# September 14, 2022 release notes¶

## OPAL¶

### Parse User-Agent values from web requests¶

detect_browser accepts the contents of a User-Agent header string and returns an object with details about the web browser which made the request. See the detect_browser documentation for more, including available parsing methods.

### Percentile value from Prometheus histogram metrics¶

prom_quantile adds support to estimate quantile values (such as “p90”) from histogram metrics collected from Prometheus.