Pubstack

Prebid.js 11.4.0 Released

Prebid.js published release 11.4.0 containing new features, bug fixes and maintenance updates for the open-source header-bidding library. Key additions include VAST tracker event-injection support, build-option support for non-Webpack bundlers, a new minTargetedBidCacheTTL setting to prevent winning bids from expiring, and a new LOGLY bidder adapter. The release also fixes a PBS Adapter bug that prevented sending an empty bidder array in eidpermissions and includes multiple adapter-specific maintenance changes (consent handling fixes, endpoint corrections, floor price support), dependency bumps, and new/updated adapters such as adsmovil and PubstackAdapter improvements.

UK Publishers Face Revenue Drop Amid Rising Ad Volumes

Pubstack's State of Programmatic UK 2025 shows a market where higher impression volumes did not protect publisher revenue. In 2025 UK programmatic impressions rose 10.51% year-on-year while programmatic revenue fell 2.29% year-on-year, driven by a 10.54% drop in eCPM. The revenue decline was concentrated in Q4, which saw a 13.55% year-on-year reset. The report also documents a demand-mix shift: Google’s share fell by 3.64 percentage points while Prebid’s share increased by 3.79pp year-on-year. Pubstack says publishers sustained delivery through volume growth but faced pricing pressure that eroded monetisation; the report is presented as a benchmarking tool for UK premium publishers to diagnose leaks in pricing, quality, demand mix or auction efficiency.

Orange Advertising Boosts Revenue with Pubstack ONE Partnership

Pubstack today announced a major partnership with Orange Advertising, selecting Pubstack ONE to power its monetisation infrastructure across Web, In-Stream video, and In-App environments. The decision followed a competitive review, including a head-to-head test in August 2025 against a leading competitor, during which Pubstack delivered a two-digit uplift in RPM. Orange Advertising, which reaches over 30 million monthly unique visitors and is a telco-owned ad sales house, manages Orange’s digital properties and partner apps such as Bonjour RATP, Mappy, ViaMichelin, and Moovit. Pubstack will deploy its In-Stream header bidding solution and In-App capabilities, including server-side Prebid for iOS and Android, to create a unified, automated monetisation framework across all environments. Pubstack ONE provides full no-code control to design, automate, and optimise the entire ad stack, reducing engineering bottlenecks and increasing agility for multi-environment publishers.