Eclipse Orion 13.0

Release Date

The main deliverables for the Orion 13.0 release are a development environment that runs in the browser with a multi-user server based on a Node (server and Electron app) or Java back end.

With each of these two runtimes, the client code representing the features of Orion will be served to a supported browser and allow additional functionality to be installed client side through a plug-in framework.

Primary support is for Web programming languages, however any file type can be edited.


Orion aims to provide compatibility for plugins. Plugins written for previous versions of Orion, that only use well documented services, will continue to work in Orion 13.0.

Documented server REST API has only changed in compatible ways. Existing client code running against previous versions of the Orion server (either Java or Node) will continue to work in Orion 13.0.

No compatibility is provided within Orion server code, on either Java or Node servers.


All client side messages are externalized, and if additional language packs are present they will be used, based on the browser's language settings. Server strings are not externalized and messages from third party libraries used by Orion are not guaranteed to be externalized.

Target Environments

Java7 Based runtime for the Orion Server

Node.js (> v0.10.21) Based runtime for the Orion Node Server

Client Side Browser Support

  • Chrome/Chromium 48+
  • Firefox 45+
  • IE 11+
  • Safari 9+

Language Server API

Investigate modifying the Orion language tooling to use / implement the Microsoft Language Server Protocol.

Orion Electron App

Implement Orion as an Electron App so that it can run outside the browser.


Improve accessibility by addressing problems in traversal, coloring and screen reading

Complete the Node Server

Complete the implementation of the Orion Node Server with an eye toward deprecating the Java Server.

Move Orion Development to

Investigate moving Orion to

Ensure JavaScript Tooling Currency

Ensure that JS/HTML/CSS tooling supports the latest JavaScript standards and continues to implement compelling features.