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@@ -96,7 +96,9 @@ use syn::parse_macro_input;
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/// Creates the account via a CPI to the system program and
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/// initializes it (sets its account discriminator).<br>
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/// Marks the account as mutable and is mutually exclusive with <code>mut</code>.<br>
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-/// Makes the account rent exempt unless skipped with `rent_exempt = skip`.<br>
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+/// Makes the account rent exempt unless skipped with <code>rent_exempt = skip</code>.<br><br>
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+/// Use <code>#[account(zero)]</code> for accounts larger than 10 Kibibyte.<br><br>
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+/// <code>init</code> has to be used with additional constraints:
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/// <ul>
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/// <li>
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/// Requires the <code>payer</code> constraint to also be on the account.
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@@ -371,7 +373,14 @@ use syn::parse_macro_input;
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/// </td>
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/// <td>
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/// Checks the account discriminator is zero.<br>
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-/// Enforces rent exemption unless skipped with <code>rent_exempt = skip</code><br><br>
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+/// Enforces rent exemption unless skipped with <code>rent_exempt = skip</code>.<br><br>
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+/// Use this constraint if you want to create an account in a previous instruction
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+/// and then initialize it in your instruction instead of using <code>init</code>.
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+/// This is necessary for accounts that are larger than 10 Kibibyte because those
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+/// accounts cannot be created via a CPI (which is what <code>init</code> would do).<br><br>
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+/// Anchor adds internal data to the account when using <code>zero</code> just like it
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+/// does with <code>init</code> which is why <code>zero</code> implies <code>mut</code>.
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+/// <br><br>
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/// Example:
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/// <pre><code>
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/// #[account(zero)]
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Paul