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Re: [e4-dev] Eclipse Project 4.0 Release

A small set of Eclipse Platform bundles have been forked in the 4.0 stream. Their version numbers vary depending on what has changed in them. You can upgrade from a 3.6 build to a 4.0 build, but not vice-versa (it's a one way trip). A given version of org.eclipse.sdk feature "locks" a precise version of the Platform/JDT/PDE features, so you can't mix and match them if you have the 4.0 SDK installed. If you install the 4.0 stream platform runtime binary build, you should be able to pick up different versions of PDE and JDT. In general, since the 4.0 stream build is picking up most of the bundles directly from the 3.6 stream build, there is no reason to do this.

As for messaging about 4.0, we tried to describe this in the first paragraph of the 4.0 plan. There likely won't be many new features for an end user, apart from a new look and feel, and perhaps more flexibility in laying out views and editors. The underlying technology will be "1.0" level so the casual or conservative user will likely not migrate to it. I think the simultaneous release train remains the primary mechanism for most end users to consume Eclipse technology, and the platform 4.0 release won't be part of the release train at all for 2010. Of course we think there's some pretty cool stuff in here and it does represent the long term direction of the platform, so people building layers on top of the platform and RCP application developers should certainly be checking out the 4.0 release. I'm sure there will be more conversations about how to get the right word out as we get closer to the release..


Ian Bull <irbull@xxxxxxxxxxxxxxxxx>
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04/17/2010 01:01 PM

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Re: [e4-dev] Eclipse Project 4.0 Release

This is very exciting, thanks for the update John!

I have two questions about this.

First, have any of the Eclipse 3.x platform bundles changed in the 4.0 SDK?  If they have, what version numbers (and update descriptors) are they using?  I'm wondering if we can install Helios and "upgrade" to the 4.0 SDK, and then use the 3.x update sites for the PDE/JDT/Platform updates?  Or, once you go to the 4.0 SDK will you be required to use the 4.0 update sites for everything?  -- Maybe it's a little too early to try this yet.

Secondly, what should we (Eclipse committers) be telling people about Eclipse 4.0?  Obviously there are lots of people who simply use Eclipse as their IDE of choice.  Are the plans to produce EPP packages for Eclipse 4.0?  I imagine that when we release Eclipse 3.6 and a month later release Eclipse 4.0, there will be some confusion among users regarding what version they should use.  From what I can tell, it appears that there will be very few "end user features" in Eclipse 4.0.  However, I don't want to discourage people from using it if it's the intended upgrade path (Install 3.6 and upgrade to 4.0 in July).

Again, this is awesome!  I'm been following the e4 lists for at least 2 years now and it's really exciting to see all this work come together.  Congratulations to everyone involved.


On Fri, Apr 16, 2010 at 11:59 AM, John Arthorne <John_Arthorne@xxxxxxxxxx> wrote:

For the past eight months we have been working towards a July 2010 release tentatively called the e4 1.0 release. One of the major goals of this release was to bring the e4 technology delivered in our July 2009 "0.9" release up to a level of maturity and stability that we could run the Eclipse platform and its ecosystem of plug-ins on top of it. As a community we have been referring to this combination of the existing Eclipse platform with e4 technology as "Eclipse 4.0".

Last week we began building the full Eclipse 4.0 SDK, and delivered it as part of our M5 milestone. This build combines some e4 components, the e4 compatibility layer, and the Eclipse project 3.6 SDK. With this milestone it is time to switch emphasis from incubating e4 work to focus on graduating, polishing, and delivering this Eclipse 4.0 SDK. Since this combined release incorporates plug-ins from several Eclipse sub-projects, it would be incorrect to call it an e4 release. To reflect this reality, and our primary emphasis on the Eclipse 4.0 SDK deliverable, the Eclipse project PMC has decided to take the following steps:

- We will no longer refer to the "e4 1.0 release" in our plans and downloads after M5. We will instead call our July 2010 release the "Eclipse SDK 4.0" release. This deliverable will combine components from the Eclipse Platform, JDT, PDE, Equinox, ECF, and EMF out of the Helios release, with the e4 components required to build the Eclipse 4.0 SDK.

- CSS Styling, Modeled Workbench, and some of the core e4 programming model infrastructure have matured in e4 and will move into the Eclipse Platform project prior to the July release. This new technology allows building the Eclipse 4.0 SDK on top of it, which thus only depends on graduated components.
- e4 _javascript_ tooling has been moved to the JSDT project under the Webtools top-level project.

- Other components such as SWT Browser Edition, _javascript_ modularity, XWT, Toolkit Model, Bespin Server, and the new e4 resources work around semantic file systems are going to remain in the e4 incubator for now. These components have not reached the level of stability and community required for graduation into a mature project. We will continue to evaluate whether more components should graduate either in this release or later releases, based on their progress and adoption.

- The e4 components that remain in the incubator will release simultaneously with the Eclipse top-level project's 4.0 release, and will be available in a separate release repository, much like the Helios repository and EPP packages incorporate both incubating and mature components in a single release. Since we intend to keep the e4 project as a perpetual incubator, it doesn't make sense to attach a traditional version number to the incubating e4 portion of the release. Where necessary, we will refer to the e4 incubator portion as the "e4 July 2010" downloads (for example on the e4 downloads page). Version numbers of individual e4 plug-ins will evolve according to the Eclipse project's standard version numbering guidelines.

- We will continue running e4 incubator builds throughout the July 2010 release cycle (and beyond). In addition we will run Eclipse project 4.0 stream builds. Until the Eclipse project Helios release is completed, we will run these 4.0 stream builds out of the "R4_HEAD" branch of the Eclipse project repository. Note that the vast majority of plug-ins don't require branching, and will be consumed directly from the "R3.6" version tag produced by the Helios release.

A draft plan of the Eclipse Project 4.0 release is now available [1]. This plan is quite similar to our previous e4 plan, with the same milestones and timeline, and most of the same plan items.


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