Announcement
- 06/01/2026 - Server Maintenance (Date: 06/13)
- 23/03/2026 - Notice: End of Support for iOS 16 (Including iPadOS)
- Q&A on Security Measures to Prevent Unauthorized Login to Chatwork
- Q&A about impersonation accounts
- [Important] Notice of Specification Changes Due to Security Enhancements
- 01/05/2026 - Server Maintenance (Date: 01/18)
- 11/24/2025 - Notice of Revisions to Chatwork’s “Privacy Policy” and “Terms of Use” (Effective Date: December 11, 2025 – JST)
- 11/13/2025 - [Important]Notice Concerning Chatwork Live System Migration
- 07/02/2025 - Server Maintenance (Date: 07/05)
- 05/30/2025 – Scheduled Message Sending Now Available on Mobile Apps (iOS/Android)!
- 05/29/2025 - Server Maintenance (Date: 06/07)
- 05/15/2025 - Notice of end of support for desktop app on macOS 11 or lower
- 05/01/2025 - Important Notice
- 04/30/2025 - Server Maintenance (Date: 05/01)
- 04/27/2025 - Chatwork is back online
- 04/03/2025 - Notice Regarding Changes to Chatwork API Request Specifications
- 02/27/2025 - Server Maintenance (Date: 08/03)
- 01/16/2025 - Chatwork (browser version) will no longer be supported on Safari 15.5 and earlier versions
- 11/27/2024 - Server Maintenance (Date: 12/7)
- 11/26/2024 -Notice of end of support for TLS 1.0 and TLS 1.1 in Chatwork API
- 11/22/2024 -Notice: Revision of Chatwork’s “Terms of Use”（Effective Date：December 9, 2024(Mon) - JST）
- 11/11/2024 -Enables a pre-set message sending! “Scheduled Send” feature will be provided sequentially.
- 11/11/2024 -You can now easily read messages mentioned to you by the newly added “Mentions” function!
- 11/11/2024 -[For Paid-Plan only] New Features: “Scheduled Send” & “Mentions” are Released!
- 10/23/2024 - Server Maintenance (Date: 10/26)
- 10/01/2024 - Server Maintenance (Date: 10/12)
- 09/24/2024 - Request for Security Measures to Prevent Unauthorized Login to Chatwork
- 09/17/2024 - Server Maintenance (Date: 09/21)
- 09/05/2024 - Notice: End of Support for iOS 15 (Including iPadOS) and Android 9
- 08/29/2024 - Changes to the Free Plan Service