Change8

Migrating to Prometheus v3.8.0-rc.1

Version v3.8.0-rc.1 introduces 1 breaking change. This guide details how to update your code.

Released: 11/24/2025

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Breaking Changes
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Migration Steps
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Affected Symbols

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Remote-write 2 receiving specification

Breaking Changes

Issue #1

The term "created timestamp" (CT) in the Remote-write 2 receiving specification has been renamed to "start timestamp" (ST). If you rely on the exact string "created timestamp" in your remote-write receiver configuration or logic, you must update it to "start timestamp".

Migration Steps

  1. 1
    If using Remote-write 2 receiving, update any configuration or code referencing "created timestamp" (CT) to use "start timestamp" (ST) instead.

Release Summary

This release updates the Remote-write 2 receiving specification, renaming the 'created timestamp' to 'start timestamp', and introduces support for the OAuth2 jwt-bearer grant-type.

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View the full release notes and all changes for Prometheus v3.8.0-rc.1.

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