+This file describes recent user-visible changes in groff. Bug fixes
+are not described. There are more details in the man pages.
+
+VERSION 1.01
+============
+
+The groff command now understands the gtroff `-a' and `-i' options.
+
+With the `m' and `n' scale indicators, the scale factor is rounded
+horizontally before being applied. This makes (almost) no difference
+for devices with `hor' equal to 1, but it makes groff with -Tascii or
+-Tlatin1 behave more like nroff in its treatment of these scale
+indicators. Accordingly tmac.tty now calls the `nroff' request so
+that the `n' condition will be true.
+
+The device-specific macros (tmac.ps, tmac.dvi, tmac.tty and tmac.X)
+have been made to work at least somewhat with -C. In particular the
+special characters defined by these macros now work with -C.
+
+groff -Tdvi -p will now pass pic the -x flag; this will enable filling
+of arrowheads and boxes, provided that your dvi driver supports the
+latest version of the tpic specials.
+
+Eqn
+---
+
+There is a new `-N' option that tells eqn not to allow newlines in
+delimiters. This allows eqn to recover better from missing closing
+delimiters. The groff command will pass on a `-N' option to eqn.
+
+Grops
+-----
+
+You can now use psfig with grops. See the file ps/psfig.diff. I do
+not recommend using psfig for new documents.
+
+The command \X'ps: file F' is similar to \X'ps: exec ...' except that
+the PostScript code is read from the file F instead of being contained
+within the \X command. This was added to support psfig.
+
+Grodvi
+------
+
+There are font files HB and HI corresponding to cmsssbx10 and cmssi10.
+
+Macros
+------
+
+The groff -me macros now work with the -C option. As a result, they
+may also work with Unix nroff/troff.
+
+In -me, the $r and $R number registers now contain the line spacing as
+a percentage of the pointsize expressed in units (normally about 120).
+The previous definition was useless with low resolution devices such
+as X75 and X100.
+
+VERSION 1.00
+============
+
+A -ms-like macro-package is now included.
+
+The name for the Icelandic lowercase eth character has been changed
+from \(-d to \(Sd.
+
+Troff
+-----
+
+There is a new request `nroff', which makes the `n' built-in condition
+true and the `t' built-in condition false; also a new request `troff'
+which undoes the effect of the `nroff' request. This is intended only
+for backward compatibility: it is usually better to test \n(.H or
+\n(.V or to use the `c' built-in condition.
+
+The \R escape sequence has been deleted. Use \E instead.
+
+There are `break' and `continue' requests for use with the `while'
+request.
+
+There is a request `hym' that can ensure that when the current
+adjustment mode is not `b' a line will not be hyphenated if it is no
+more than a given amount short, and a request `hys' that can ensure
+that when the current adjustment mode is `b' a line will not be
+hyphenated if it can be justified by adding no more than a given
+amount of extra space to each word space.
+
+There is a request `rj' similar to `ce' that right justifies lines.
+
+A warning of type `space' will be given when a call is made to an
+undefined request or macro with a name longer than two characters, and
+the first two characters of the name make a name that is defined.
+This is intended to find places where a space has been omitted been a
+request or macro and its argument. This type of warning is enabled by
+default.
+
+Pic
+---
+
+A comma is permitted between the arguments to the `reset' command.
+
+For use with TeX, there is a new `-c' option that makes gpic treat
+lines beginning with `.' in a way that is more compatible with tpic
+(but ugly).
+
+Eqn
+---
+
+It is no longer necessary to add `space 0' at the beginning of
+complicated equations inside pictures.
+
+`prime' is now treated as an ordinary character, as in Unix eqn. The
+previous behaviour of `prime' as an operator can now be obtained using
+`opprime'.
+
+Xditview
+--------
+
+There are two new devices X75-12 and X100-12 which are the same as X75
+and X100 except that they are optimized for documents that use mostly
+12 point text.
+
+VERSION 0.6
+===========
+
+The installation process has been refined to make it easy for you to
+share groff with someone who has the same type of machine as you but
+does not have a C++ compiler. See the end of the INSTALL file for
+details.
+
+There is a man page for the tfmtodit program which explains how to use
+your own fonts with groff -Tdvi.
+
+There is a man page for afmtodit which explains how to use your own
+PostScript fonts with groff -Tps.
+
+The \N escape sequence is now fully supported. It can now be used to
+access any character in a font by its output code, even if it doesn't
+have a groff name. This is made possible by a convention in the font
+files that a character name of `---' refers to an unnamed character.
+The drivers now all support the `N' command required for this. The font
+description files have been updated to include unnamed characters.
+
+The `x' command in font description files has been removed: instead
+any unknown commands are automatically made available to the drivers.
+If you constructed your own font files with an earlier version of
+tfmtodit or afmtodit, you must construct them again using the current
+version.
+
+Characters between 0200 and 0237 octal are no longer legal input
+characters. Note that these are not used in ISO 8859.
+
+A command called `grog' has been added, similar to the `doctype'
+command described in Kernighan and Pike.
+
+Groff
+-----
+
+The groff command has some new options: -V prints the pipeline
+instead of executing it; -P passes an argument to the postprocessor,
+-L passes an argument to the spooler.
+
+There is a C++ implementation of the groff command. This handles some
+things slightly better than the shell script. In particular, it can
+correctly handle arguments containing characters that have a special
+meaning to the shell; it can give an error message when child
+processes other than the last in the pipeline terminate abnormally;
+its exit status can take account of the exit statuses of all its child
+processes; it is a little more efficient; when geqn is used, it
+searches for the eqnchar file in the same way that font metric files
+are searched for, rather than expecting to find it in one particular
+directory.
+
+Gtroff
+------
+
+There is font translation feature: For example, you can tell gtroff to
+use font `HR' whenever font `H' is requested with the line
+ .ftr H HR
+This would be useful for a document that uses `H' to refer to
+Helvetica.
+
+There are some new number registers: `.kern' contains the current kern
+mode, `.lg' the current ligature mode, `.x' the major version number,
+`.y' the minor version number, `.ce' the number of lines to be
+centered in the current environment, `.trunc' the amount of vertical
+space truncated by the most recently sprung vertical position trap,
+`.ne' the amount of vertical space needed in the last `ne' request
+that caused a vertical position trap to be sprung.
+
+The `cf' request now behaves sensibly in a diversion. If used in a
+diversion, it will now arrange for the file to be copied to the output
+when the diversion is reread.
+
+There is a new request `trf' (transparent file) similar to `cf', but
+more like `\!'.
+
+There is a new escape sequence `\Y[xxx]', roughly equivalent to
+`\X'\*[xxx]'', except that the contents of string or macro xxx are not
+interpreted, and xxx may contain newlines. This requires an output
+format extension; the drivers have been modified to understand this.
+Grops has also been modified to cope with newlines in the arguments to
+\X commands; grops has a new \X command mdef, which is like def except
+that it has a first argument giving the number of definitions.
+
+There is a new warning category `escape' which warns about unknown
+escape sequences.
+
+The `fp' request now takes an optional third argument giving the external
+name of the font.
+
+The `\_' character is now automatically translated to `\(ul' as in troff.
+
+The environment variable `GROFF_HYPHEN' gives the name of the file
+containing the hyphenation patterns.
+
+There is a `\C'xxx'' escape sequence equivalent to `\[xxx]'.
+
+Characters ", ', ), ], *, \(dg are now initially transparent for the purposes
+of end of sentence recognition.
+
+There is an anti-recusion feature in the `char' request, so you can
+say `.char \(bu \s+2\(bu\s-2'.
+
+The limit on the number of font positions has been removed.
+Accordingly `\n[.fp]' never returns 0.
+
+The restriction on the number of numbered environments has been removed.
+
+There is a new escape sequence `\E' that makes it possible to
+guarantee that an escape sequence won't get interpreted in copy-mode.
+The `\R' escape sequence is accordingly now deprecated.
+
+Gpic
+----
+
+Arguments of the form `X anything X' (in the `copy thru', `sh', `for',
+`if' and `define' constructs) can now be of the form `{ anything }'.
+
+If the `linethick' variable is negative (as it now is initially),
+lines will be drawn with a thickness proportional to the current point
+size.
+
+The `rand' function now takes no arguments and returns a number between
+0 and 1. The old syntax is still supported.
+
+`^' can be used in expressions to indicate exponentiation.
+
+In the `for' construct the argument to the by clause can be prefixed
+by `*' to indicate that the increment is multiplicative.
+
+A bare expression may be used as an attribute. If the current
+direction is `dir', then an attribute `expr' is equivalent to
+`dir expr'
+
+There is a `sprintf' construct that allows numbers to be formatted and used
+wherever a quoted string can be used.
+
+The height of a text object without an explicit height attribute is
+the number of text strings associated with the object times the value
+of the `textht' variable.
+
+The maximum height and width of a picture is controlled by the
+`maxpswid' and `maxpsht' variables.
+
+Gtbl
+----
+
+Gtbl can now handle gracefully the situation where the `ce' request
+has been applied to a table.
+
+Geqn
+----
+
+The `ifdef' primitive has been generalized.
+
+A tilde accent can be put underneath a box using `utilde'. This
+defined using a general `uaccent' primitive.
+
+Grops
+-----
+
+There is a new PostScript font downloading scheme which handles font
+downloading for imported illustrations. Previously, the name of the
+file containing the font was given in the `x download' line in the
+groff font metric file. Now, there is a `download' file which says
+for each PostScript font name which file contains that font. Grops
+can also now handle inter-font dependencies, where one downloadable
+font depends on some other (possibly downloadable) font.
+
+The `T' font has been removed. The characters it used to provide are
+now provided by `char' definitions in tmac.ps. TSymbol.ps has also
+been removed, and the tweaks it provided are now provided by `char'
+definitions.
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