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Overall | Fixes and improvements (Jan 2026)

January 29th, 2026

Minor releases introduce new features and improvements. Check out what’s new!

API's

  • Delivery API | We’ve fixed a small inconsistency where the Delivery API would return XML instead of JSON when no instance with the provided instance key could be found or the request resulted in an error for whatever reason. Now 'format=json' and 'Accept: application/json' are both respected

Tweakwise App

  • Tweakwise App | Its no longer possible to delete Filter Template attributes that are still used by a Guided Selling. setup. Previously expanded our validations so we check also on attributes which are used in Guided Sellings but are not longer present on referenced Filter Templates.
  • Tweakwise App | When creating a new filter in the Filter Templates module, the 'hide filter if only one option is available' setting is now set to true by default. No more manual toggling for each attribute!
  • Tweakwise App | A critical issue in the Builder where component labels were incorrectly displayed was resolved, ensuring that merchandising configurations now properly reflect the intended labels at their designated positions. We also fixed a small bug where the Builder Click Distribution rates would not show on components.
  • Tweakwise App | We encountered a problem where a Builder Template could not be deleted in case it was used in an archived A/B Test. From now on, if the B/B Test is not active (archived or deleted), you can delete the template even though it is 'in use'. At that moment we will save the template name, remove the link, and delete the template.
  • Tweakwise App | As we will introduce a new way of Personalization soon, we already renamed the 'Personal Products' component in the Builder (if applicable in your plan) to a 'Just for you' component. The component itself is marked still as 'personal'.
  • Tweakwise App | We are now making sure suggestion configuration items are ordered properly even if data from the API is returned without these values.
  • Tweakwise App | The instance select screen after logging in would not scroll anymore.

Plugin Studio

  • Plugin Studio | While creating a new product tile in Plugin Studio, the initial modal would not close by clicking on the cross-button.
  • Plugin Studio | Added an option to configure hideActiveCategoryFilter in Starter settings page. When toggled on, the selected category will be hidden from the summary of selected filters.
  • Plugin Studio | The way text element values can be formatted has been changed. In order to set up precision, decimal separator or rounding the actual type of the attribute supplying a value in the Product Tile Editor needs to be Numeric. Text attributes (even though they have number-like value) would not offer these options anymore. This is to prevent e.g. certain item codes (like "16008.2500") from being automatically treated as numbers.

Tweakwise JS

  • Tweakwise JS | A secondary language option for internal UI language in both JS Implementation and Plugin Studio for multilingual teams has been added. All JS packages now take a new config value ui: { lang: 'code' } that takes precedence in interface localization.