Material Change

What is a material change?

A material change is a change to a contract or policy that is important enough to affect your rights, your costs or how your data is used. "Material" here just means significant.

The label matters because many vendor contracts treat material changes differently. A material change often triggers a promise to warn you in advance. A non-material change may take effect the moment it is posted, with no warning at all.

So the word decides whether you get a notice of changes, and how much time you get to react.

What it looks like in a vendor's terms

A typical clause reads like this:

We may update these Terms from time to time. If we make a material change, we will notify you at least 30 days before it takes effect. For any other change, the updated Terms apply as soon as we post them. We decide whether a change is material.

• "If we make a material change": only significant changes get the advance warning.
• "At least 30 days": the notice period for material changes.
• "Any other change ... as soon as we post": no warning for changes the vendor sees as minor.
• "We decide": the vendor, not you, draws the line.

The GitHub Terms of Service follow this pattern: GitHub promises at least 30 days' notice of material changes "such as price increases."

Who decides what is material

In many vendor terms, the vendor makes the first call. Contracts often give only an example rather than a full definition, like GitHub's "such as price increases." The X Purchaser Terms of Service promise advance notice of "material revisions" without listing what counts.

Some contracts tie the idea to harm instead. A 2014 version of the Atlassian Customer Agreement promised reasonable efforts to notify customers when a change meaningfully reduced their rights. The AWS Customer Agreement gives 90 days' notice for "adverse" changes to its service level agreements.

If there is a dispute, a court or regulator can take its own view. Some state privacy laws, such as the Colorado Privacy Act, require notice to consumers of certain material changes to a privacy notice even when the policy says changes take effect on posting.

Examples of material and cosmetic changes

Changes that are often material:

• Price increases, new fees, or a removed cap on renewal price increases.
• New uses of your data, such as AI training or advertising.
• A lower limitation of liability or a new arbitration requirement.
• Keeping your data longer, or adding new subprocessors (outside companies that handle your data).
• A deleted promise, even if it was one sentence.

Changes that are usually cosmetic are covered in the section below.

A real change we caught

Venpo flagged the sentence GitBook deleted from its AI policy. In August 2026, GitBook replaced a five-sentence policy that promised "Customer data is never shared with OpenAI or used to train any AI models." The new, longer policy keeps a no-training promise but says questions and page content are sent to OpenAI. One deleted sentence held two promises, and only one survived.

Why it matters to you

If a vendor decides a change is not material, you may get no email. The change still binds you under many contracts once it is posted. That is how real changes slip past busy teams.

Material changes also start the clock on your rights. Some contracts let you object or cancel, but only within a set time after a material change is announced. Miss the window and the new terms stand.

For data changes, there is a knock-on effect. If you promised your own customers how their data is handled, a material change at a vendor can make your promise inaccurate.

What to check

• Whether the contract defines "material," or only gives examples.
• Whether material changes get a set number of days' notice, and by what channel.
• Whether non-material changes can take effect on posting with no notice.
• Whether you get a right to object or cancel after a material change.
• In a negotiated contract, ask that any change reducing your rights or raising your costs counts as material by definition.

Cosmetic change

A cosmetic change is an edit that does not change anyone's rights or duties. It changes how a document looks or reads, not what it means.

Common cosmetic changes:

• A new "last updated" date with no other edits.
• Fixed typos, grammar or formatting.
• Updated links, company addresses or contact emails.
• Reordered headings or a new page design.

The line is not always clean. Moving a clause to another document can look cosmetic, but it may change which rules bind you. For example, Perplexity moved three protections out of its privacy policy. A new provider name in a list can also matter, as in the case where SurveyMonkey changed its AI providers on a page still dated November 2025.

The safe test: read the old and new versions side by side. If any promise, number, name or duty changed, treat it as material until you know otherwise.

How Venpo helps

Vendors decide what counts as material, and many changes arrive with no email. Venpo watches your vendors' terms, privacy policies, DPAs and other public legal pages and emails you a plain-English alert when one changes, with what changed and why it matters. You do not have to rely on the vendor's own label.