You didn't change much vs You didn't changed much

Some examples from the web:

• You said you didn't change it much.
• She didn't change much this week.
• Although it didn't change much throughout the whole decade.
• When I was talking with Ange and Brennan last night about men, it occurred to me that Andrew probably didn't change much when it came to women.
• Well, after installing the LClock XO, the sonic imprint didn't change much: the sound remained brilliant, and voices cried out more than necessary.
• Their lead didn't change much since the last passage.
• Her facial expression doesn't change much.
• Life didn't change much, but his body did.
• Knowing the answer won't change much.
• The Grief of Comedy doesn't change much in the overall structure of the original, but it remains a challenge to keep the humorous details.
• Where as in the US, Australia and South Africa the accent doesn't change much over hundreds of kilometres in the UK, neighbouring cities can have noticable differences in pronunciation.
• You can refuse the Earth's turning, but it won't change much.
• I live in San Francisco where the weather doesn't change much throughout the year.
• Now it turns out that these spots also don't change much when the virus mutates.
• Like I said, things don't change much in Woodbury, but every now and then, we need to be reminded that change can be good.
• That's why we see many people who meditate on the Light but haven't yet gotten to the level at which to contact the Sound, and their lives don't change much.
• In the fonnal presentations during the disceptatio generalis, there seemed to be a pattern of speaking that doesn't change much from one Synod to another.
• It wouldn't change much, You're so transparent,
• Her facial expression doesn't change much.
• My first encounter with Zen (in 1988) didn't change me much. Sure, I was more aware, but not in touch with other people's pain.

Some examples from the web:

• It hasn't changed much in the 150 years since we disappeared.
• Hasn't changed much, just costs more.
• The place hasn't changed much.
• The village hadn't changed much.
• He hasn't changed much since b-school.
• Haven't changed much since the 19th Century.
• In that respect, things haven't changed much.
• It hasn't changed much here.
• Sounds like Aunt Edie hasn't changed much.
• I can see you haven't changed much.
• I can see you haven't changed much.
• Your office hasn't changed much, sir. No.
• Impulse engines haven't changed much in 200 years.
• I see your filing system hasn't changed much.
• Well, it hasn't changed much over the years.
• Still, the top five apps haven't changed much.
• The club hasn't changed much since 1978.
• You haven't changed much, Tammy.
• The process hasn't changed much.
• Things haven't changed much today from the opening of the division.