https://releaseradar.jp/en/Official release notes and API changes from freee, kintone, SmartHR, LINE, and other Japanese SaaS products for AI builders.enhttps://releaseradar.jp/en/updates/line/e7323c9503e0/https://releaseradar.jp/en/updates/line/e7323c9503e0/Sun, 01 Nov 2026 15:00:00 GMTPricingLINE Official Accounts in Taiwan updated the pricing for subscription plans and additional messages sent beyond the free quota. https://developers.line.biz/ja/news/2026/11/02/price-revision-for-line-official-account-in-taiwan/https://releaseradar.jp/en/updates/line/0f67c5f88447/https://releaseradar.jp/en/updates/line/0f67c5f88447/Mon, 26 Oct 2026 15:00:00 GMTImprovedThe maximum character length allowed for URI properties in Messaging API URI actions has been expanded. ・Increased the maximum character limit for the uri and altUri.desktop properties from 1,000 to 10,000 ・altUri.desktop is valid only when a URI action is associated with a Flex Message https://developers.line.biz/ja/news/2026/10/27/uri-action/https://releaseradar.jp/en/updates/line/60160a927799/https://releaseradar.jp/en/updates/line/60160a927799/Mon, 19 Oct 2026 15:00:00 GMTSecurityDue to an XSS vulnerability in older LIFF SDK versions, LINE plans to restrict the use of affected versions in external browsers. ・A cross-site scripting vulnerability (CVE-2026-112148) was confirmed in LIFF v2.20.0 through v2.31.0. ・Opening an endpoint URL from a malicious URL in an external or LINE in-app browser may allow arbitrary JavaScript execution. ・Usage restrictions on LIFF v2.20.0 through v2.31.0 are scheduled around November 24, 2026, and may be moved up without notice. ・After the restriction, LINE Login and other LIFF features may stop working when opening affected apps in external browsers. ・Apps using the CDN edge path (https://static.line-scdn.net/liff/edge/2/sdk.js) are automatically updated to v2.31.2 and need no action. https://developers.line.biz/ja/news/2026/10/20/liff-sdk-issue/https://releaseradar.jp/en/updates/line/aa2ed09d783c/https://releaseradar.jp/en/updates/line/aa2ed09d783c/Wed, 14 Oct 2026 15:00:00 GMTNoticeThe LINE API Expert and LINE API Platform Evangelist programs in Japan will end when the current appointees finish their terms. ・No new appointments or renewals will be made in Japan from 2027 onward ・The LINE API Expert program in Taiwan and Thailand will continue from 2027 onward https://developers.line.biz/ja/news/2026/10/15/line-api-expert-program-in-japan-will-be-discontinued/https://releaseradar.jp/en/updates/line/d5dc65ed61eb/https://releaseradar.jp/en/updates/line/d5dc65ed61eb/Tue, 13 Oct 2026 15:00:00 GMTNoticeLY Corporation revised the LINE MINI App Policy on October 14, 2026 to clarify the conditions for delivering ads within LINE MINI Apps. ・Clarified that available ad network platforms are limited in principle to the LINE Yahoo Ad Network ・Organized the rules applying separately to ads using the LINE Yahoo Ad Network and to direct ads placed by operators ・Made formatting revisions to the policy https://developers.line.biz/ja/news/2026/10/14/line-mini-app-policy/https://releaseradar.jp/en/updates/line/74961e9d11da/https://releaseradar.jp/en/updates/line/74961e9d11da/Tue, 06 Oct 2026 15:00:00 GMTBreakingLIFF v2.31.2 changes how question marks in LIFF URL query parameter values are restored in the secondary redirect URL inside the LIFF browser. ・When opening a LIFF app in the LIFF browser, ? in LIFF URL query parameter values is preserved as ? instead of being replaced with & in the secondary redirect URL. ・Opening a LIFF app in an external browser is not affected by this change. ・When ? in a query parameter value is percent-encoded as %3F and accessed on iOS from outside the LINE app, the secondary redirect URL now receives ? instead of &. ・Users of the CDN edge path are automatically updated to v2.31.2, while users of a fixed CDN path or the @line/liff npm package must update the version manually. ・LIFF v2.20.0 through v2.31.0 are deprecated due to a bug with potential security implications. https://developers.line.biz/ja/news/2026/10/07/release-liff-2-31-2/https://releaseradar.jp/en/updates/line/6f3a53d910fe/https://releaseradar.jp/en/updates/line/6f3a53d910fe/Mon, 05 Oct 2026 15:00:00 GMTNoticeA network failure caused temporary errors and delays across Messaging API, LINE Login, LIFF, and the console, which have now been resolved. ・Messaging API experienced delayed or undelivered Webhook events and 500-series status code errors. ・Messages that were not actually sent despite a successful API request are excluded from usage fees and the sent message count. ・LINE Login, LIFF, LINE Mini App, and parts of the LINE Developers Console were intermittently unavailable, and some service messages were not sent properly. ・Implementing retry keys (X-Line-Retry-Key) allows requests to be retried safely without duplicate processing when 500-series errors or timeouts occur. https://developers.line.biz/ja/news/2026/10/06/all-products-outage/https://releaseradar.jp/en/updates/line/4dddcfe7a249/https://releaseradar.jp/en/updates/line/4dddcfe7a249/Wed, 30 Sep 2026 15:00:00 GMTPricingLINE MINI Apps using in-app purchases can now apply for Apple's program to reduce App Store payment fees. ・Applications can be submitted optionally per approved LINE MINI App when requesting verification review in the LINE Developers Console ・When the program is applied, App Store payment fees are reduced, decreasing the amount deducted from total sales ・In-app purchase processing does not need to differ based on program enrollment, and existing implementations require no changes https://developers.line.biz/ja/news/2026/10/01/apple-mini-apps-partner-program/https://releaseradar.jp/en/updates/line/cbf4354897a6/https://releaseradar.jp/en/updates/line/cbf4354897a6/Wed, 30 Sep 2026 15:00:00 GMTPricingPricing for additional messages sent beyond the free message quota on LINE Official Accounts in Japan was revised on October 1, 2026. https://developers.line.biz/ja/news/2026/10/01/additional-message-fees-revised-in-japan/https://releaseradar.jp/en/updates/line/5a9be1694217/https://releaseradar.jp/en/updates/line/5a9be1694217/Tue, 29 Sep 2026 15:00:00 GMTSecurityLIFF v2.31.1 fixes a potential security bug in the LIFF SDK, and versions v2.20.0 through v2.31.0 have been deprecated. ・Fixed an internal LIFF SDK issue that occurs when opening a LIFF app in an external browser from a URL with crafted query parameters ・Deprecated LIFF versions v2.20.0 through v2.31.0 due to potential security impact without changing LIFF app functionality ・Users of the CDN edge path are automatically updated to v2.31.1 and require no additional action https://developers.line.biz/ja/news/2026/09/30/release-liff-2-31-1/https://releaseradar.jp/en/updates/line/f1bb9ee93046/https://releaseradar.jp/en/updates/line/f1bb9ee93046/Tue, 29 Sep 2026 15:00:00 GMTPricingLINE Official Account plans to revise its pricing plans and additional message fees beyond the free quota in Taiwan on November 1, 2026. https://developers.line.biz/ja/news/2026/09/30/price-revision-for-line-official-account-in-taiwan/https://releaseradar.jp/en/updates/line/b14ba7896227/https://releaseradar.jp/en/updates/line/b14ba7896227/Sun, 27 Sep 2026 15:00:00 GMTDeprecationLINE Developers will discontinue the demo apps provided on its site for several products on September 30, 2026. ・Removed demo app pages and sections from the LINE Developers site on September 28, 2026 ・Includes seven LINE MINI App demos such as store reservation, mobile order, and membership card https://developers.line.biz/ja/news/2026/09/28/demo-apps-discontinued/https://releaseradar.jp/en/updates/line/ce8de44b6841/https://releaseradar.jp/en/updates/line/ce8de44b6841/Tue, 15 Sep 2026 15:00:00 GMTNoticeA network outage that caused 5xx status code errors across Messaging API endpoints has been fully resolved. ・Some requests failed to process normally between approximately 23:58 on September 15 and 03:43 on September 16, 2026 (UTC+9) ・All Messaging API endpoints and corporate LINE Notification Message sending endpoints were affected ・Some APIs support safe request retries without duplicate processing by specifying X-Line-Retry-Key https://developers.line.biz/ja/news/2026/09/16/messaging-api-outage/https://releaseradar.jp/en/updates/line/6129b469e168/https://releaseradar.jp/en/updates/line/6129b469e168/Mon, 14 Sep 2026 15:00:00 GMTBreakingLINE MINI App temporarily suspended switching the LINE Official Account on the channel consent screen due to a technical issue. ・Adding the prompt_bot_id query parameter to a LIFF URL or permanent link does not switch the LINE Official Account on the channel consent screen ・Switching the LINE Official Account on the permission request screen or the subwindow prompting users to add or unblock an account remains available ・Service resumption is scheduled for early November 2026 and may change without notice https://developers.line.biz/ja/news/2026/09/15/use-multiple-accounts/https://releaseradar.jp/en/updates/line/b47643a99c7d/https://releaseradar.jp/en/updates/line/b47643a99c7d/Sun, 13 Sep 2026 15:00:00 GMTNoticeLINE Mini App Policy is scheduled to be revised to clarify conditions and rules for delivering ads within LINE Mini Apps. ・The policy clarifies that the available ad network platform for LINE Mini Apps is limited in principle to the LY Corporation Ad Network. ・The policy organizes the respective rules for ads using the LY Corporation Ad Network and direct or self-published ads. ・The revision is scheduled for October 14, 2026, though the content and date may change. https://developers.line.biz/ja/news/2026/09/14/line-mini-app-policy/https://releaseradar.jp/en/updates/line/da1a3615ab8a/https://releaseradar.jp/en/updates/line/da1a3615ab8a/Wed, 09 Sep 2026 15:00:00 GMTImprovedStarting September 10, 2026, AI sets categories and generates descriptions for verified LINE MINI Apps in Japan's popular ranking. ・AI sets the category and generates a description of up to 21 Japanese characters or 42 half-width alphanumeric characters from the channel description, applying them sequentially ・LINE MINI Apps that already have a description set by September 9, 2026 are excluded from this AI generation ・Only verified MINI Apps appear in Today's Popular Ranking, and no additional setup is needed other than entering a concrete description in the channel description field https://developers.line.biz/ja/news/2026/09/10/line-mini-app-description/https://releaseradar.jp/en/updates/line/c4695f36a4e2/https://releaseradar.jp/en/updates/line/c4695f36a4e2/Tue, 01 Sep 2026 15:00:00 GMTNewThe LINE Mini App add-friend option now lets developers switch among allowlisted LINE Official Accounts depending on the user. ・Allows displaying an appropriate LINE Official Account from a pre-registered allowlist as the add-friend target based on the user's situation ・Requires the LINE Mini App channel's service region to be Japan in addition to standard add-friend option requirements ・A September 2, 2026 correction removed the erroneous requirement that the LINE Mini App must be a verified mini app ・Using the feature requires configuration in the LINE Developers Console and implementation in the LINE Mini App to switch accounts https://developers.line.biz/ja/news/2026/09/02/add-friend-option/https://releaseradar.jp/en/updates/line/4b54d9b31b60/https://releaseradar.jp/en/updates/line/4b54d9b31b60/Mon, 31 Aug 2026 15:00:00 GMTPricingLINE Official Account plans to revise the fee for additional messages sent beyond the free quota in Japan on October 1, 2026. https://developers.line.biz/ja/news/2026/09/01/price-revision-of-additional-message-fees-in-japan/https://releaseradar.jp/en/updates/line/152ef74dcd1a/https://releaseradar.jp/en/updates/line/152ef74dcd1a/Sun, 30 Aug 2026 15:00:00 GMTBreakingFrom LIFF v2.31.2, the LIFF browser is scheduled to keep "?" in query parameter values instead of replacing it with "&" upon redirect. ・The target version was changed from LIFF v2.31.1 or later to LIFF v2.31.2 or later, scheduled for release on October 7, 2026 ・The change applies only when opening a LIFF app in the LIFF browser, with no change in behavior in external browsers ・When accessing a LIFF URL containing percent-encoded "%3F" from outside the LINE app on iOS, the secondary redirect URL value becomes "?" instead of "&" ・Behavior remains unchanged when accessing a LIFF URL containing "%3F" from the LINE app on iOS or from an Android device https://developers.line.biz/ja/news/2026/08/31/liff-query-parameter-change/https://releaseradar.jp/en/updates/line/3be13065df87/https://releaseradar.jp/en/updates/line/3be13065df87/Sun, 30 Aug 2026 15:00:00 GMTSecurityAfter LIFF v2.31.0 was released with internal behavior changes, it was deprecated due to a security bug and faces planned usage limits. ・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. https://developers.line.biz/ja/news/2026/08/31/release-liff-2-31-0/https://releaseradar.jp/en/updates/line/08c1b6f0bf52/https://releaseradar.jp/en/updates/line/08c1b6f0bf52/Tue, 25 Aug 2026 15:00:00 GMTDeprecationFollowing the planned termination of LINE VOOM, LINE Social Plugins has discontinued the function that displays a home icon on its buttons. ・The home icon option can no longer be selected when creating an Add Friend button, and existing buttons no longer display the icon ・When the Like and Add Friend buttons are shown together, users who already added the LINE Official Account now always see the Add Friend button instead of the home icon ・Descriptions related to LINE VOOM were removed from the LINE Social Plugins usage guidelines https://developers.line.biz/ja/news/2026/08/26/line-social-plugins-line-voom/https://releaseradar.jp/en/updates/line/f6f90d6f1c6f/https://releaseradar.jp/en/updates/line/f6f90d6f1c6f/Tue, 25 Aug 2026 15:00:00 GMTImprovedVerified LINE Mini Apps in Japan with simplified channel consent enabled now open on first access without consent or loading screens. ・Updated the authorization flow from August 26, 2026 for verified LINE Mini Apps in Japan with simplified channel consent enabled ・Removed the simplified consent screen and loading screen previously shown on first access https://developers.line.biz/ja/news/2026/08/26/line-mini-app-launch-flow/https://releaseradar.jp/en/updates/line/707b90e84176/https://releaseradar.jp/en/updates/line/707b90e84176/Sun, 16 Aug 2026 15:00:00 GMTNoticeLINE Developers issued a reminder to specify exact documented endpoints without trailing slashes when sending requests to the Messaging API. ・https://api.line.me/v2/bot/message/push is given as a valid example, whereas appending an unnecessary trailing slash to the path is invalid ・Implementing with an official Messaging API SDK allows requests to use the valid endpoint without manually managing URLs or paths https://developers.line.biz/ja/news/2026/08/17/alert-about-specifying-endpoints-when-sending-requests/https://releaseradar.jp/en/updates/line/ecdea045fc23/https://releaseradar.jp/en/updates/line/ecdea045fc23/Sun, 16 Aug 2026 15:00:00 GMTSecurityLIFF v2.30.0 added arguments to three friendship and permission methods, but was later deprecated due to a security issue with usage restrictions planned. ・LIFF v2.30.0 added argument support to liff.permission.requestAll(), liff.getFriendship(), and liff.requestFriendship() when multiple accounts are enabled on a LINE MINI App channel. ・LIFF v2.30.0 was later deprecated due to a bug with potential security impact. ・Usage restrictions on older LIFF SDK versions from v2.20.0 to v2.31.0 are planned around November 24, 2026. ・Apps using the CDN edge path are updated automatically, while npm or yarn users update the @line/liff package. https://developers.line.biz/ja/news/2026/08/17/release-liff-2-30-0/https://releaseradar.jp/en/updates/line/9f793fafde94/https://releaseradar.jp/en/updates/line/9f793fafde94/Tue, 11 Aug 2026 15:00:00 GMTNewWhen a user edits a text message in a group chat that includes a LINE Official Account, the LINE Platform now sends a webhook event. ・When a user edits a sent text message in a group chat with a LINE Official Account, a messageEdited event is sent to the bot server specified in the Webhook URL of the LINE Developers Console. ・The edit event is sent only for group chats, and not for one-on-one chats or multi-person chats. ・The edit event includes a replyToken, allowing the LINE Official Account to reply to the edited message. https://developers.line.biz/ja/news/2026/08/12/messaging-api-edit-event/https://releaseradar.jp/en/updates/line/29cbc94f8786/https://releaseradar.jp/en/updates/line/29cbc94f8786/Mon, 03 Aug 2026 15:00:00 GMTNoticeA server outage in the Messaging API caused some requests to fail, and the service has now fully recovered. ・A server outage occurred on August 4, 2026 from around 16:11 to around 16:41 (UTC+9). ・The outage affected getting profile information and marking messages from users as read (corporate option). ・Some requests could not be processed normally and returned 500-series status code errors. https://developers.line.biz/ja/news/2026/08/04/messaging-api-outage/https://releaseradar.jp/en/updates/line/475f4c4b1a55/https://releaseradar.jp/en/updates/line/475f4c4b1a55/Thu, 30 Jul 2026 15:00:00 GMTSecurityLIFF v2.29.2 was released with internal SDK behavior changes, then deprecated due to a security issue with usage restrictions planned. ・LIFF v2.29.2 changed internal LIFF SDK behavior without functional changes. ・LIFF v2.29.2 was deprecated after a bug with potential security impact was confirmed. ・Usage restrictions for LIFF SDK versions v2.20.0 through v2.31.0 are planned around November 24, 2026. https://developers.line.biz/ja/news/2026/07/31/release-liff-2-29-2/https://releaseradar.jp/en/updates/line/af47a89cb07a/https://releaseradar.jp/en/updates/line/af47a89cb07a/Mon, 27 Jul 2026 15:00:00 GMTNoticeA server outage that caused errors and delays across multiple LINE Platform services has been fully resolved. ・A server outage occurred on July 28, 2026 from around 16:46 to 21:11 UTC+9 ・Messaging API and LINE Notification Messages experienced Webhook delivery delays or failures and 5xx errors ・Adding friends and unblocking occasionally failed in LINE Login, LIFF, and LINE MINI App ・Service message delivery was occasionally delayed or failed in LIFF and LINE MINI App ・Channel settings could occasionally not be changed in the LINE Developers Console https://developers.line.biz/ja/news/2026/07/28/messaging-api-outage/https://releaseradar.jp/en/updates/line/c4557d16538b/https://releaseradar.jp/en/updates/line/c4557d16538b/Sun, 26 Jul 2026 15:00:00 GMTNoticeLY Corporation revised the LINE In-App Purchase Terms of Use for LINE MINI App providers to clarify party responsibilities and authority. ・Clarified provisions based on the responsibilities and authority of each party ・Made formatting revisions https://developers.line.biz/ja/news/2026/07/27/line-mini-app-iap/https://releaseradar.jp/en/updates/line/7e1f34f38162/https://releaseradar.jp/en/updates/line/7e1f34f38162/Thu, 16 Jul 2026 15:00:00 GMTNoticeThe LINE In-App Purchase Terms of Use for LINE MINI App providers is scheduled to be revised on July 27, 2026. ・Clarifies provisions based on the responsibilities and authorities of each party ・Makes formal revisions to the text https://developers.line.biz/ja/news/2026/07/17/line-mini-app-iap/https://releaseradar.jp/en/updates/line/84454e0fc4d0/https://releaseradar.jp/en/updates/line/84454e0fc4d0/Tue, 30 Jun 2026 15:00:00 GMTNewStatistics such as impression and click counts can now be retrieved via the API for rich menus created with the Messaging API. ・Added an endpoint to get total statistics for rich menus. ・Added an endpoint to get daily statistics for rich menus. ・Statistics for rich menus created with the Messaging API are not displayed in LINE Official Account Manager. ・Statistics for rich menus created in LINE Official Account Manager cannot be retrieved via the Messaging API. https://developers.line.biz/ja/news/2026/07/01/rich-menu-insight/https://releaseradar.jp/en/updates/line/d6fddf682870/https://releaseradar.jp/en/updates/line/d6fddf682870/Tue, 30 Jun 2026 15:00:00 GMTPricingLINE MINI App began applying fees to in-app purchases starting with July 2026 usage and revised the corresponding terms of use. ・Applies the prescribed fee at the rate communicated upon application starting with July 2026 usage ・Revised the LINE In-App Purchase Terms of Use for LINE MINI App providers on July 1, 2026 ・Clarified fee calculation, settlement, and payment methods in the terms and made formatting revisions https://developers.line.biz/ja/news/2026/07/01/iap-service-fees/https://releaseradar.jp/en/updates/line/f5dbb9b36ca0/https://releaseradar.jp/en/updates/line/f5dbb9b36ca0/Sun, 28 Jun 2026 15:00:00 GMTSecurityLIFF v2.29.1 was released with internal behavior changes, then deprecated due to a security issue with usage restrictions planned. ・LIFF v2.29.1 changed internal LIFF SDK behavior without changing features. ・LIFF v2.29.1 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. ・CDN edge path users were updated to v2.29.1 automatically, while npm package users updated by installing @line/liff@2.29.1. https://developers.line.biz/ja/news/2026/06/29/release-liff-2-29-1/https://releaseradar.jp/en/updates/line/9ef17e48b1ed/https://releaseradar.jp/en/updates/line/9ef17e48b1ed/Tue, 23 Jun 2026 15:00:00 GMTNewUsers can now delete their developer accounts from the profile screen in the LINE Developers Console. ・Deleted developer accounts cannot be restored and can no longer log in to the LINE Developers Console. ・Deleting a developer account does not delete the linked Business ID or LINE account. ・Deletion requires another developer account with Admin privileges on all providers and channels where the user is an Admin. https://developers.line.biz/ja/news/2026/06/24/delete-developer-account/https://releaseradar.jp/en/updates/line/0d5c754b3708/https://releaseradar.jp/en/updates/line/0d5c754b3708/Tue, 09 Jun 2026 15:00:00 GMTNewVerified LINE MINI App channels in Japan can now connect to a Business Manager organization to link with its LINE Official Accounts. ・Only LINE Official Accounts in the same organization can be linked at this time ・Requires a verified MINI App where both the channel region and organization region are Japan ・Requires the provider and service owner of the production LINE MINI App to match ・Connection to an organization can be requested from the Business Manager connection tab https://developers.line.biz/ja/news/2026/06/10/business-manager-link/https://releaseradar.jp/en/updates/line/0d5606cc394b/https://releaseradar.jp/en/updates/line/0d5606cc394b/Thu, 04 Jun 2026 15:00:00 GMTPricingThe fee-free period for LINE Mini App in-app purchases ends at the end of June 2026, and standard fees apply to payments from July 1, 2026. ・Standard fee rates communicated at application apply to payments from July 1, 2026 onward ・The LINE In-App Purchase Terms of Use for LINE Mini App Providers is scheduled for revision on July 1, 2026, subject to change ・The terms revision clarifies fee calculation, settlement, and payment methods, along with formatting adjustments https://developers.line.biz/ja/news/2026/06/05/iap-service-fees/https://releaseradar.jp/en/updates/line/47366a08e831/https://releaseradar.jp/en/updates/line/47366a08e831/Mon, 25 May 2026 15:00:00 GMTBreakingOn May 26, 2026, the rate limit for the Messaging API endpoint to retrieve the list of rich menus was reduced. ・The rate limit for the target endpoint changed from 2,000 requests/second to 10 requests/second ・Rate limits for all other endpoints remain unchanged https://developers.line.biz/ja/news/2026/05/26/messaging-api-rate-limit/https://releaseradar.jp/en/updates/line/0939546cc490/https://releaseradar.jp/en/updates/line/0939546cc490/Mon, 18 May 2026 15:00:00 GMTImprovedIn LINE 26.7.0 and later, the appearance and behavior of header action and minimize buttons have changed in the LIFF browser. ・In LINE 26.7.0 and later, the action button icon changed from a multi-tab view icon to a vertical three-dot icon. ・Tapping the action button now displays a dropdown menu instead of the multi-tab view. ・The dropdown menu includes items such as reload and share, with displayed items varying by app type and verification status. ・For verified Mini Apps, the minimize button in the header changed to a close button, and the minimize button moved into the dropdown menu. https://developers.line.biz/ja/news/2026/05/19/liff-browser/https://releaseradar.jp/en/updates/line/c2997f65ee76/https://releaseradar.jp/en/updates/line/c2997f65ee76/Tue, 12 May 2026 15:00:00 GMTSecurityOlder LIFF SDK versions face planned usage restrictions due to vulnerabilities, requiring an update to v2.31.1 or later. ・Usage restrictions for LIFF SDK v2.20.0 to v2.31.0 are scheduled around November 24, 2026. ・LIFF v2.29.0 is deprecated due to a defect that may have security implications. ・LIFF v2.29.0 changed internal behavior without altering functionality. https://developers.line.biz/ja/news/2026/05/13/release-liff-2-29-0/https://releaseradar.jp/en/updates/line/1255c37c93ee/https://releaseradar.jp/en/updates/line/1255c37c93ee/Sun, 10 May 2026 15:00:00 GMTImprovedYou can now run LIFF APIs and get profiles properly when opening apps from LIFF browser by updating Android LINE to 26.6.2 or later. ・Profile retrieval and LIFF API calls failed on Android LINE 26.6.0 and 26.6.1 when launching apps from LIFF browser via intents or app links ・The issue occurred because the LIFF SDK referenced an invalid access token ・Navigating with location.href when launching the same or another LIFF or LINE mini app may avoid the issue ・Calling liff.login() after liff.logout() when detecting error code invalid_request may avoid the issue https://developers.line.biz/ja/news/2026/05/11/liff-outage/https://releaseradar.jp/en/updates/line/92aa1065f579/https://releaseradar.jp/en/updates/line/92aa1065f579/Wed, 06 May 2026 15:00:00 GMTBreakingThe rate limit for the Messaging API endpoint that gets rich menu lists is scheduled to change on May 26, 2026. ・The rate limit for "Get rich menu list" changes from 2,000 requests per second to 10 requests per second. ・Rate limits for endpoints other than the above do not change. ・The contents and date of the change may change without notice. https://developers.line.biz/ja/news/2026/05/07/messaging-api-rate-limit/https://releaseradar.jp/en/updates/line/51063e089ef0/https://releaseradar.jp/en/updates/line/51063e089ef0/Mon, 27 Apr 2026 15:00:00 GMTNoticeAn outage causing LIFF SDK loading and app initialization failures in LIFF and LINE MINI App has been fully resolved. ・LIFF SDK loading failed in some cases between around 19:46 and 20:05 (UTC+9) on April 27, 2026 for apps using the CDN path ・Initialization with liff.init() failed in some cases between around 19:46 (UTC+9) on April 27, 2026 and 0:12 (UTC+9) on April 28, 2026, preventing normal app use ・The cause was a server failure https://developers.line.biz/ja/news/2026/04/28/liff-outage/https://releaseradar.jp/en/updates/line/482da40c73a8/https://releaseradar.jp/en/updates/line/482da40c73a8/Thu, 16 Apr 2026 15:00:00 GMTNoticeMessaging API rich menu endpoints are now available and operating normally again. ・A server failure occurred from around 11:37 to 11:40 on April 17, 2026 (UTC+9). ・Endpoints in the rich menu, user-specific rich menu, and rich menu alias sections were affected. ・Some requests could not be processed normally and resulted in status code 500-level errors. https://developers.line.biz/ja/news/2026/04/17/messaging-api-outage/https://releaseradar.jp/en/updates/line/b3e5d6e5319f/https://releaseradar.jp/en/updates/line/b3e5d6e5319f/Tue, 07 Apr 2026 15:00:00 GMTImprovedYou can now access Markdown source files on GitHub for select documents and references on the LINE Developers site. ・On pages that support Markdown display, you can open the file on GitHub using the "GitHubで表示" button near the page title. https://developers.line.biz/ja/news/2026/04/08/line-developers-docs-source/https://releaseradar.jp/en/updates/line/15413d6e4a5d/https://releaseradar.jp/en/updates/line/15413d6e4a5d/Mon, 30 Mar 2026 15:00:00 GMTDeprecationDue to the termination of LINE Ads in Japan, the LINE Ads API is scheduled to become unavailable for use in Japan. ・The scheduled end date in Japan is late March 2027, with the exact date to be announced once decided ・LINE Ads API remains available in Taiwan and Thailand https://developers.line.biz/ja/news/2026/03/31/line-ads-api/https://releaseradar.jp/en/updates/line/a53193248ccd/https://releaseradar.jp/en/updates/line/a53193248ccd/Sun, 29 Mar 2026 15:00:00 GMTDeprecationAhead of the site closure on March 31, 2026, you can now access demo apps and scenarios on the LINE Developers site. ・The LINE API Use Case site will close on March 31, 2026 ・You can now access LINE platform practical scenarios and demo apps on the LINE Developers site ・You can now access LINE Mini App demos on the LINE Developers site ・You can now view case studies for LINE platform, Messaging API, and LINE Mini App on the LINE Developers site https://developers.line.biz/ja/news/2026/03/30/line-api-use-case-closing/https://releaseradar.jp/en/updates/line/9d63492296f8/https://releaseradar.jp/en/updates/line/9d63492296f8/Mon, 23 Mar 2026 15:00:00 GMTSecurityWhile you can now prompt users to add friends in LIFF v2.28.0, older SDK versions will be restricted due to a security vulnerability. ・Usage restrictions for older LIFF SDK versions (v2.20.0 to v2.31.0) are scheduled for around November 24, 2026. ・LIFF v2.28.0 has been deprecated due to a bug with potential security impacts. ・You can now use liff.requestFriendship() to display a subwindow prompting users to add the LINE Official Account as a friend or unblock it. https://developers.line.biz/ja/news/2026/03/24/release-liff-2-28-0/https://releaseradar.jp/en/updates/line/55fa257e4872/https://releaseradar.jp/en/updates/line/55fa257e4872/Sun, 22 Mar 2026 15:00:00 GMTNoticeA server issue that invalidated invitation URLs sent to developers on LINE Developers Console has been resolved. ・A server outage occurred from around March 20, 2026, 11:28 to March 23, 2026, 11:37 (UTC+9). ・Invitation emails sent during the incident will not be resent. ・If an invitation URL shows that it has expired, you must ask an authorized member to send a new invitation. https://developers.line.biz/ja/news/2026/03/23/console-outage/https://releaseradar.jp/en/updates/line/e1b937ce495a/https://releaseradar.jp/en/updates/line/e1b937ce495a/Wed, 18 Mar 2026 15:00:00 GMTNoticeYou can now use LINE platform APIs and services normally following the resolution of a server outage. ・A server outage occurred from around 12:15 to 12:16 UTC+9 on March 19, 2026 ・Messaging API webhook event delivery was delayed or returned 5xx errors in some cases ・LINE Login, LIFF, and LINE Mini App could not be used normally and returned 5xx errors in some cases ・Messages not sent despite successful API requests due to the outage are not counted toward LINE Official Account fees or sent message counts https://developers.line.biz/ja/news/2026/03/19/all-products-outage/https://releaseradar.jp/en/updates/line/7fa3684b0110/https://releaseradar.jp/en/updates/line/7fa3684b0110/Tue, 10 Mar 2026 15:00:00 GMTNewYou can now publish uncertified LINE Mini Apps providing services in Taiwan and Thailand. ・Users eligible under the policy can create LINE Mini App channels for Taiwan and Thailand ・Verification review for Taiwan or Thailand can only be requested by channels under a verified provider https://developers.line.biz/ja/news/2026/03/11/line-mini-app/