No big changes, but a sufficiently significant change in the functionality to require a new minor version, rather than just a new release number.
-Q options (see item `-Q,
--query=[keyword-list]') now write their output lines (to
stdout) prefixed by the option letters, so that the output
of -Qf now consists of lines starting
`Qf '. This makes it easier to disentangle
the output if several of these options are present -- it
was added when option -Qb was added -- but
means that any scripts parsing the previous version's
output would break.-Rf and -Rb added (see item `-R,
--colours=[keyword-value-list],
--colors=[keyword-value-pairs]'), to set the foreground and
background colours on the command line, rather than just
using the foreground
special. This is still a bit rudimentary, as it can
be done only once, for the whole document.