Migration from 4.1 vcl

[Cosimo Streppone]

On Wed, Oct 9, 2019, at 11:39, Dridi Boukelmoune wrote:
> On Wed, Oct 9, 2019 at 9:27 AM Miguel Gonzalez wrote:
> >
> > I am migrating from 4.1 and I am scared that with latest version varnish would break.
> > What should I take into account when migrating from 4.1?
> 
> Probably mostly third-party VMODs, since Varnish 6.x still supports
> the VCL 4.0 syntax.

Any specific info on migration of vmods?
I mostly use the "bundled" vmods[1], but occasionally others like libvmod-sqlite3[2].

If I wanted to convert or upgrade them, do you have any hints or info on what is likely to break and why?
Can these vmods still be built in the same way with 6.0?

Thanks,

-- 
Cosimo

[1] https://github.com/varnish/varnish-modules
[2] https://github.com/fgsch/libvmod-sqlite3