HTTP/2 protocol support for the enhanced HTTP client (APAR PJ48066)

APAR PJ48066 introduces HTTP/2 protocol support to the enhanced HTTP client, which enables you to establish persistent and non-persistent HTTP/2 client sessions from z/TPF with automatic protocol upgrade capabilities.

With APAR PJ48066, a single HTTP/2 client session can support multiple concurrent HTTP/2 requests. Because the same high‑volume workload can be handled with fewer connections than HTTP/1.1 requires, the remote HTTP server uses fewer resources, particularly socket and Transport Layer Security (TLS) session overhead.

When you use persistent sessions through the high-speed connector, you can convert existing HTTP/1.1 sessions to HTTP/2 without any application changes. The protocol (HTTP/1.1 or HTTP/2) that is used to send HTTP requests is transparent to applications.

For more information about APAR PJ48066, see the APEDIT.