We are pleased to announce GNU Guile release 1.9.1.  This is the next
pre-release of what will eventually become the 2.0 release series.  It
provides many new noteworthy features, most notably the addition of a
compiler and virtual machine.  We encourage you to test them and provide
feedback to `guile-devel@gnu.org'.

The Guile web page is located at http://gnu.org/software/guile/, and
among other things, it contains a link to the Guile FAQ and pointers to
the mailing lists.

Guile is an implementation of the Scheme programming language, with
support for many SRFIs, packaged for use in a wide variety of
environments.  In addition to implementing the R5RS Scheme standard,
Guile includes a module system, full access to POSIX system calls,
networking support, multiple threads, dynamic linking, a foreign
function call interface, and powerful string processing.

Guile can run interactively, as a script interpreter, and as a Scheme
compiler to VM bytecode.  It is also packaged as a library so that
applications can easily incorporate a complete Scheme interpreter/VM.
An application can use Guile as an extension language, a clean and
powerful configuration language, or as multi-purpose "glue" to connect
primitives provided by the application.  It is easy to call Scheme code
From C code and vice versa.  Applications can add new functions, data
types, control structures, and even syntax to Guile, to create a
domain-specific language tailored to the task at hand.


Here are the compressed sources:
  ftp://alpha.gnu.org/gnu/guile/guile-1.9.1.tar.gz   (4.7MB)

Here are the GPG detached signatures[*]:
  ftp://alpha.gnu.org/gnu/guile/guile-1.9.1.tar.gz.sig

Here are the MD5 and SHA1 checksums:

b9baf59b1de42beadb6591311ca79cab  guile-1.9.1.tar.gz
d6dff7936e0428639eee0f46c34c4b14a8688e3f  guile-1.9.1.tar.gz

[*] You can use either of the above signature files to verify that
the corresponding file (without the .sig suffix) is intact.  First,
be sure to download both the .sig file and the corresponding tarball.
Then, run a command like this:

  gpg --verify guile-1.9.1.tar.gz.sig

If that command fails because you don't have the required public key,
then run this command to import it:

  gpg --keyserver keys.gnupg.net --recv-keys EB1F5364

and rerun the `gpg --verify' command.

This release was bootstrapped with the following tools:
  Autoconf 2.63
  Automake 1.11
  Libtool 2.2.6


This is a new release series with many new features and differences
compared to 1.8.  The complete list of changes compared to the 1.8.x
series is available in the `NEWS' file.

Changes since the 1.9.0 pre-release:

  * `scm_set_port_seek' and `scm_set_port_truncate' use the `scm_t_off' type
  * Automatically compiled files will be placed in ~/.cache, not ~/.guile-ccache.
  * New language: Brainfuck.
  * A number of Scheme files were corrected to be LGPLv3+.
  * Bytevectors may now be accessed with a C-friendly API.
  * Bytevectors are now accessible using the generalized-vector API.
  * Meta-commands to the REPL work better with strange languages.
  * The object code file format has changed.
  * Vector access has been sped up considerably.
  * The `long_long' C type, deprecated in 1.8, has been removed.
  * And of course, the usual collection of bugfixes.

You can follow Guile development in the Git repository and on the Guile
mailing lists.  Guile builds from the `master' branch of Git have
version number 1.9.x.

Guile versions with an odd middle number, e.g., 1.9.*, are unstable
development versions.  Even middle numbers indicate stable versions.
This has been the case since the 1.3.* series.

Please report bugs to `bug-guile@gnu.org'.  We also welcome reports of
successful builds, which can be sent to the same email address.


Ludovic Courtès, on behalf of the Guile team.