optimizely/swift-sdk v5.2.0

Release 5.2.0

on GitHub

5.2.0

Dec 19th, 2025

New Features

• CMAB (Contextual Multi-Armed Bandit) Support: Added support for CMAB experiments with new configuration options and cache control (#599, #600, #601, #602, #603, #609, #610, #614)
• Add Holdouts Feature: Add Holdout support for feature experimentation. (#577, #577, #578, #587)
• Multi-Region Support for Data Hosting: Added SDK support for multi-region data hosting (#606)

API Changes

• Client Initialization: Custom CmabConfig struct can be injected when initializing client. (#610)
• Decide Async support: New decideAsync method added to support CMAB decision. (#602)
• New Decide Options: ignoreCmabCache, resetCmabCache, invalidateUserCmabCache for CMAB cache control. (#601)