Silk Central 19.5 or later internally uses the libraries of the AdoptOpenJDK instead of the Oracle JRE. This change affects all servers
               (the application server, the front-end server, the chart server, the execution server) as well as the communication and interaction
               between all servers. 
               	 
            
 
            	 
            For the front-end server, the chart server, and the application server, the following rules apply with 
               		
Silk Central 19.5 or later: 
               	 
               
 
                  		
                  - New instances of these servers are always 64-bit. 
                     		
                  
-  The default instance (silk) that is created with a new installation of 
                     		  Silk Central is always 64-bit. 
                     		
                  
- As long as an existing 32-bit instance is not upgraded, it remains a 32-bit instance. 
                     		
                  
- Applying a hotfix to an existing 32-bit instance does not change the bitness to 64-bit. The instance remains a 32-bit instance.
                     
                     		
                  
-  Upgrading an existing 32-bit instance to 
                     		  Silk Central 19.5 or later automatically converts it to a 64-bit instance.