am upgrading from version 33 due to the TLS 1.0 deprecation and my script is no longer working. updated the jar version but am getting the following java error now.
C:\CustomerGrid\bin>call "C:\Program Files (x86)\salesforce.com\Data Loader"\jav a\bin\java.exe -cp "C:\Program Files (x86)\salesforce.com\Data Loader"\dataloade r-37.0.0-uber.jar -Dsalesforce.config.dir="C:\Program Files (x86)\salesforce.com \Data Loader\groupContactExtract\config" com.salesforce.dataloader.process.Proce ssRunner process.name=groupContactExtract Exception in thread "main" java.lang.UnsupportedClassVersionError: com/salesforc e/dataloader/process/ProcessRunner : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) Could not find the main class: com.salesforce.dataloader.process.ProcessRunner. Program will exit.