note on version skew; mini-changelog

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Joey Hess 2014-03-19 19:55:24 -04:00
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@ -143,3 +143,23 @@ set to "standard" will use the standard expression.
Or, you could make a new group, with your own custom preferred content
expression tuned for your needs, and every repository you put in this
group and make its preferred content be "groupwanted" will use it.
## upgrades
It's important that all clones of a repository can understand one-another's
preferred content expressions, especially when using the git-annex
assistant. So using newly added keywords can cause a problem if
an older version of git-annex is in use elsewhere. When an old version
of git-annex sees a keyword it does not understand, it assumes that keyword
will match *all* files.
Here are recent changes to preferred content expressions, and the version
they were added in.
* "standard" 5.20140314
(only when used in a more complicated expression; "standard" by
itself has been supported for a long time)
* "groupwanted=" 5.20140314
* "metadata=" 5.20140221
* "lackingcopies=", "approxlackingcopies=", "unused=" 5.20140127
* "inpreferreddir=" 4.20130501