Odoo Changelog — 2026-04-24

Friday, April 24, 2026

1 change · 17.0

Improvements(1)

Enhancements to existing features

[IMP] base_vat: support alphanum CNPJ for Brazil

Core17.0base_vat

This update prepares Odoo to handle the upcoming transition to alphanumeric CNPJs for Brazilian businesses. The Brazilian government is expanding the CNPJ number system, and this change ensures Odoo can continue to accurately process and validate these new formats. A new validation method has been implemented to avoid dependency issues with older Odoo versions.

Original PR description

Purpose: The Brazilian Federal Government, through the Brazilian Federal Revenue Service (Receita Federal do Brasil), is implementing the alphanumeric CNPJ to address the imminent depletion of its…

Purpose: The Brazilian Federal Government, through the Brazilian Federal Revenue Service (Receita Federal do Brasil), is implementing the alphanumeric CNPJ to address the imminent depletion of its capacity to generate new CNPJ numbers. The current, exclusively numeric model is approaching its limit. The transition to a format that includes letters and numbers expands the number of possible combinations, ensuring the future availability of registrations for new companies. With the government expanding the CNPJ numbers, we need to implement a solution to support the alphanumeric CNPJ that will be issued starting July 2026.

Current Behavior: The method, `is_valid,` from stdnum is currently used to determine whether the CNPJ is valid or not. This is now considered an outdated method to determine the validation.

Changed Behavior: The new validation logic by stdnum, found here https://github.com/arthurdejong/python-stdnum/commit/d3ec3bd7fefe0d0a708b6594a66de28777eb9b8d, is patched into `check_vat_br.` The reasoning for patching this rather than calling stdnum is because using stdnum will cause library dependency issues for older versions of Odoo.

task-5234869
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#vat#brazil#cnpj#compliance

Purpose: The Brazilian Federal Government, through the Brazilian Federal Revenue Service (Receita Federal do Brasil), is implementing the alphanumeric CNPJ to address the imminent depletion of its capacity to generate new CNPJ numbers. The current, exclusively numeric model is approaching its limit. The transition to a format that includes letters and numbers expands the number of possible combinations, ensuring the future availability of registrations for new companies. With the government expanding the CNPJ numbers, we need to implement a solution to support the alphanumeric CNPJ that will be issued starting July 2026. Current Behavior: The method, `is_valid,` from stdnum is currently used to determine whether the CNPJ is valid or not. This is now considered an outdated method to determine the validation. Changed Behavior: The new validation logic by stdnum, found here https://github.com/arthurdejong/python-stdnum/commit/d3ec3bd7fefe0d0a708b6594a66de28777eb9b8d, is patched into `check_vat_br.` The reasoning for patching this rather than calling stdnum is because using stdnum will cause library dependency issues for older versions of Odoo. task-5234869 --- I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr