Clojurians Log v2
announcements 2026-10-12
https://github.com/mpenet/enso 1.0.0-beta94 is out! https://github.com/mpenet/enso is a high performance HTTP/1.1, HTTP/2, HTTP/3 server adapter written in java and optimized for ring, with no-dependency besides Clojure. HTTP/3 is opt-in and bundles cloudflare/quiche via a separate jar. In a comparison with http-kit, Jetty, Aleph and Netty, https://github.com/mpenet/enso has the highest throughput on every scenario and allocates a baseline of only ~393 bytes per HTTP/1.1 request where the others allocate 3.6 to 4 KB. see https://github.com/mpenet/enso/blob/main/doc/performance.md. This release was focused on stability and correctness, it went through hours/days of https://github.com/mpenet/enso/blob/main/doc/testing.md#property-and-fuzz-tests and https://github.com/mpenet/enso/blob/main/doc/testing.md#soak-and-chaos-run testing, https://github.com/mpenet/enso/blob/main/doc/testing.md#conformance-suites verification and a substantial refactoring. It's still WIP but it should be considered quite stable already.
Awesome stuff. Since it depends only on Clojure would you assume it should be usable with non-jvm Clojures, like Jolt?
No it's mostly written in java with a thin clj layer
I see, thanks!
besides Virtual Threads does it make use of other new features from latest JDKs?
not really. i would like to get rid of quiche eventually for http3, but for now making it optional was a tradeoff as there are no mature enough http3 implementations for java just yet.