Document new syntax \uXXXX.
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etc/NEWS
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etc/NEWS
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@ -3896,6 +3896,13 @@ text properties.
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`assoc-ignore-representation', which are still available, but have
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been declared obsolete.
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*** New syntax: \uXXXX and \UXXXXXXXX specify Unicode code points in hex.
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Use "\u0428" to specify a string consisting of CYRILLIC CAPITAL LETTER SHA,
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or "\U0001D6E2" to specify one consisting of MATHEMATICAL ITALIC CAPITAL
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ALPHA (the latter is greater than #xFFFF and thus needs the longer
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syntax). Also available for characters.
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** Displaying warnings to the user.
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