Create separate safe spaces for your senior cat and the new kitten.
Exchange bedding and toys between the cats to familiarize their scents.
Start with short, supervised interactions between the senior cat and kitten.
Reward good behavior and calm interactions with treats and praise.
Gradually increase the duration of supervised meetings over time.
Observe for signs of stress in either cat during the introduction process.
Allow each cat to have their own space and avoid forcing interactions.