Australia customers who purchase a Galaxy S10+ on a two-year plan with the telco Telstra are being offered a free, no strings attached, upgrade to the Galaxy S10 5G when it launches in the second quarter of the year. Customers who choose to opt in for the upgrade will have 21 days following the launch of the 5G model to return their Galaxy S10+ in good condition to swap it out for the free upgrade.
https://www.notebookcheck.net/Australian-Galaxy-S10-customers-offered-a-free-upgrade-to-Galaxy-S10-5G-on-launch-with-Telstra.410508.0.html