Undergrad GW detectors -- How much has their sensitivity improved since 2008?

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Since 2008, gravitational wave (GW) detectors have significantly improved in sensitivity, allowing for the detection of more subtle signals from black hole mergers. Advanced LIGO and Virgo have achieved sensitivity levels that enable the observation of events previously undetectable, confirming the existence of black hole binaries. The advancements in technology and data analysis techniques have led to a substantial increase in the number of detected gravitational wave events. These developments suggest that while indirect methods remain important, direct detection of black holes through gravitational waves is now feasible. The ongoing enhancements in GW detector capabilities continue to expand our understanding of black hole systems.
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According to Schutz's second edition of "A First Course in GR" on page 318:
The simplicity of the black hole model has made it possible to identify systems containing black holes based only on indirect evidence, on their effects on nearby gas and stars. Until gravitational wave detectors become sufficiently sensitive to detect radiation from black holes, this will be the only way to find them.
So to my question.
The book was written in 2008, since then have the GW detectors become sufficiently sensitive to detect radiation from black holes?
What has changed since 2008?

Thanks!
 
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This Wikipedia page has a nice list of GW detection events:

https://en.wikipedia.org/wiki/List_of_gravitational_wave_observations

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