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p2 repo 4.0.6 (plugin RTC for eclipse) is suitable for every eclipse version?

One answer

The official support versions are 3.6.2.3, 3.7.2 and 4.2.2.1.
https://jazz.net/wiki/bin/view/Deployment/CLMSystemRequirements405406#B4_Eclipse_IDE_RTC_Eclipse_Clien
Eclipse Mars will be too new for RTC 4.0.6. Even for RTC 5.0.2, quite a few users reported issues here when they installed it with Eclipse Mars. Eclipse Mars is only officially supported starting with RTC 6.0.
https://jazz.net/wiki/bin/view/Deployment/CLMSystemRequirements405406#B4_Eclipse_IDE_RTC_Eclipse_Clien
Eclipse Mars will be too new for RTC 4.0.6. Even for RTC 5.0.2, quite a few users reported issues here when they installed it with Eclipse Mars. Eclipse Mars is only officially supported starting with RTC 6.0.
Comments

Thank you Donald.
I suppose that I can't even use the RTC Client 6.0 o p2 repo 6.0 with a server RTC 4.0.6, as in the previous versions, isn't it?
Ciao
Alberto

The client RTC version must be the same or maximum 1 major version smaller than the server (n-1) See: https://jazz.net/help-dev/clm/topic/com.ibm.jazz.install.doc/topics/c_n-1.html