Am I missing something here or is this a mistake?
# Release 2.7.0 (Oct 2 2016)
The wallet file format has been upgraded. This upgrade is not backward compatible, which means that a wallet upgraded to the 2.7 format will not be readable by earlier versions of Electrum.
Correct: This upgrade is
backward compatible.
The old versions are not forward compatible.
Backward compatible: refers to a hardware or software system that can use the interface of an older version of the same product. A new standard product or model is considered backward compatible when it is able to read, write or view older formats.
Forward compatible: Forward compatibility is a design characteristic that allows a system to gracefully accept input intended for a later version of itself. The concept can be applied to entire systems, electrical interfaces, telecommunication signals, data communication protocols, file formats, and computer programming languages.
