Is S60 Forward-Compatibility or Backward-Compatibility?

[bjtuchen]

Hi, Is S60 Forward-Compatibility or Backward-Compatibility? It seems that applications hardly can work on different versions of S60, neither with earlier version nor with later version.
So, can I say that S60 is neither Forward-Compatibility nor Backward-Compatibility? I am not sure about that. Anybody can confirm? thanks!

[netlover]

Hi, Is S60 Forward-Compatibility or Backward-Compatibility? It seems that applications hardly can work on different versions of S60, neither with earlier version nor with later version.
So, can I say that S60 is neither Forward-Compatibility nor Backward-Compatibility? I am not sure about that. Anybody can confirm? thanks!

the 2nd and 3rd neither compatibily, but 3rd fp1 and fp2 almost common-use.

[bjtu1318]

the 2nd and 3rd neither compatibily, but 3rd fp1 and fp2 almost common-use.

Thanks. My application is built on S60 3rd, but it can not run on my mobile phone. So maybe the difference is not negligible..

[ltomuta]

S60 comes with a backward compatibility promise (i.e. apps build for older platfrom releases will work on the new ones too). Of couse there could be some minor acidentall breaks but those would be documented as soon as we learn about them. The BC break between S60 2nd Edition and S60 3rd Edition is one special case, of a total compatibility break and it was/is extensively documented.

So, what exactly is your problem? What SDK have you used and on which phone it does not work?

[bjtuchen]

S60 comes with a backward compatibility promise (i.e. apps build for older platfrom releases will work on the new ones too). Of couse there could be some minor acidentall breaks but those would be documented as soon as we learn about them. The BC break between S60 2nd Edition and S60 3rd Edition is one special case, of a total compatibility break and it was/is extensively documented.

So, what exactly is your problem? What SDK have you used and on which phone it does not work?

Thanks ltomuta.
I got answer on <Developing Series 60 Applications> "Nokia or Series 60 Licensees release SDKs that are suitable for development for a specific version of Series 60 Platform. That is to say, each Series 60 product is based on a particular release of the platform, and SDK releases are made to be suitable for development for a platform version. ... Such "backward compatibility" will depend on the version of the Symbian OS used as the basis of the release, the APIs used by the application developer and any changes that have occurred in those APIs between platform releases."

[skumar_rao]

that is why it is always advised to read the ReadMe.txt which comes with the SDK.