5.2.18-dfsg-2~ubuntu18.04.1 updates (multiverse) 2018-11-26 5.2.10-dfsg-6 release (multiverse) 2018-04-27
it should be there, and in any case, 5.2.18-dfsg-2~ubuntu18.04.2 will guarantee the upgrade path from bionic/release, previous ubuntu releases, and upgrades to cosmic release/updates.
5.2.18- dfsg-2~ ubuntu18. 04.1 updates (multiverse) 2018-11-26
5.2.10-dfsg-6 release (multiverse) 2018-04-27
it should be there, and in any case, 5.2.18- dfsg-2~ ubuntu18. 04.2 will guarantee the upgrade path from bionic/release, previous ubuntu releases, and upgrades to cosmic release/updates.