libicu52 is and old version of the package and is not needed by any software that is in Ubuntu 16.04. Therefore it won't be added.
** Changed in: icu (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to icu in Ubuntu. https://bugs.launchpad.net/bugs/1589487 Title: libicu52 not present Status in icu package in Ubuntu: Invalid Bug description: Hi, libicu52 is not installable but some applications needs it. Command 1300 of 8 #apt-get install libicu52 Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package libicu52 Please can you add to Xenial standard repository the libicu52 library? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/icu/+bug/1589487/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp