We are happy to announce Dezyne 2.20 which introduces global function and foreign function. This release represents 111 commits over three years.

See the NEWS below for a brief summary.

Here is the Dezyne home page: dezyne.org

What's next?

In the next releases we would like to see:

• Improved performance of the Well-formedness check.
• Performance improved parse infrastructure including normalization.
• New sequential simulator infrastructure with improved support for systems, constraining interfaces, shared state, and debugging communcations labeled with <external> and <defer>.

See the ROADMAP in GIT for details.

Enjoy!
The Dezyne developers.

Download

git clone git://git.savannah.nongnu.org/dezyne.git

Here are the compressed sources and a GPG detached signature[*]:
dezyne-2.20.0.tar.gz
dezyne-2.20.0.tar.gz.sig

Here are the SHA1 and SHA256 checksums:

05b6663387c120a531c3dc9a97c9c354a829c817  dezyne-2.20.0.tar.gz  
d0d205f3b37d6e603765d1e330e5724897e2ed4802cc4630bd1b43291d02b0ec  dezyne-2.20.0.tar.gz

[*] Use a .sig file to verify that the corresponding file (without then .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 .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 1A858392E331EAFDB8C27FFBF3C1A0D9C1D65273

and rerun the gpg --verify command.

This release is based on the dezyne git repository, available as

git clone git://git.savannah.nongnu.org/dezyne.git

with commit tagged as v2.20.0.

For a summary of changes and contributors, see:

git.sv.gnu.org/gitweb/?p=dezyne.git;a=shortlog;h=v2.20.0

or run this command from a git-cloned dezyne directory:

git shortlog v2.19.3..v2.20.0

Alternatively, Dezyne can be installed using GNU Guix:

guix pull  
guix install dezyne

NEWS

Changes in 2.20.0 since 2.19.3

• Language

  • Global functions are now supported.
  • Foreign functions are now supported.

• Commands

  • A new command, dzn test has been added; offering an initial version of LTS-based testing.

• Code

  • The C++ code is being checked using -Wredundant-decls.

Thanks to everyone who contributed to this release:

53	Janneke Nieuwenhuizen
 5	Paul Hoogendijk
53	Rutger van Beusekom

For changes in the previous release see Dezyne release 2.19.3.

About Dezyne

Dezyne is a programming language and a set of tools to specify, validate, verify, simulate, document, and implement concurrent control software for embedded and cyber-physical systems.

The Dezyne language has formal semantics expressed in mCRL2 developed at the department of Mathematics and Computer Science of the Eindhoven University of Technology (TUE). Dezyne requires that every model is finite, deterministic and free of deadlocks, livelocks, and contract violations. This is achieved by means of the language itself as well as builtin verification through model checking. This allows the construction of complex systems by assembling independently verified components.

Dezyne is free software, it is distributed under the terms of the GNU Affero General Public Licence version 3 or later.

The Dezyne research and development on the language and command line tooling, also known as the Dezyne core, is the responsibility of Reasonable Sourcery commisioned by Verum.

About Verum

Verum, the organization behind the Dezyne language, is committed to continuing to invest in the language for the benefit of all its users. Verum assists its customers and partners in solving the software challenges of today and tomorrow, by offering expert consultancy on the application of the Dezyne language and the development and use of its tools, as well as on Verum's commercial tools like Verum-Dezyne's IDE support based on the LSP (Language Server Protocol), interactive integrated graphics, interactive simulation, (custom) code generation and (custom) runtime library support.

About Reasonable Sourcery

Reasonable Sourcery is the cooperative research and development spin-off organization of Verum.