This gives you a much greater assurance that you are not reintroducing old bugs with each new patch you add to your code.

这会更加确保您对于每个添加到代码中的新补丁不会重新引入旧的错误。

youdao

Quite many new (and old) bugs and quirks are expected, so stabilization period is longer.

我们预料会出现很多新的（和旧的）缺陷和古怪的行为，因此稳定期会更长。

youdao

Here are some expressions about plain old bugs, another word for insects.

VOA: special.2009.06.28

But Dempster says its increasing adoption hasn't led to the patching of old bugs.

FORBES: VoIP Vandals

Oritavancin has gone through several drugmakers, including InterMune, and was rejected basically because too much of its pivotal data is years old, from before resistant bugs were much of a problem.

FORBES: The Antibiotics I Missed