Bump document version (#2053)

* Update release versions for all readme and build files.

* Update changelog

29 files changed, 126 insertions, 120 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d4aa6cb..7f47d4d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## Unreleased
-- feat: Allow users to specify a metric display name prefix, separately from the metric name prefix
+
+## 0.27.0 - 2020-08-14
+- deps: update protobuf (#2029)
+- Update release versions for all readme and build files. (#2028)
+- deps: update Guava to 29.0 (#2032)
+- Add more InstanaExporterHandler tests (#2014)
+- feat: Allow users to specify a metric display name prefix, separately from the metric name prefix (#2050)
 
 ## 0.26.0 - 2020-03-19
 - feat: Allow users to register the same Meter multiple times without exception (#2017)
diff --git a/README.md b/README.md
index 9457945b..2fc76db2 100644
--- a/README.md
+++ b/README.md
@@ -32,14 +32,14 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
 ```
 
 ### Hello "OpenCensus" trace events
@@ -182,12 +182,12 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -195,8 +195,8 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 ### How to setup exporters?
diff --git a/contrib/appengine_standard_util/README.md b/contrib/appengine_standard_util/README.md
index 3805afb7..36c3e6ab 100644
--- a/contrib/appengine_standard_util/README.md
+++ b/contrib/appengine_standard_util/README.md
@@ -16,14 +16,14 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-appengine-standard-util</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-contrib-appengine-standard-util:0.26.0'
+compile 'io.opencensus:opencensus-contrib-appengine-standard-util:0.27.0'
 ```
 
 [travis-image]: https://travis-ci.org/census-instrumentation/opencensus-java.svg?branch=master
diff --git a/contrib/dropwizard/README.md b/contrib/dropwizard/README.md
index 28eb133a..221df132 100644
--- a/contrib/dropwizard/README.md
+++ b/contrib/dropwizard/README.md
@@ -18,14 +18,14 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-dropwizard</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-contrib-dropwizard:0.26.0'
+compile 'io.opencensus:opencensus-contrib-dropwizard:0.27.0'
 ```
 
 ### And the following code:
diff --git a/contrib/dropwizard5/README.md b/contrib/dropwizard5/README.md
index 7a0d012b..031fb4b8 100644
--- a/contrib/dropwizard5/README.md
+++ b/contrib/dropwizard5/README.md
@@ -18,14 +18,14 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-dropwizard5</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-contrib-dropwizard5:0.26.0'
+compile 'io.opencensus:opencensus-contrib-dropwizard5:0.27.0'
 ```
 
 ### And the following code:
diff --git a/contrib/exemplar_util/README.md b/contrib/exemplar_util/README.md
index e90884a7..7f205019 100644
--- a/contrib/exemplar_util/README.md
+++ b/contrib/exemplar_util/README.md
@@ -17,14 +17,14 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-exemplar-util</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-contrib-exemplar-util:0.26.0'
+compile 'io.opencensus:opencensus-contrib-exemplar-util:0.27.0'
 ```
 
 [travis-image]: https://travis-ci.org/census-instrumentation/opencensus-java.svg?branch=master
diff --git a/contrib/grpc_util/README.md b/contrib/grpc_util/README.md
index a1735a15..fc5c3e9e 100644
--- a/contrib/grpc_util/README.md
+++ b/contrib/grpc_util/README.md
@@ -16,14 +16,14 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-grpc-util</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-contrib-grpc-util:0.26.0'
+compile 'io.opencensus:opencensus-contrib-grpc-util:0.27.0'
 ```
 
 [travis-image]: https://travis-ci.org/census-instrumentation/opencensus-java.svg?branch=master
diff --git a/contrib/http_jaxrs/README.md b/contrib/http_jaxrs/README.md
index eab04357..bfe51261 100644
--- a/contrib/http_jaxrs/README.md
+++ b/contrib/http_jaxrs/README.md
@@ -15,20 +15,20 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-http-jaxrs</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-contrib-http-jaxrs:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-contrib-http-jaxrs:0.27.0'
 ```
 
 ### Usage
diff --git a/contrib/http_jetty_client/README.md b/contrib/http_jetty_client/README.md
index f8fdf54a..b7621319 100644
--- a/contrib/http_jetty_client/README.md
+++ b/contrib/http_jetty_client/README.md
@@ -15,20 +15,20 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-http-jetty-client</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-contrib-http-jetty-client:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-contrib-http-jetty-client:0.27.0'
 ```
 
 ## Instrumenting Jetty Http Client
diff --git a/contrib/http_servlet/README.md b/contrib/http_servlet/README.md
index 6ae04e73..ecb03fb8 100644
--- a/contrib/http_servlet/README.md
+++ b/contrib/http_servlet/README.md
@@ -15,20 +15,20 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-http-servlet</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-contrib-http-servlet:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-contrib-http-servlet:0.27.0'
 ```
 
 ## Instrumenting HTTP Servlets
diff --git a/contrib/http_util/README.md b/contrib/http_util/README.md
index e2544ddc..2b7b9392 100644
--- a/contrib/http_util/README.md
+++ b/contrib/http_util/README.md
@@ -16,20 +16,20 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-http-util</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
 </dependencies>
 ```
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-contrib-http-util:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-contrib-http-util:0.27.0'
 ```
 
 ## Instrumenting HTTP libraries/frameworks
diff --git a/contrib/log_correlation/log4j2/README.md b/contrib/log_correlation/log4j2/README.md
index 4af4ead3..2827950d 100644
--- a/contrib/log_correlation/log4j2/README.md
+++ b/contrib/log_correlation/log4j2/README.md
@@ -25,7 +25,7 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-log-correlation-log4j2</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -33,7 +33,7 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-runtime 'io.opencensus:opencensus-contrib-log-correlation-log4j2:0.26.0'
+runtime 'io.opencensus:opencensus-contrib-log-correlation-log4j2:0.27.0'
 ```
 
 ### Configure the `OpenCensusTraceContextDataInjector`
diff --git a/contrib/log_correlation/stackdriver/README.md b/contrib/log_correlation/stackdriver/README.md
index d5d46f5d..e101ae82 100644
--- a/contrib/log_correlation/stackdriver/README.md
+++ b/contrib/log_correlation/stackdriver/README.md
@@ -29,7 +29,7 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-log-correlation-stackdriver</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -37,7 +37,7 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-runtime 'io.opencensus:opencensus-contrib-log-correlation-stackdriver:0.26.0'
+runtime 'io.opencensus:opencensus-contrib-log-correlation-stackdriver:0.27.0'
 ```
 
 ### Configure the `OpenCensusTraceLoggingEnhancer`
diff --git a/contrib/spring/README.md b/contrib/spring/README.md
index 1c56209b..d48f67e1 100644
--- a/contrib/spring/README.md
+++ b/contrib/spring/README.md
@@ -18,17 +18,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-spring</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
   
@@ -45,9 +45,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-contrib-spring:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-contrib-spring:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 runtime 'org.springframework:spring-aspects:SPRING_VERSION'
 ```
 
diff --git a/contrib/spring_sleuth_v1x/README.md b/contrib/spring_sleuth_v1x/README.md
index 39fbb458..97bf4ffe 100644
--- a/contrib/spring_sleuth_v1x/README.md
+++ b/contrib/spring_sleuth_v1x/README.md
@@ -22,7 +22,7 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-spring-sleuth</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <exclusions>
       <exclusion>
 	    <groupId>org.springframework.cloud</groupId>
@@ -39,7 +39,7 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-contrib-spring-sleuth:0.26.0'
+compile 'io.opencensus:opencensus-contrib-spring-sleuth:0.27.0'
 ```
 
 [travis-image]: https://travis-ci.org/census-instrumentation/opencensus-java.svg?branch=master
diff --git a/contrib/zpages/README.md b/contrib/zpages/README.md
index 12366b1a..e682a1c7 100644
--- a/contrib/zpages/README.md
+++ b/contrib/zpages/README.md
@@ -16,17 +16,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-contrib-zpages</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -34,9 +34,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-contrib-zpages:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-contrib-zpages:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 ### Register the Z-Pages
diff --git a/examples/build.gradle b/examples/build.gradle
index bcc84317..f06d4b2c 100644
--- a/examples/build.gradle
+++ b/examples/build.gradle
@@ -33,7 +33,7 @@ repositories {
 group = "io.opencensus"
 version = "0.28.0-SNAPSHOT" // CURRENT_OPENCENSUS_VERSION
 
-def opencensusVersion = "0.26.0" // LATEST_OPENCENSUS_RELEASE_VERSION
+def opencensusVersion = "0.27.0" // LATEST_OPENCENSUS_RELEASE_VERSION
 def grpcVersion = "1.22.1" // CURRENT_GRPC_VERSION
 def prometheusVersion = "0.6.0"
 def jettyVersion = "9.4.17.v20190418"
diff --git a/examples/pom.xml b/examples/pom.xml
index 54fe76f4..97ad3f8d 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -12,7 +12,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <!-- change to the version you want to use. -->
     <jetty.version>9.4.17.v20190418</jetty.version>
-    <opencensus.version>0.26.0</opencensus.version><!-- LATEST_OPENCENSUS_RELEASE_VERSION -->
+    <opencensus.version>0.27.0</opencensus.version><!-- LATEST_OPENCENSUS_RELEASE_VERSION -->
     <grpc.version>1.27.2</grpc.version><!-- CURRENT_GRPC_VERSION -->
   </properties>
   <dependencies>
diff --git a/exporters/stats/prometheus/README.md b/exporters/stats/prometheus/README.md
index 5b225582..eca88c71 100644
--- a/exporters/stats/prometheus/README.md
+++ b/exporters/stats/prometheus/README.md
@@ -21,17 +21,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-stats-prometheus</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -39,9 +39,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-stats-prometheus:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-stats-prometheus:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 #### Register the exporter
diff --git a/exporters/stats/signalfx/README.md b/exporters/stats/signalfx/README.md
index 33e462ab..de04a2f0 100644
--- a/exporters/stats/signalfx/README.md
+++ b/exporters/stats/signalfx/README.md
@@ -27,17 +27,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-stats-signalfx</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -46,9 +46,9 @@ For Maven add to your `pom.xml`:
 For Gradle add to your dependencies:
 
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-stats-signalfx:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-stats-signalfx:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 ### Register the exporter
diff --git a/exporters/stats/stackdriver/README.md b/exporters/stats/stackdriver/README.md
index c0b7ba3d..1eeb831a 100644
--- a/exporters/stats/stackdriver/README.md
+++ b/exporters/stats/stackdriver/README.md
@@ -30,17 +30,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-stats-stackdriver</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -48,9 +48,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-stats-stackdriver:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-stats-stackdriver:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 #### Register the exporter
diff --git a/exporters/trace/datadog/README.md b/exporters/trace/datadog/README.md
index 2e70ac48..b4b9055e 100644
--- a/exporters/trace/datadog/README.md
+++ b/exporters/trace/datadog/README.md
@@ -21,17 +21,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-trace-datadog</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -39,9 +39,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-trace-datadog:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-trace-datadog:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 #### Register the exporter
diff --git a/exporters/trace/elasticsearch/README.md b/exporters/trace/elasticsearch/README.md
index 9d36b66b..0f8fef92 100644
--- a/exporters/trace/elasticsearch/README.md
+++ b/exporters/trace/elasticsearch/README.md
@@ -26,17 +26,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-trace-elasticsearch</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -45,9 +45,9 @@ For Maven add to your `pom.xml`:
 For Gradle add to your dependencies:
 
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-trace-elasticsearch:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-trace-elasticsearch:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 #### Register the exporter
diff --git a/exporters/trace/instana/README.md b/exporters/trace/instana/README.md
index 075feea8..acc3a074 100644
--- a/exporters/trace/instana/README.md
+++ b/exporters/trace/instana/README.md
@@ -27,17 +27,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-trace-instana</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -45,9 +45,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-trace-instana:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-trace-instana:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 #### Register the exporter
diff --git a/exporters/trace/jaeger/README.md b/exporters/trace/jaeger/README.md
index cce50160..7887cde4 100644
--- a/exporters/trace/jaeger/README.md
+++ b/exporters/trace/jaeger/README.md
@@ -40,17 +40,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-trace-jaeger</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -58,9 +58,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-trace-jaeger:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-trace-jaeger:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 #### Register the exporter
diff --git a/exporters/trace/logging/README.md b/exporters/trace/logging/README.md
index 4c04a52f..1e3ca8b2 100644
--- a/exporters/trace/logging/README.md
+++ b/exporters/trace/logging/README.md
@@ -15,17 +15,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-trace-logging</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -33,9 +33,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-trace-logging:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-trace-logging:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 ### Register the exporter
diff --git a/exporters/trace/ocagent/README.md b/exporters/trace/ocagent/README.md
index 72e81cb3..33fe658e 100644
--- a/exporters/trace/ocagent/README.md
+++ b/exporters/trace/ocagent/README.md
@@ -13,23 +13,23 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-trace-ocagent</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
   <dependency>
     <groupId>io.netty</groupId>
     <artifactId>netty-tcnative-boringssl-static</artifactId>
-    <version>0.26.0.Final</version>
+    <version>0.27.0.Final</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -37,9 +37,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-trace-ocagent:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-trace-ocagent:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 runtime 'io.netty:netty-tcnative-boringssl-static:2.0.20.Final'
 ```
 
diff --git a/exporters/trace/stackdriver/README.md b/exporters/trace/stackdriver/README.md
index c1425ead..4bff3210 100644
--- a/exporters/trace/stackdriver/README.md
+++ b/exporters/trace/stackdriver/README.md
@@ -34,17 +34,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-trace-stackdriver</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -52,9 +52,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-trace-stackdriver:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-trace-stackdriver:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 #### Register the exporter
diff --git a/exporters/trace/zipkin/README.md b/exporters/trace/zipkin/README.md
index 43841dff..e481cbf4 100644
--- a/exporters/trace/zipkin/README.md
+++ b/exporters/trace/zipkin/README.md
@@ -33,17 +33,17 @@ For Maven add to your `pom.xml`:
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-api</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-exporter-trace-zipkin</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
   </dependency>
   <dependency>
     <groupId>io.opencensus</groupId>
     <artifactId>opencensus-impl</artifactId>
-    <version>0.26.0</version>
+    <version>0.27.0</version>
     <scope>runtime</scope>
   </dependency>
 </dependencies>
@@ -51,9 +51,9 @@ For Maven add to your `pom.xml`:
 
 For Gradle add to your dependencies:
 ```groovy
-compile 'io.opencensus:opencensus-api:0.26.0'
-compile 'io.opencensus:opencensus-exporter-trace-zipkin:0.26.0'
-runtime 'io.opencensus:opencensus-impl:0.26.0'
+compile 'io.opencensus:opencensus-api:0.27.0'
+compile 'io.opencensus:opencensus-exporter-trace-zipkin:0.27.0'
+runtime 'io.opencensus:opencensus-impl:0.27.0'
 ```
 
 #### Register the exporter