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Project Plan For Xtext, version 2.3.0


This document lays out the feature and API set for the Juno version of the Xtext (version 2.3.0).

Release Deliverables

The release deliverables have the same form as is found in most Eclipse projects, namely:

  • Xtext SDK (includes runtime and tooling components, with sources, examples, and documentation) (downloadable and update site).
  • Xtext runtime binary distribution (downloadable and update site).
  • Xtext tests (downloadable and update site)
  • Xbase SDK (includes a reusable expression langauge implemented in Xtext, with sources, examples, and documentation) (downloadable and update site).
  • Xbase runtime binary distribution (downloadable and update site).
  • Xbase tests (downloadable and update site)
  • Xtend2 SDK (a domein-specific language for customizing all aspects of Xtext. Built with Xtext and based on Xbase. Includes runtime and tooling components, with sources, examples, and documentation) (downloadable and update site).
  • Xtend2 runtime binary distribution (downloadable and update site).
  • Xtend2 tests (downloadable and update site)

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Release Milestones

Release milestone occurring at roughly 6 week intervals and follow the Platform milestone releases by approximately 2 weeks; that is, until the final 3.7 release of the Platform, upon which Xtext and other projects will release simultaneously. Xtext delivers milestones synchronized with the Juno release schedule.
M2 09/30/2011 bugzillas
M3 (2.1.0) 11/11/2011 bugzillas
M4 (2.2.1) 12/16/2011 bugzillas
M5 02/03/2012 bugzillas
M6 03/23/2012

API freeze

M7 05/11/2012 bugzillas
RC1 05/25/2012 bugzillas
RC2 06/01/2012 bugzillas
RC3 06/08/2012 bugzillas
RC4 06/15/2012 bugzillas
2.3.0 Final 06/27/2012

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Target Environments

In order to remain current, each Eclipse release targets reasonably current versions of the underlying operating environments. The Xtext project depends upon on the 3.5 (Galileo) release of the Eclipse Platform and other projects, and targets to run on version 1.5 of the Java Runtime Environment, Standard Edition.

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Compatibility with Previous Releases

Version 2.3 will be binary compatible with the Xtext version 2.0, 2.1 and 2.2. This means languages developed and compiled against 2.0, 2.1 and 2.2 will work with 2.3 without recompilation.

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Themes and Priorities

A list of project requirements and agreed upon implementation time frames is found in this document. For the milestones listed in this document, a set of overall themes is used to indicate what major set of functionalities is to be concentrated on for each. These themes are presented below, while the requirements document and associated Bugzilla entries are left to those wanting more detailed information on each.


Xbase is a sophisticated language library, providing the power of full-blown expressions to any Xtext-based language targeting the Java platform. In 2.3 it will be even simpler to implement JVM-based domain-specific languages.

Increase Applicability

One of our guiding principles is "make common things easier and rare things possible" suggests that we focus on extensibility as well as on simplicity with regards to all kinds of API. In Helios we want to allow Xtext to be used in more situations by providing an easy to reuse base language.

Performance and Scalability

Performance and scalability needs to be further enforced.

Clean Code

Keeping the quality of code high is key for long lasting software systems. We want to further keep our code clean, which means doing things like removing dead code, cleaning up / rewriting code we do no longer understand, avoiding redundancy, etc..

Eclipse 4.1

We do not explicitly test against 4.1.

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Appendix Legal Notices

  • Java is a trademark or a registered trademark of Sun Microsystems, Inc.
  • All other products or company names are mentioned for identification purposes only, and may be trademarks or service marks of their respective owners.

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