Update README etc to reference 1.73.0 (#12108)

diff --git a/README.md b/README.md
index 30e26bc..012eab4 100644
--- a/README.md
+++ b/README.md
@@ -44,8 +44,8 @@
 guide](https://grpc.io/docs/languages/java/quickstart) or the more explanatory [gRPC
 basics](https://grpc.io/docs/languages/java/basics).
 
-The [examples](https://github.com/grpc/grpc-java/tree/v1.72.0/examples) and the
-[Android example](https://github.com/grpc/grpc-java/tree/v1.72.0/examples/android)
+The [examples](https://github.com/grpc/grpc-java/tree/v1.73.0/examples) and the
+[Android example](https://github.com/grpc/grpc-java/tree/v1.73.0/examples/android)
 are standalone projects that showcase the usage of gRPC.
 
 Download
@@ -56,18 +56,18 @@
 <dependency>
   <groupId>io.grpc</groupId>
   <artifactId>grpc-netty-shaded</artifactId>
-  <version>1.72.0</version>
+  <version>1.73.0</version>
   <scope>runtime</scope>
 </dependency>
 <dependency>
   <groupId>io.grpc</groupId>
   <artifactId>grpc-protobuf</artifactId>
-  <version>1.72.0</version>
+  <version>1.73.0</version>
 </dependency>
 <dependency>
   <groupId>io.grpc</groupId>
   <artifactId>grpc-stub</artifactId>
-  <version>1.72.0</version>
+  <version>1.73.0</version>
 </dependency>
 <dependency> <!-- necessary for Java 9+ -->
   <groupId>org.apache.tomcat</groupId>
@@ -79,18 +79,18 @@
 
 Or for Gradle with non-Android, add to your dependencies:
 ```gradle
-runtimeOnly 'io.grpc:grpc-netty-shaded:1.72.0'
-implementation 'io.grpc:grpc-protobuf:1.72.0'
-implementation 'io.grpc:grpc-stub:1.72.0'
+runtimeOnly 'io.grpc:grpc-netty-shaded:1.73.0'
+implementation 'io.grpc:grpc-protobuf:1.73.0'
+implementation 'io.grpc:grpc-stub:1.73.0'
 compileOnly 'org.apache.tomcat:annotations-api:6.0.53' // necessary for Java 9+
 ```
 
 For Android client, use `grpc-okhttp` instead of `grpc-netty-shaded` and
 `grpc-protobuf-lite` instead of `grpc-protobuf`:
 ```gradle
-implementation 'io.grpc:grpc-okhttp:1.72.0'
-implementation 'io.grpc:grpc-protobuf-lite:1.72.0'
-implementation 'io.grpc:grpc-stub:1.72.0'
+implementation 'io.grpc:grpc-okhttp:1.73.0'
+implementation 'io.grpc:grpc-protobuf-lite:1.73.0'
+implementation 'io.grpc:grpc-stub:1.73.0'
 compileOnly 'org.apache.tomcat:annotations-api:6.0.53' // necessary for Java 9+
 ```
 
@@ -99,7 +99,7 @@
 (with the GAVs from above), or use `@io_grpc_grpc_java//api` et al (see below).
 
 [the JARs]:
-https://search.maven.org/search?q=g:io.grpc%20AND%20v:1.72.0
+https://search.maven.org/search?q=g:io.grpc%20AND%20v:1.73.0
 
 Development snapshots are available in [Sonatypes's snapshot
 repository](https://oss.sonatype.org/content/repositories/snapshots/).
@@ -131,7 +131,7 @@
       <configuration>
         <protocArtifact>com.google.protobuf:protoc:3.25.5:exe:${os.detected.classifier}</protocArtifact>
         <pluginId>grpc-java</pluginId>
-        <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.72.0:exe:${os.detected.classifier}</pluginArtifact>
+        <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.73.0:exe:${os.detected.classifier}</pluginArtifact>
       </configuration>
       <executions>
         <execution>
@@ -161,7 +161,7 @@
   }
   plugins {
     grpc {
-      artifact = 'io.grpc:protoc-gen-grpc-java:1.72.0'
+      artifact = 'io.grpc:protoc-gen-grpc-java:1.73.0'
     }
   }
   generateProtoTasks {
@@ -194,7 +194,7 @@
   }
   plugins {
     grpc {
-      artifact = 'io.grpc:protoc-gen-grpc-java:1.72.0'
+      artifact = 'io.grpc:protoc-gen-grpc-java:1.73.0'
     }
   }
   generateProtoTasks {