Eclipse package meaning

Problem: what do different packages of eclipse like

Indigo
Helios SR1
Helios
Galileo
Ganymede
Europa


Solution: These are code names for major releases of the Eclipse IDE/platform. For example, I think Galileo was Eclipse 3.5. They started relying heavily on the code names about 4-5 years ago, not sure why - it can be confusing post-release.

Helios is the latest stable release. "SR1" means there's been a service release applied (bug fixes).


source: http://in.answers.yahoo.com/question/index?qid=20110121055244AAEgJAj