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Date:         Wed, 25 Mar 2015 11:41:39 +0000
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From: Joseph Wright <joseph.wright@MORNINGSTAR2.CO.UK>
Subject: Re: latex and unicode-letters
To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE
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Status: R

On 25/03/2015 11:24, David Carlisle wrote:
> On 25/03/2015 10:14, Joseph Wright wrote:
>>> >     Both EastAsianWidth.txt and LineBreak.txt have a version which
>>> we've
>>> >     talked about copying in to the processed file. Regrettably,
>>> there is
>>> >     no version in UnicodeData.txt:
> 
> 
> There is effectively a stable version number in the _directory_ name not
> the filename
> 
> so in this case 7.0.0. from
> 
> http://www.unicode.org/Public/7.0.0/
> 
> which is currently the same as
> 
> http://www.unicode.org/Public/UCD/latest/
> 
> If there need to be any revisions to Unicode 7 they would not be made in
> place but there would be a new
> 
> 
> http://www.unicode.org/Public/7.0.1/  or whatever.
> 
> This stability though only applies to _released_ versions of unicode
> so you can also get the Unicode 8 data
> 
> http://www.unicode.org/Public/8.0.0/
> 
> but that's a beta release and will change in place at that 8.0.0 address
> until Unicode 8 is published.
> 
> 
> So as long as we never pick up beta releases I think using a version
> number of (currently) 7.0.0 is enough.
> 
> 
> 
> David

Ah, good to know. That version string is in two of the files so can be
picked up automatically. I'll do that and add a note to the log file
saying words to the effect 'You better have a matching set of files'.
-- 
Joseph Wright