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Hi,
not shure what you are asking but...:
xProject (latest version I know about is 0.62) was abandoned from its developer (McNaz) with some other modules (xAsset comes to mind) and later passed to ImCMS. Not shure if someone is deveoping it now. I have no plans (nor knowledge) to develop it, but the buauty of open source is that at any time someone can pick it up
xHelp (latest version I know about is 0.78 beta) is also not in development. I plan to use it in a project soon so will do some tests when have some spare time.
mantis was 0.18.3 - never tested it and it is not in development.