LinkedIn Marketing API version sunset calendar: every version and its end date
What changed
LinkedIn releases a new Marketing API version every month and supports each for at least one year. Its Migrations page lists the sunset date of every version. As of the October 2026 release (version 202610), the oldest active version is 202511 (sunset November 16, 2026) and the newest is 202610 (sunset October 15, 2027). There is no 202412 or 202512: the release notes skip December in 2024 and 2025. This entry collects all sunsets from January 2024 on; the effective date is not stated because it covers many dates, one per version.
What it means
Every monthly LinkedIn Marketing API version stops working on a fixed sunset date, about a year after release. Calls that send a sunset Linkedin-Version header fail, including Posts, Images, Videos and analytics calls.
Who is affected
Every scheduler, analytics and publishing tool that calls LinkedIn's versioned /rest APIs, which is every current LinkedIn posting integration.
What to do
Find the Linkedin-Version value your integration sends, look up its sunset date below, and move to a newer version well before that date. Plan one upgrade at least once a year.
What this means for you
Apps talk to LinkedIn using a "version" named after a month, like 202610 for October 2026. Each version only works for about a year. After its end date, the app's posts and reports to LinkedIn stop working until the app maker updates it. This page lists every version and the day it ends, so you can see when a tool you rely on has to update.
The details
How it works. Every call to https://api.linkedin.com/rest/ carries a Linkedin-Version: YYYYMM header. LinkedIn publishes a version each month and supports it for a minimum of one year. There is no default: an unversioned call is not upgraded to the latest version. A call with a sunset version is rejected; LinkedIn's error handling page describes HTTP 426 (version header is deprecated) for this case.
Active versions (as of the October 2026 release):
| Version | Sunset date |
|---|---|
| 202610 (latest) | October 15, 2027 |
| 202609 | September 15, 2027 |
| 202608 | August 17, 2027 |
| 202607 | July 15, 2027 |
| 202606 | June 15, 2027 |
| 202605 | May 15, 2027 |
| 202604 | April 15, 2027 |
| 202603 | March 16, 2027 |
| 202602 | February 15, 2027 |
| 202601 | January 15, 2027 |
| 202511 | November 16, 2026 |
There is no 202512 (no December 2025 release), so after 202511 the next one to expire is 202601.
Already sunset (from January 2024):
| Version | Sunset date |
|---|---|
| 202510 | October 15, 2026 |
| 202509 | September 15, 2026 |
| 202508 | August 17, 2026 |
| 202507 | July 15, 2026 |
| 202506 | June 15, 2026 |
| 202505 | May 15, 2026 |
| 202504 | April 15, 2026 |
| 202503 | March 16, 2026 |
| 202502 | February 16, 2026 |
| 202501 | January 15, 2026 |
| 202411 | November 17, 2025 |
| 202410 | October 15, 2025 |
| 202409 | September 15, 2025 |
| 202408 | August 18, 2025 |
| 202407 | July 22, 2025 |
| 202406 | June 16, 2025 |
| 202405 | May 15, 2025 |
| 202404 | April 15, 2025 |
| 202403 | March 17, 2025 |
| 202402 | February 18, 2025 |
| 202401 | January 22, 2025 |
| Unversioned Marketing APIs | December 16, 2024 |
| 202312 (release notes only, see below) | December 16, 2024 |
| 202311 | November 15, 2024 |
| 202310 | October 15, 2024 |
| 202309 | September 16, 2024 |
| 202308 | August 16, 2024 |
| 202307 | December 16, 2024 |
| 202306 | December 16, 2024 |
| 202305 | June 17, 2024 |
| 202304 | April 15, 2024 |
| 202303 | March 15, 2024 |
| 202302 | February 15, 2024 |
| 202210, 202211, 202212, 202301 | January 16, 2024 |
There is no 202412 (no December 2024 release).
Where the two LinkedIn pages disagree. Dates above come from the Migrations table. The monthly release notes give slightly different dates in a few places:
- 202305: the February to April 2024 release notes say May 15, 2024; the Migrations table says June 17, 2024.
- 202402: the January 2025 release notes say February 17, 2025; the Migrations table says February 18, 2025.
- 202312: listed in the October and November 2024 release notes (December 16, 2024) but missing from the Migrations table.
- 202401, 202407 and 202408: earlier release notes gave January 15, July 15 and August 15, 2025; later ones were corrected to match the Migrations table.
All of these dates are past, so they no longer change anything, but they show why it pays to migrate early rather than on the last day.
Related entries: LinkedIn Marketing API version 202511 sunsets November 16, 2026 and LinkedIn sunsets API versions 202306, 202307 and 202312 on December 16, 2024.
What to do next
- Business owners: If LinkedIn posting suddenly fails in a tool around one of these dates, ask the tool's support whether it updated its LinkedIn API version.
- Marketers and agencies: Note the next sunset date (November 16, 2026 for 202511) and check your scheduled LinkedIn posts publish on the days after it.
- Developers: Log the
Linkedin-Versionyou send, set a reminder two months before its sunset, and read the release notes between your version and the latest for breaking changes.
Primary sources
- LinkedIn Marketing API: Migrations (API Migration Status)
- LinkedIn Marketing API: Versioning
- LinkedIn Marketing API: Recent Marketing API Changes
- LinkedIn API: Error handling (426 Version Header is Deprecated)
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