Apache Traffic Server v9.0.0 released

Apache Traffic Server (ATS) v9.0.0 has been released, which is a high-performance, scalable HTTP reverse proxy and cache server.

This version includes the following new features worth noting:

• Experimental support for QUIC (draft 27 and 29)

• Support TLS v1.3 0RTT

• Significantly optimize HTTP/2 performance

• Support PROXY protocol

• Major improvements to Parent Selection, introducing new configuration filesstrategies.yaml

• Introduce some new plugins

• ……

PROXY agreement

ATS already supports the PROXY  protocol on the inbound side , and the input PROXY data will be converted into a Forwardedheader.

Developer features

• Add support for dtrace style markers (SDT), and add some markers where SystemTap, dtrace and gdb users are interested. See Debug Builds for details  .

Command line tool

• The traffic_server  program now has two new maintenance commands: verify_global_plugin and  verify_remap_plugin, which are used to load the shared object file of the plug-in and verify that it meets the minimum global or remap plug-in API requirements.

HTTP/2

Some configuration items have been added to the existing functions. For example, the following new configuration can be used to limit the rate of some overused clients.

• proxy.config.http2.max_settings_per_frame

• proxy.config.http2.max_settings_per_minute

In addition, in ATS v9.x, the performance of HTTP/2 is significantly better.

Click here for detailed updates .

Upgrade Guide | Changelog