On Wed, Feb 9, 2022 at 8:37 AM Steve Sakoman <[email protected]> wrote: > > On Tue, Feb 8, 2022 at 1:07 PM Richard Purdie > <[email protected]> wrote: > > > > Forwarding to the correct list address and cc the LTS maintainer. > > > > Cheers, > > > > Richard > > > > > > > > ---------- Forwarded message ---------- > > From: Sinan Kaya <[email protected]> > > To: Richard Purdie <[email protected]>, Paul Eggleton > > <[email protected]>, Yocto list discussion > > <[email protected]> > > Cc: > > Bcc: > > Date: Sun, 6 Feb 2022 20:14:37 -0500 > > Subject: Maintaining ABI Compatibility for LTS branch > > Hi Everyone, > > > > One of the limitations of Yocto LTS branch is that there is no > > guaranteed backwards compatibility. Therefore, any time we move a branch > > forward to move to latest dunfell release, we are taking a risk of > > breaking our customers. > > I'd be interested in hearing about any cases where we've broken things! > > In general I don't take version upgrades (other than bug fix/cve fix > only dot releases) > > > Yocto reserves the right to move a package version forward if a > > security fix cannot be applied properly as an example. > > These cases should be extremely rare, and the community/technical > steering committee is given an opportunity to review this before it > happens. > > I'm certainly open to suggestions on how we can do better. > > I'd love to see some tooling to do ABI checking!
I think its not that LTS itself but also upgrade from LTS to LTS or other newer versions, it wouuld be good to have this tool and prerhaps a list of API/ABI changes to help migration/upgrade to newer LTS releases. > > Steve > > > This promise is being held true on the kernel by running kernel API > > tests etc. and running test benches across different CI environments. > > > > I was curious about how everyone is approaching this problem. > > There was some attempt to bring ABI checking functionality in the past > > but this has never been merged. > > > > Is everyone rolling their own solution? or never moving forward? > > > > Sinan > > > > >
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