1 bug fix.
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45 Message-ID: <20131125031010.GK13399@mit.edu>
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83 Quoth david@tethera.net on Nov 24 at 5:29 pm:
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84 > From: David Bremner <david@tethera.net>
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86 > We could give more details about how to migrate tags, but I'm not sure
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87 > that it's a practical problem, or just a theoretical one.
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89 > NEWS | 14 +++++++++++++-
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90 > 1 file changed, 13 insertions(+), 1 deletion(-)
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92 > diff --git a/NEWS b/NEWS
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93 > index 3383ecf..31c6284 100644
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97 > -Notmuch 0.17~rc1 (2013-11-20)
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98 > +Notmuch 0.17~rc2 (2013-xx-yy)
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99 > =============================
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101 > +Incompatible change in SHA1 computation
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102 > +---------------------------------------
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104 > +Previously on big endian architectures like sparc and powerpc the
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105 > +computation of SHA1 hashes was incorrect. This meant that messages
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106 > +with overlong or missing message-ids were given different computed
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107 > +message-ids than on more common little endian architectures like i386
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108 > +and amd64. If you use notmuch on a big endian architecture, you are
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109 > +strongly advised to make a backup of your tags using `notmuch dump`
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110 > +before this upgrade. It should be possible to migrate the tags using a
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114 Should this mention how to find such messages? Something like
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117 awk '/^notmuch-sha1-[0-9a-f]{40} / {system("notmuch search id:" $1)}'
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