Following the release of BPatterns, I am happy to share another idea that naturally grows out of it: simplifying deprecations in Pharo.

Today���s deprecations are powerful but verbose���string-based rewrite rules, duplicated selectors, and boilerplate that most of us copy from examples.

With BPatterns, all of this can be eliminated:

Object>>confirm: queryString

�� �� �� ����^��self��deprecatedBy:����[ ConfirmationRequest signal:��queryString��]

Deprecation is now expressed in the same language as the code itself, not in a separate, string-based mini-language. There is no need to think about transformation rules���they are part of the system and enabled by default.

Zero boilerplate.
No duplicated code

For more details��and comparison with current API see the blog post:

• https://dionisiydk.blogspot.com/2026/02/deprecations-as-they-should-be.html