Apple has brought out the RC developer betas of iOS 26.6 and others for testing, in what could be the last for this round. While the focus is on the 27-generation, it's current 26-gen OSes are still getting updates to version 26.6. The RC developer betas landed after the fifth, which came out on July 13. The first iOS 26.6 beta build included a new feature for Contacts that notifies users if they reach the maximum of 20,000 blocked listings. The more risk-averse users should wait for public beta builds, which are more battle-hardened and less prone to errors.