undocumented behavior
[/ˌʌndɑːkjəˈmɛntɪd bɪˈheɪvjər/]
nounpl: undocumented behaviors
comportamento não documentado
1. Software or system behavior that is not described in official documentation, specifications, or user manuals, often discovered through experimentation or accident
The developer discovered an undocumented behavior where the application would crash if the input exceeded 999 characters.
O desenvolvedor descobriu um comportamento não documentado onde a aplicação travava se a entrada excedesse 999 caracteres.
2. Functionality or side effects in code that work but are not officially supported or guaranteed to continue working in future versions
Relying on undocumented behavior is risky because the software vendor may change it without warning.
Depender de comportamento não documentado é arriscado porque o fornecedor de software pode alterá-lo sem aviso prévio.
This term is primarily used in software development and IT contexts in both American and Brazilian cultures. In Brazil, it's commonly used among developers and tech professionals. The concept emphasizes the importance of following specifications and avoiding dependencies on unofficial features, reflecting international software engineering best practices across both English and Portuguese-speaking tech communities.
Related Idioms & Phrases
relying on undocumented behavior is like walking on thin ice
undocumented behavior: today's feature, tomorrow's bug
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