v4.2.1

4.2.1 / 2023-08-04

Codename: If a bug falls in the forest

Bug fixes

• #291 Handle / in job name in
  Prometheus::Client::Push:
  Previously, if you included a / in your job name when using the Pushgateway client,
  you'd get a 400 error back as we didn't encode it properly. We now base64 encode it
  per the Pushgateway spec.

  It's possible that nobody has hit this bug (/ is fairly unlikely to appear in a job
  name) or that the error message (a 400 from Pushgateway with a complaint about an
  odd number of path components) didn't make it look like a bug in the Ruby client.
  Either way, this hopefully brings us fully in line with the spec!