The Xbox 360 is backwards compatible with the title.
I've heard people complaining that 1Password broke, they had to issue a new extension that's not backwards compatible, which is rather odd.
SEC2 is 100% backwards compatible with existing keys and the current 1.08 client.
The first two were backwards compatible with the classic Game Boy.
Being backwards compatible in that version 6 can read project files saved by the old versions.
This version is not backwards compatible and has been poorly received.
Software that works on older versions of an operating system is said to be backwards compatible.
The game is backwards compatible on the Xbox 360.
The website states: "iperf3 is not backwards compatible with iperf2.
It is fully backwards compatible with 16-bit and 32-bit x86 code.