Google is updating the new regular expression (regex) filter in the Search Console performance report to support expressions that don’t match regex.
In addition, Google is providing additional tips tips for users that are new to regex.
Regex filtering was introduced to Search Console back in April. Google has been listening to user feedback, which includes many requests to complete the picture by adding a negative match option to the filter.
Starting today the performance report filter supports both matching and not matching regex filters.
Site owners can find the option through a secondary dropdown, which appears after picking the “Custom (regex)” option in the filter selector.
See the screenshot below for an example.
Source: Google Search Central Blog