Thank you for using RuffRuff Selling Periods. We've improved the product filtering feature and would like to share the details.
What's Improved
Filtering products by collection - used, for example, when selecting target products for a rule - now supports collections created under Shopify's new collection model (introduced in July 2026).
Previously, using a collection built on the new model - for example, one that includes only a subset of a product's variants - could cause the product list to display incorrectly. With this improvement, filtering and display now work correctly.
What You Need to Know
● This improvement is applied automatically; no additional configuration is required.
● When filtering by a collection that includes only some of a product's variants, only the variants included in that collection will appear in the list.
Thank you for continuing to use RuffRuff Selling Periods.
