H1B stamping question after employer change

My initial H1B started in oct 2023. I visited India in April 2024 and got my visa stamped, valid until Oct 2026. In May 2025, I changed my employer and got a new I-797.

I’m planning to visit India again in April 2026. Since my current visa stamp (from my old employer) is still valid, do I need to get a new stamp for the new employer, or can I re-enter the U.S. with the old visa stamp + new I-797?

Would really appreciate advice from others who’ve faced this!