Observed Signal · Apr 15, 2026 · Technical Release · Source: https://github.com/prebid/Prebid.js/releases.atom · Impact: 3/5 · Sentiment: Positive
Prebid.js 11.6.0 Released
Prebid.js published version 11.6.0, introducing new features, adapters, bug fixes and maintenance updates. Notable additions include a new core API method pbjs.getBidResponseByAdId, the initial release of an Agentic Audiences RTD module, and two new bidder adapters (AppMonstaMedia and AdSmartx). The release also contains bug fixes (TTL purge timer), build-system updates (Node 24, mocha bumped to 11.x), and several adapter-specific improvements such as instream support, single-request-per-auction behavior, and support for custom cohort handling.
Prebid.js is a widely used open-source header-bidding framework; this release adds API functionality, new adapters and RTD functionality that affect publishers, bidders and adapter implementers across the programmatic ecosystem.
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Key Takeaways & Evidence Grounding
- Prebid.js released version 11.6.0.
- Core: added new method pbjs.getBidResponseByAdId.
- Agentic Audiences RTD Module: initial release.
- New bidder adapters added: AppMonstaMedia and AdSmartx Bid Adapter.
- Build system and maintenance updates include migration to Node 24 and bumping mocha to 11.x; bug fix for scheduled TTL purge timer.
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Prebid.js 11.13.0 Released
Prebid.js 11.13.0, the open-source header-bidding library, was released on 2026-05-18. The release (tag 11.13.0) includes core type and build improvements, multiple maintenance updates to adapters and modules, and two new bid adapters: haloads and Anzu SSP. Core changes add TypeScript/type definition work (debugging module types, exporting more core types, making VideoMediaType properties optional), linting on imports, and further adpod cleanup. Maintenance notes include new or updated adapters (Movingup, Attekmi, Adelerate, CriteoId, pgamdirectBidAdapter, Selectmedia), RTD module tweaks, and documentation additions. Source archives (zip and tar.gz) were published with the tag on May 18, 2026.
Prebid.js 11.34.0 Released with Adswag and Geniee Adapters
This release of Prebid.js, version 11.34.0, includes core enhancements, new bid adapters, and maintenance updates. The core PRs focus on fixes to the build system, removing page-lifetime retainers of per-auction data, and a refinement to the user ID refresh logic. New features include the addition of the Adswag and Geniee Exchange (ex_geniee) bid adapters. The release also includes maintenance updates such as verifying the OpenRTB provenance carrier for the Encypher RTD provider, inheriting GVL IDs for short aliases across various bid adapters, updating the Utiq ID module to pass a category in the `ext` response, and adding a Ppcbuzz adapter. The release was authored by github-actions on September 11, 2026.
Prebid.js 11.8.0 Released
Prebid.js 11.8.0 was published as an official release on GitHub, introducing new features, bug fixes, and maintenance updates for the header-bidding toolkit. Notable additions include a new bidder integration (PGAM Direct), an initial release of the IntimateMerger analytics adapter, and a Bid Filter Module option to handle bidResponseFilter for in-banner video in multi-format units. The release also fixes an outstream video issue in the CriteoBidAdapter and contains multiple maintenance changes — e.g., CI artifact retry logic, use of window.crypto for UUID randomness, RTD/submodule updates (51Degrees, Permutive, wurfl), and various adapter compatibility and typing cleanups. Source archives (zip and tar.gz) were published with the release.
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