Messaging API release notes

LINE DevelopersOct 27, 2026Improved
Increased maximum character limit for URIs in Messaging API URI actions
The maximum character length allowed for URI properties in Messaging API URI actions has been expanded.
LINE DevelopersSep 28, 2026Deprecation
End of Demo Apps for Messaging API, LINE Login, and LINE MINI App
LINE Developers will discontinue the demo apps provided on its site for several products on September 30, 2026.
LINE DevelopersSep 16, 2026Notice
Recovery from network outage affecting Messaging API
A network outage that caused 5xx status code errors across Messaging API endpoints has been fully resolved.
LINE DevelopersAug 17, 2026Notice
Reminder to specify exact endpoints without trailing slashes for Messaging API requests
LINE Developers issued a reminder to specify exact documented endpoints without trailing slashes when sending requests to the Messaging API.
LINE DevelopersAug 12, 2026New
Messaging API adds messageEdited webhook event for group chats
When a user edits a text message in a group chat that includes a LINE Official Account, the LINE Platform now sends a webhook event.
LINE DevelopersAug 4, 2026Notice
Messaging API server outage resolved
A server outage in the Messaging API caused some requests to fail, and the service has now fully recovered.
LINE DevelopersJul 28, 2026Notice
Resolved server outage across LINE Platform services
A server outage that caused errors and delays across multiple LINE Platform services has been fully resolved.
LINE DevelopersJul 1, 2026New
Added endpoints to get statistics for rich menus created with Messaging API
Statistics such as impression and click counts can now be retrieved via the API for rich menus created with the Messaging API.
LINE DevelopersMay 26, 2026Breaking
Rate limit changed for Messaging API endpoint that gets rich menu list
On May 26, 2026, the rate limit for the Messaging API endpoint to retrieve the list of rich menus was reduced.
LINE DevelopersMay 7, 2026Breaking
Rate limit for Messaging API "Get rich menu list" endpoint is planned to change
The rate limit for the Messaging API endpoint that gets rich menu lists is scheduled to change on May 26, 2026.
LINE DevelopersApr 17, 2026Notice
Messaging API rich menu endpoints recover from server outage
Messaging API rich menu endpoints are now available and operating normally again.
LINE DevelopersFeb 4, 2026Notice
Resolution of failure affecting Messaging API content retrieval
An issue where some content retrieval requests in the Messaging API failed has been resolved.
LINE DevelopersJan 21, 2026New
Web traffic audiences using measurement tags are now available in Messaging API
You can now retrieve information for web traffic audiences created with measurement tags through the Messaging API.