garbage-collection

Go 1.26 ships with the Green Tea garbage collector enabled by default, replacing the object-centric mark-sweep algorithm with a page-level scanner that reduces GC CPU costs by 10 to 40 percent in real-world workloads.

Java 26 ships 10 JEPs including HTTP/3, ahead-of-time caching for all garbage collectors, G1 throughput gains, and the final removal of the Applet API after a five-year deprecation.

Go 1.26 RC3 shipped February 4 with the Green Tea GC as default, an experimental SIMD package, post-quantum TLS, and enhanced generics.