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LIFF v2.31.0 release, deprecation due to vulnerability, and planned usage restriction
LINE DevelopersSecurityDeadline Nov 24, 2026
After LIFF v2.31.0 was released with internal behavior changes, it was deprecated due to a security bug and faces planned usage limits.
Required action
If you are using LIFF v2.31.0, promptly update to LIFF v2.31.1 or later.
Changes
- LIFF v2.31.0 changed the internal behavior of the LIFF SDK without changing features.
- LIFF v2.31.0 was deprecated after a bug with potential security impact was confirmed.
- Usage restrictions for LIFF SDK versions v2.20.0 to v2.31.0 are planned around November 24, 2026.
Affected areas
@line/liff@2.31.0https://static.line-scdn.net/liff/edge/2/sdk.js
This summary is independently created by Release Radar and is not an official announcement from the vendor. Please read the official page for accurate details.
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