Following the releases of Eclipse Jetty 10.0.0 and 11.0.0, the Reactive HttpClient project — introduced back in 2017 — has released versions 1.1.5, 2.0.0 and 3.0.0.
Reactive HttpClient 1.1.x Series
Reactive HttpClient Versions 1.1.x, of which the latest is the newly released 1.1.5, requires at least Java 8 and it is based on Jetty 9.4.x.
This version will be maintained as long as Jetty 9.4.x is maintained, likely many more years, to allow migration away from Java 8.
Reactive HttpClient 2.0.x Series
Reactive HttpClient Versions 2.0.x, with the newly released 2.0.0, requires at least Java 11 and it is based on Jetty 10.0.x.
The Reactive HttpClient 2.0.x series is incompatible with the 1.1.x series, since the Jetty HttpClient APIs changed between Jetty 9.4.x and Jetty 10.0.x.
This means that projects such as Spring WebFlux, at the time of this writing, are not compatible with the 2.0.x series of Reative HttpClient.
Reactive HttpClient 3.0.x Series
Reactive HttpClient Versions 3.0.x, with the newly released 3.0.0, requires at least Java 11 and it is based on Jetty 11.0.x.
In turn, Jetty 11.0.x is based on the Jakarta EE 9 Specifications, which means jakarta.servlet and not javax.servlet.
The Reactive HttpClient 3.0.x series is fundamentally identical to the 2.0.x series, apart from the Jetty dependency.
While the HttpClient APIs do not change between Jetty 10 and Jetty 11, if you are using Jakarta EE 9 it will be more convenient to use the Reactive HttpClient 3.0.x series.
For example when using Reactive HttpClient to call a third party service from within a REST service, it will be natural to use Reactive HttpClient 2.0.x if you use javax.ws.rs, and Reactive HttpClient 3.0.x if you use jakarta.ws.rs.
Enjoy the new releases and tell us which series you use by adding a comment here!
For further information, refer to the project page on GitHub.
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