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  • You can now force unsatisfiable Range: requests to go to origin even when read-while-writer is in effect. This can help avoid significant latency on large objects. The setting is overloaded on the existing proxy.config.cache.enable_read_while_writer configuration.
  • The option to specify configuration location, proxy.config.config_dir, is now actually implemented.
  • Add option to support SO_LINGER to origin server, via proxy.config.net.sock_option_flag_out.

Jira: TS-2314, TS-3192, TS-3119

TLS

 We continue to improve our TLS (HTTPS) features and support. Noteworthy in 5.2.x is:

  • SSLv3 is now disabled by default!
  • Dynamic TLS record size tuning. According to Ilya, this makes us the first server that is all Green. (smile)
  • Add forward secrecy support with DHE.
  • Add ssl_pre_handshake hook for better plugin access to SSL handling.
  • Improved session cache, for better performance and scalability.
  • New configuration for OpenSSL session cache, proxy.config.ssl.session_cache.auto_clear.

 

Jira: TS-3153, TS-2503, TS-2417, TS-2956, TS-3080, TS-3127

traffic_line

  • traffic_line -m is now using an unachored regular expression, similar to how diagnostic tracers work.
  • traffic_line --backtrace will produce a stack backtrace for all running threads.

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This is a new command line tool, to parse and decipher the Via: header that Traffic Server can produce. This is useful for debugging e.g. cache results etc.

Jira: TS-3149

TLS

We continue to improve our TLS (HTTPS) features and support. Noteworthy in 5.2.x is:

  • SSLv3 is now disabled by default!
  • Dynamic TLS record size tuning. According to Ilya, this makes us the first server that is all Green. (smile)
  • Add forward secrecy support with DHE.
  • Add ssl_pre_handshake hook for better plugin access to SSL handling.
  • Improved session cache, for better performance and scalability.
  • New configuration for OpenSSL session cache, proxy.config.ssl.session_cache.auto_clear.

traffic_crashlog

This is the helper application around the new crash logging feature. For more information, see the documentation.

Jira: TS-3195Jira: TS-3153, TS-2503, TS-2417, TS-2956, TS-3080, TS-3127

Plugin Improvements

The following plugins have new features and improvements.

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