Sourced fromsveltekit-superforms's releases.

v2.27.4

Security

• Fixed prototype pollution when usingdataType: 'json'.

v2.27.2

Security

• Devalue version bumped to avoidprototype pollution.

Fixed

• Zod 4 tests working.
• Zod 4 adapter didn't use the correct JSON Schema format for dates.
• Nested data traversal for correcting invalid types didn't stop at a valid value, replacing paths with default data further down the tree.

v2.27.1

Fixed

• Fixed client validation issue with rapid multiple blur events.
• Arktype adapter improved.
• Union schemas now works with default values, replacing invalid properties even if nested.
• When using the{ taint: 'untaint-form' } option, form wasn't untainted unless it was modified.

v2.27.0

Added

• TheArktype adapter is finally a "full" adapter, meaning it's retrospectable and doesn't require default values anymore!

Fixed

• SuperDebug rune version is back, can now be imported asimport SuperDebug from 'sveltekit-superforms/SuperDebug.svelte';
• Fixedbigint handling for Zod 4 and Valibot.

Sourced fromsveltekit-superforms's changelog.

[2.27.4] - 2025-10-14

Security

• Fixed prototype pollution when usingdataType: 'json'.

[2.27.2] - 2025-10-03

Security

• Devalue version bumped to avoidprototype pollution.

Fixed

• Zod 4 tests working.
• Zod 4 adapter didn't use the correct JSON Schema format for dates.
• Nested data traversal for correcting invalid types didn't stop at a valid value, replacing paths with default data further down the tree.

[2.27.1] - 2025-06-27

Fixed

• Fixed client validation issue with rapid multiple blur events.
• Arktype adapter improved.
• Union schemas now works with default values, replacing invalid properties even if nested.
• When using{ taint: 'untaint-form' } option, form wasn't untainted unless it was modified.

[2.27.0] - 2025-06-16

Added

• TheArktype adapter is finally a "full" adapter, meaning it's retrospectable and doesn't require default values anymore!

Fixed

• SuperDebug rune version is back, can now be imported asimport SuperDebug from 'sveltekit-superforms/SuperDebug.svelte';
• Fixedbigint handling for Zod 4 and Valibot.

• 34f1abf 2.27.4
• 4a1310d Fixed prototype pollution when using dataType: 'json'
• 58faeb9 2.27.3
• fe94fa8 Fixed prototype pollution when using dataType: 'json'
• 0880f91 Type check in tests
• 1576ab4 More svelte compiler fixes
• 49bb413 Linter fix
• a292322 Turned off new svelte eslint rule
• e77f33c Removed debug output from tests
• 22689d4 2.27.2
• Additional commits viewable incompare view

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