What's Changed

• Remove static from http2metricschannelhandler to allow for override by @karim-z in https://github.com/Netflix/zuul/pull/1750
• Allow override for default filter concurrency limit by @argha-c in https://github.com/Netflix/zuul/pull/1752
• Allow custom overrides with global filter concurrency limits by @argha-c in https://github.com/Netflix/zuul/pull/1753
• Move perserver waterline to a niws config by @jguerra in https://github.com/Netflix/zuul/pull/1754
• Pass ChannelHandlerContext to doAuth call by @kyagna in https://github.com/Netflix/zuul/pull/1756
• Add config to disable close on circuit breaker by @jguerra in https://github.com/Netflix/zuul/pull/1755
• Fire reject event before closing the conn. by @argha-c in https://github.com/Netflix/zuul/pull/1759
• Bump to netty 4.1.109 by @jguerra in https://github.com/Netflix/zuul/pull/1765
• Clear reference to outbound response on complete by @jguerra in https://github.com/Netflix/zuul/pull/1767
• Add Lazy cache for originalhost by @karim-z in https://github.com/Netflix/zuul/pull/1766
• Fix typo when converting originalHost toString by @karim-z in https://github.com/Netflix/zuul/pull/1768
• Parse and persist custom TLVs encoded in ppv2 conn. bytes by @argha-c in https://github.com/Netflix/zuul/pull/1771
• make channel attr public by @argha-c in https://github.com/Netflix/zuul/pull/1772
• reorder static imports by @argha-c in https://github.com/Netflix/zuul/pull/1774
• Adjust retry policy before checking isBelowRetryLimit by @jguerra in https://github.com/Netflix/zuul/pull/1775
• copy tlv channel attr for h2 streams by @argha-c in https://github.com/Netflix/zuul/pull/1776
• Fix fetching body content after buffer has been read by @gavinbunney in https://github.com/Netflix/zuul/pull/1778
• Only check filter body buffering if message content still inflight by @gavinbunney in https://github.com/Netflix/zuul/pull/1779
• Upgrade to Netty 4.1.11 by @argha-c in https://github.com/Netflix/zuul/pull/1782
• Break keepalive interval out to protected helper to allow override by @AlexanderEllis in https://github.com/Netflix/zuul/pull/1783
• Replace remaining FPs in ConnectionPoolConfigImpl with niws style by @jguerra in https://github.com/Netflix/zuul/pull/1784
• Fix case of MaxRequestsPerConnection by @jguerra in https://github.com/Netflix/zuul/pull/1785

Full Changelog: https://github.com/Netflix/zuul/compare/v2.5.0...v2.5.1