Announcement
- 09/10/2017 - Server Maintenance
- 07/15/2017 - Server Maintenance
- 06/26/2017 - ChatWork is back online
- 05/27/2017 - Server Maintenance
- 03/02/2017 - ChatWork is back online
- 03/04/2017 - Server Maintenance
- 02/26/2017 - Support for older versions of mobile app ended
- 02/25/2017 - Server Maintenance
- 02/18/2017 - Server Maintenance
- 01/26/2017 - Chatwork API Update Notice
- 01/10/2017 - ChatWork is back online
- 12/28/2016 - Notice of Long-hour Maintenance Due to Service Reinforcement
- 11/26/2016 - Server Maintenance
- 11/21/2016 - ChatWork is back online
- 11/19/2016 - Server Maintenance
- 11/01/2016 - ChatWork is back online
- 10/29/2016 - Server Maintenance
- 10/22/2016 - Server Maintenance
- 10/08/2016 - Server Maintenance
- 10/01/2016 - Server Maintenance
- 09/17/2016 - Server Maintenance
- 09/03/2016 - Server Maintenance
- 07/16/2016 - Server Maintenance
- 07/02/2016 - Server Maintenance
- 05/28/2016 - Server Maintenance
- 05/14/2016 - Server Maintenance
- 05/07/2016 - Server Maintenance
- 03/19/2016 - Server Maintenance
- 03/12/2016 - Server Maintenance
- 02/20/2016 - Server Maintenance