bitcoin core 0.17 was just branched off from master: https://github.com/bitcoin/bitcoin/tree/0.17
0.17.0rc1 tag should be soon !
preliminary release notes can be found here: https://github.com/bitcoin-core/bitcoin-devwiki/wiki/0.17.0-Release-notes
dandelion is not merged or ready yet; will probably be 0.18 (there is a PR by Marco Falke, https://github.com/bitcoin/bitcoin/pull/13947)
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