Timesketch 2016.7 released
Timesketch is an open source collaborative timeline analysis tool (source code) for for digital forensics and incident response. Using sketches multiple collaborators can easily organize and concurrently analyze timelines.
A new version of the tool was recently released (2016.7 codename Interstellar) and it has lots of new features, tweaks and fixes.
Use this link to learn more about it.