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Meaning of last known good | Babel Free

Phrase CEFR C1

Definitions

The most recent configuration that works properly, used to roll back changes that might later prove problematic.

CEFR level

C1

Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

last time I checked late in the game later, tater latero- lather, rinse, repeat Latino-