Update README release versions

Author: Ian Craggs

README.md

@@ -32,7 +32,7 @@ Add the repository definition and the dependency definition shown below to your
 
 Replace %REPOURL% with either ``` https://repo.eclipse.org/content/repositories/paho-releases/ ``` for the official releases, or ``` https://repo.eclipse.org/content/repositories/paho-snapshots/  ``` for the nightly snapshots. Replace %VERSION% with the level required .
 
-The latest release version is ```1.2.0``` and the current snapshot version is ```1.2.1-SNAPSHOT```.
+The latest release version is ```1.2.1``` and the current snapshot version is ```1.2.2-SNAPSHOT```.
 
 
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