Preparing release 1.19.0 (#2415)

* Preparing release 1.19.0

Signed-off-by: Gary Brown <gary@brownuk.com>

Update CHANGELOG.md

Co-authored-by: Juraci Paixão Kröhling <juraci.github@kroehling.de>

* Add known issue related to partial work on adding TLS to gRPC query server

Signed-off-by: Gary Brown <gary@brownuk.com>

* Fix the release date

Signed-off-by: Gary Brown <gary@brownuk.com>

Co-authored-by: Juraci Paixão Kröhling <juraci.github@kroehling.de>

CHANGELOG.md

@@ -1,8 +1,8 @@
 Changes by Version
 ==================
 
-1.19.0 (unreleased)
-------------------
+1.20.0 (unreleased)
+-------------------
 
 ### Backend Changes
 
@@ -14,6 +14,49 @@ Changes by Version
 
 ### UI Changes
 
+1.19.0 (2020-08-26)
+-------------------
+
+### Known Issues
+
+The pull request [#2297](https://github.com/jaegertracing/jaeger/pull/2297) aimed to add TLS support for the gRPC Query server but the flag registration is missing, so that this feature can't be used at the moment. A fix is planned for the next Jaeger version (1.20).
+
+### Backend Changes
+
+#### New Features
+
+* Reload TLS certificates on change ([#2389](https://github.com/jaegertracing/jaeger/pull/2389), [@pavolloffay](https://github.com/pavolloffay))
+* Add --kafka.producer.batch-min-messages collector flag ([#2371](https://github.com/jaegertracing/jaeger/pull/2371), [@prymitive](https://github.com/prymitive))
+* Make UDP socket buffer size configurable ([#2336](https://github.com/jaegertracing/jaeger/pull/2336), [@kbarukhov](https://github.com/kbarukhov))
+* Enable batch and queued retry processors by default ([#2330](https://github.com/jaegertracing/jaeger/pull/2330), [@pavolloffay](https://github.com/pavolloffay))
+* Add trace anonymizer prototype ([#2328](https://github.com/jaegertracing/jaeger/pull/2328), [@yurishkuro](https://github.com/yurishkuro))
+* Add native OTEL ES exporter ([#2295](https://github.com/jaegertracing/jaeger/pull/2295), [@pavolloffay](https://github.com/pavolloffay))
+* Define busy error type in processor ([#2314](https://github.com/jaegertracing/jaeger/pull/2314), [@pavolloffay](https://github.com/pavolloffay))
+* Use gRPC instead of tchannel in hotrod ([#2307](https://github.com/jaegertracing/jaeger/pull/2307), [@pavolloffay](https://github.com/pavolloffay))
+* TLS support for gRPC Query server ([#2297](https://github.com/jaegertracing/jaeger/pull/2297), [@jan25](https://github.com/jan25))
+
+#### Bug fixes, Minor Improvements
+
+* Check missing server URL in ES OTEL client ([#2411](https://github.com/jaegertracing/jaeger/pull/2411), [@pavolloffay](https://github.com/pavolloffay))
+* Fix Elasticsearch version in ES OTEL writer ([#2409](https://github.com/jaegertracing/jaeger/pull/2409), [@pavolloffay](https://github.com/pavolloffay))
+* Fix go vet warnings on Go 1.15 ([#2401](https://github.com/jaegertracing/jaeger/pull/2401), [@prymitive](https://github.com/prymitive))
+* Add new Elasticsearch reader implementation ([#2364](https://github.com/jaegertracing/jaeger/pull/2364), [@pavolloffay](https://github.com/pavolloffay))
+* Only add the collector port if it was not explicitly set ([#2396](https://github.com/jaegertracing/jaeger/pull/2396), [@joe-elliott](https://github.com/joe-elliott))
+* Fix panic in collector when Zipkin server is shutdown  ([#2392](https://github.com/jaegertracing/jaeger/pull/2392), [@Sreevani871](https://github.com/Sreevani871))
+* Update validity of TLS certificates to 3650 days ([#2390](https://github.com/jaegertracing/jaeger/pull/2390), [@rjs211](https://github.com/rjs211))
+* Added span and trace id to hotrod logs ([#2384](https://github.com/jaegertracing/jaeger/pull/2384), [@joe-elliott](https://github.com/joe-elliott))
+* Jaeger agent logs "0" whenever sampling strategies are requested ([#2382](https://github.com/jaegertracing/jaeger/pull/2382), [@jpkrohling](https://github.com/jpkrohling))
+* Fix shutdown order for collector components ([#2381](https://github.com/jaegertracing/jaeger/pull/2381), [@Sreevani871](https://github.com/Sreevani871))
+* Serve jquery-3.1.1.min.js locally ([#2378](https://github.com/jaegertracing/jaeger/pull/2378), [@chaseSpace](https://github.com/chaseSpace))
+* Use a single shared set of CA, client & server keys/certs for testing ([#2343](https://github.com/jaegertracing/jaeger/pull/2343), [@rjs211](https://github.com/rjs211))
+* fix null pointer in jaeger-spark-dependencies ([#2327](https://github.com/jaegertracing/jaeger/pull/2327), [@moolen](https://github.com/moolen))
+* Rename ARCH to TARGETARCH for multi platform build by docker buildx ([#2320](https://github.com/jaegertracing/jaeger/pull/2320), [@morlay](https://github.com/morlay))
+* Mask passwords when written as json ([#2302](https://github.com/jaegertracing/jaeger/pull/2302), [@objectiser](https://github.com/objectiser))
+
+### UI Changes
+
+* UI pinned to version 1.10.0. The changelog is available here [v1.10.0](https://github.com/jaegertracing/jaeger-ui/blob/master/CHANGELOG.md#v1100-august-25-2020)
+
 1.18.1 (2020-06-19)
 ------------------