On 18 Jul 2026, at 17:08, Khem Raj <[email protected]> wrote: > libidn2 default was switched to build non-GPL3 images conveniently by > switching to use ICU, where ICU is used by embedded systems more commonly > than libidn2.
Luckily the library is dual-licensed which should help this. Only the -bin package is v3-only. > Switch back to libidn2 to respect upstream's opinion, and because ICU is > a monolithic dependency: this switch causes a minimal image containg > libpsl to shrink by ~30MB. > > Which production image are you building ? Production images are obviously hard to compare, so I was comparing minimal. Basically ICU is large, libidn2 is likely already present (gnutls and curl use it by default), so if you’re not otherwise using ICU that’s a big saving. Ross
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