Re: [pve-devel] [PATCH pve_flutter_frontend v1] chore: update `compileSdkVersion` to 35 and `targetSdkVersion` to 36

[Tim Marx <t.marx@proxmox.com>]

I think you are misinterpreting that Thomas, I meant what I said before.

The post Dominik referenced is right here, it definitely says that you should not have a higher targetSdkVersion, that is due the the Gradle build process and how they determine runtime compatibility for release builds and debug builds.
https://medium.com/androiddevelopers/picking-your-compilesdkversion-minsdkversion-targetsdkversion-a098a0341ebd

In the comments it is iterated again:
https://medium.com/@ianhlake/libraries-that-you-are-including-as-aars-or-remote-dependencies-from-maven-repositories-are-ca6cd7dd96ec

It does not make sense to me to have a higher target, you can't test that if you compile against a lower SDK.

> Thomas Lamprecht <t.lamprecht@proxmox.com> hat am 03.07.2025 16:56 CEST geschrieben:
> 
>  
> Am 03.07.25 um 16:45 schrieb Dominik Csapak:
> > On 7/3/25 16:25, Thomas Lamprecht wrote:
> >> Am 03.07.25 um 16:03 schrieb Dominik Csapak:
> >>> LGTM, and built + tested fine here,
> >>> but maybe someone else also wants to take a look too... (@thomas?)
> >>>
> >>> Does it even make sense to set the targetSdkVersion higher than the compiled one?
> >>
> >> Yeah, that can be fine, the targetSdkVersion basically denotes what (API)
> >> version one tested the App against and signals Android that it doesn't need
> >> to enable any backward compat handling as long as the Android (API) version
> >> is equal or lower than the provided targetSdkVersion.
> >>
> >> Such compat handling could e.g. be w.r.t. App permissions, if there are
> >> newer more granular one, or the default set got reduced it might break older
> >> apps, so that is only enabled if the app signals that it supports it,
> >> naturally with some time window to not allow uploading an app (update) to
> >> avoid that this can be misused.
> >>
> >> The compileSdkVersion is the API the app is compiled against and thus
> >> one can only actively use newer APIs if one increases this. Most of the time
> >> one want's to have those two in sync, but it's fine if the targetSdkVersion
> >> gets higher, it just cannot be lower than the compiled one.
> > 
> > sorry to continue this, but there is something I don't really understand here
> > (not that I want to say you're wrong, just wanting to understand)
> > 
> > how can my 'target sdk version' be higher than my 'compiled sdk version' ?
> > 
> > in that, how can i target sdks that are newer than the one i compile against?
> > wouldn't that mean that the old sdk (e.g. 35 in our case) must have
> > knowledge about the next version ?
> 
> Do not take the word "target" literally here, it should be interpreted as
> "tested" and is for forward compat, as the article (and my prev. reply)
> agrees upon.
> 
> > 
> > e.g i found an article[0] about those versions (not sure how good or representative it is)
> > 
> > that explicitely says:
> > 
> > ---
> > If you made it through the bolded notes, you’ll notice a relationship between the three values:
> > 
> > minSdkVersion <= targetSdkVersion <= compileSdkVersion
> > ---
> > 
> > which would mean that my target version can't be higher than my compile version...
> 
> That seems rather wrong, especially if one reads the explanation text
> which gets it right. Cannot really make sense to be able to use newer
> APIs thanks to a higher compileSdkVersion – which value is not recorded
> in the resulting apk/appbundle – but then tell android that it's only
> compatible with older ones.
> 
> The other direction, being compiled with an older SDK (API) really
> doesn't mean that ones app runs perfectly fine on a newer android, thus it
> can target the newer android without raising the compiled SDK version.
> 
> > that said, the app built successfully with these values, and I noticed no problem
> > with either android 15 and 16 (in an emulator...)
> 
> There really shouldn't be any, the article is quite good but that
> conclusion you quote is IMO where it got the summary wrong.
> 
> 
> > 0: 
> > https://medium.com/androiddevelopers/picking-your-compilesdkversion-minsdkversion-targetsdkversion-a098a0341ebd
> > 
> 
> 
> 
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