Thank you for your inquiry.
I have pasted below my TGTRLS Cheat sheet that I normally share with customers. I hope you find it useful
OS versions backward compatibility (TGTRLS):
To deploy from V7R4 to V7R2, objects must be Created at V7R2 as follows
Compile option could be set at one of the following levels:
NOTE: It would be preferable to set the following parameter at the highest possible level, while keeping the lower levels at the default level. i.e if all objects are intended for deployment to the V7R1 TARGET, then change the global level to V7R1 and insure the application is set to *GLOBAL; the release is set to *APP.
LMi Main Menu > 11. Setup menu > 1. Define options > Default TGTRLS for create commands [ The lowest required TGTRLS] - (Default is *CURRENT)
Application (Overrides Global)
LMi Main Menu > 12. Work with applications > 2=Change > 1. Change options > Default TGTRLS for create commands [ The lowest required TGTRLS] - (Default is *GLOBAL)
Release (Overrides Application)
LMi Main Menu > 13. Work with releases > 2=Change > 1. Change options > Page Down > Default TGTRLS for create commands [ The lowest required TGTRLS] - (Default is *APP)
TARGET Definition On the HOST:
LMi Main Menu > 6. Deployment menu > 12. Work with location definitions > 2=Change
> Remote System Release – (Default is *HOST)