\f
Changes since Guile 1.3:
+* Changes to the stand-alone interpreter
+
+** New options interface: readline-options,
+readline-enable, readline-disable, readline-set!
+
+** Command line history is now restored from and saved to file
+
+If readline is used and the readline option `history-file' is enabled,
+the command line history is read from file when the interpreter is
+entered, and written to file on exit. The filename used can be
+specified with the environment variable GUILE_HISTORY. Default file
+name is "$HOME/.guile_history". Nothing special happens if errors
+occur during read or write.
+
+** Command line history length can now be customized.
+Command line history length is now controlled by the readline option
+`history-length'. Default is 200 lines.
+
+** All builtins now print as primitives.
+Previously builtin procedures not belonging to the fundamental subr
+types printed as #<compiled closure #<primitive-procedure gsubr-apply>>.
+Now, they print as #<primitive-procedure NAME>.
+
+** Backtraces slightly more intelligible.
+gsubr-apply and macro transformer application frames no longer appear
+in backtraces.
+
* Changes to Scheme functions and syntax
+** New functions: delq1!, delv1!, delete1!
+These procedures behave similar to delq! and friends but delete only
+one object if at all.
+
** New function: unread-string STRING PORT
Unread STRING to PORT, that is, push it back onto the port so that
next read operation will work on the pushed back characters.
If unread-char is called multiple times, the unread characters will be
read again in last-in first-out order.
+** New function: serial-map PROC LIST1 LIST2 ...
+Version of `map' which guarantees that the procedure is applied to the
+lists in serial order.
+
+** New syntax: collect BODY1 ...
+Version of `begin' which returns a list of the results of the body
+forms instead of the result of the last body form. In contrast to
+`begin', `collect' allows an empty body.
+
+** New functions: read-history FILENAME, write-history FILENAME
+Read/write command line history from/to file. Returns #t on success
+and #f if an error occured.
+
* Changes to the gh_ interface
** gh_scm2doubles