CHANGELOG.md in elastic-apm-1.1.0 vs CHANGELOG.md in elastic-apm-2.0.0

@@ -2,9 +2,54 @@
 
 All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## 2.0.0 (2018-11-14)
+
+Version adds support for APM Server 6.5 and needs at least that.
+
+### Added
+
+- Support for APM Server 6.5 (Intake v2)
+- Support for Distributed Tracing (beta)
+- Support for RUM Agent correlation (Distributed Tracing)
+- Support for [HTTP.rb](https://github.com/httprb/http) (Instrumentation + Distributed Tracing)
+
+### Changed
+
+- Custom instrumentation APIs ([#209](https://github.com/elastic/apm-agent-ruby/pull/209))
+- Tag keys will convert disallowed chars to `_`
+- Default log level changed to `info`
+- Laxed version requirement of concurrent-ruby
+- Change `log_level` to only concern agent log
+
+### Deprecated
+
+#### APIs:
+
+- `ElasticAPM.transaction`
+- `ElasticAPM.span`
+
+#### Options:
+
+- `compression_level`
+- `compression_minimum_size`
+- `debug_http`
+- `debug_transactions`
+- `flush_interval`
+- `http_open_timeout`
+- `http_read_timeout`
+- `enabled_environments`
+- `disable_environment_warning`
+
+Some options that used to take a certain unit for granted now expects explicit units – but will fall back to old default.
+
+### Removed
+
+- Support for APM Server versions prior to 6.5.
+- Support for Ruby 2.2 (eol)
+
 ## 1.1.0 (2018-09-07)
 
 ### Added
 
 - Rake task instrumentation ([#192](https://github.com/elastic/apm-agent-ruby/pull/192))