Observed Signal · Jun 15, 2026 · Technical Release · Source: https://github.com/prebid/Prebid.js/releases.atom · Impact: 3/5 · Sentiment: Positive
Prebid.js 11.18.0 Released
Prebid.js published release 11.18.0 on GitHub on 2026-06-15. The release introduces a new bid adapter (Engerio), several core pull requests addressing code quality and analytics-consent handling, and a range of maintenance fixes across multiple bid and analytics adapters. Changes include enabling/disabling analytics on consent change, a Generic Analytics Adapter constructor fix, and numerous adapter-specific fixes and updates (e.g., Kargo, Alliance_Gravity, IntentIQ, Nexx360, ReVantage). Source archives (zip and tar.gz) and the release commit are available on the Prebid.js repository.
Prebid.js is a widely used open-source header-bidding library; this release introduces a new bid adapter and consent-related analytics changes and fixes that can affect publisher header-bidding implementations and adapter compatibility.
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Key Takeaways & Evidence Grounding
- Prebid.js version 11.18.0 was released on 2026-06-15.
- A new bid adapter, Engerio, was added in this release.
- Core changes include potential fixes for two code-quality findings and enabling/disabling analytics on consent changes.
- Multiple maintenance fixes and updates were applied to bid adapters and analytics adapters (examples: Kargo, Alliance_Gravity, IntentIQ, Nexx360, ReVantage).
- The release was published on GitHub (released by github-actions) with commit d912fea and source archives attached.
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Prebid.js 11.15.0 Released
Prebid.js v11.15.0 was released on 2026-06-04 via the prebid/Prebid.js GitHub repository. The release includes core PRs (consent/legal-basis improvements, bid desirability adjustment, and enforcement of accessRequestCredentials), new features and adapters (Vuukle ortbConverter rewrite with video/native and new endpoint; Hubvisor analytics adapter; new ferio adapter; Ogury instream video support; Acxiom realid userID module), multiple bug fixes (including Criteo Id System and hb_cache_host fixes), and a range of maintenance updates across many bid adapters, identity modules and build/test tooling. Source archives (zip and tar.gz) were published with the tag.
Prebid.js 11.21.0 Released
Prebid.js version 11.21.0 was published on June 25, 2026. The release bundles core fixes (renderer lookup guard, several linting hardenings, a bidResponseFilter fix, browserslist target update, and GitHub Actions updates to Node 24) and a set of maintenance updates to multiple bid adapters and analytics adapters (Brid, Allegro, Medianet, Mediago, Yahoo Ads, TTD, Onetag, ADBRO, Uniquest). The release entry was created by the github-actions app and references commit dfd6487; source archives (zip and tar.gz) are attached with timestamps of 2026-06-25T13:56:02Z. Changes include adapter-specific bug fixes, parameter/type enforcement, endpoint compression configuration, and metadata/exposure updates across adapters.
Prebid.js 11.9.0 Released
Prebid.js published release 11.9.0 on 2026-04-29 (tagged via GitHub Actions). The release adds new features including an Encypher RTD provider that surfaces C2PA content provenance signals, multiple new bid adapters (goadserver, mtc, tne_catalyst), and a pgamdirect analytics adapter. It also introduces an option in GPP control modules to further restrict activities. The update contains a core bug fix limiting mergeConfig notifications to updated topics and several maintenance changes: disabling user syncs in Firefox and WebKit-based Chrome, build-system migrations (native Gulp v5 sourcemap handling, webpack source-map changes), adapter improvements (GumGum, Vidazoo, Mile, Showheroes, Limelight), and dependency bumps. The release is relevant to publishers, header-bidding integrators and ad-tech implementers managing Prebid.js builds and privacy/consent flows.
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