DO SPOUSE NEED NEW STAMPED VISA IF COMPANY NAME HAS CHANGED? (VISA IS VALID UNTIL NEXT YEAR WITH PREVIOUS COMPANY NAME)

My company name has changed as it was acquired by other company. My wife is tavalling to USA. Her H4 Visa was stamped with old company name but valid until next year. She is travelling to India. As she is on dependent visa, suggest if company name will matter? Will a name change letter will suffice or need new stamped Visa?

I have an approved I-797 with the new company name. She is travelling alone and I will be in USA.

THANKS

She needs to carry some information on the merger and acquisition so that point of entry officers know this. A new visa is not required