Well now, today sees the release of Synapse 0.28.0!
This release is particularly exciting as it's a major bump mainly thanks to lots and lots of contributions from the wider community - including support for running Synapse on PyPy (thanks Valodim) and lots of progress towards official Python3 support (thanks notafile)!! However, almost all the changes are under the hood (and some are quite major), so this is more a performance, bugfix and synapse internals release rather than adding many new APIs or features
As always, you can get it from https://github.com/matrix-org/synapse/releases/tag/v0.28.0 and thanks to everyone who tested the release candidates.
(Note: This release does not include state resolutions discussed in matrix live)