On Mon, May 11, 2020 at 12:59:07PM +0100, Dimitri John Ledkov wrote: > On Mon, 11 May 2020 at 12:34, Adrian Bunk <b...@debian.org> wrote: > > > > On Sun, May 10, 2020 at 03:40:43PM +0200, László Böszörményi wrote: > > >.... > > > Level 1.5 is needed for Boost packages to be binNMUed: > > > Both boost1.67 and boost1.71 build correctly. > > >... > > > > Changing the icu version changes the libboost_regex ABI. > > > > The libboost-regex*-icu* provides untangle icu transitions from boost > > transitions, but reverse dependencies of libboost-regex1.67.0 in buster > > depend on libboost-regex1.67.0 not libboost-regex1.67.0-icu63. > > If icu in unstable could add Breaks: libbost-regex1.67-0 (<< > 1.67.0-141) that should be sufficient to ensure upgrades happen the > right way around from buster.
This is only true for upgrades from buster that happen after libbost-regex1.67-0 has been removed from unstable and testing. The safe way is: > Alternatively, we should work on removing boost1.67 in unstable & > testing. It should not ship. >... Is there a good reason why the boost 1.67 -> 1.71 transition has already happened in Ubuntu but not yet in Debian? > Regards, > > Dimitri. cu Adrian