- These are the highlights of new features or additions to existing features in v5.0.x and 5.1.x. For the complete list of all changes see this JIRA Release Notes.
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New configuration options
- 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.
Jira: TS-2314,
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.
- 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.
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The following improvements were made to existing plugins:
- The header_rewrite plugin no longer requires the Boost libraries.
- The stats_over_http plugin will now emit JSON numbers.
- The background_fetch plugin can now be controlled per remap-rule.
New following additions were also done to plugins:
- The mySQL remap plugin now actually builds, as part of experimental. This is technically not a new plugin, but it would not build before.
Jira: TS-2119, TS-3068, TS-3071, TS-2682,
Plugin APIs
The following additions were made to the plugin APIs:
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