Singapore Airlines is going to offer two hours of complimentary Wi-Fi access to all passengers on any of its Wi-Fi enabled aircraft.
This basically covers the entire fleet, except for the B737-800 NGs which ply some of the regional routes (not to be confused with the new B737-8s, which do have Wi-Fi).
This is for all the passengers on board and no differentiation in the class, business or economy.
Usually, users of the company's KrisFlyer reward programme have access to the free messaging plan for two hours, and top elites and business class travellers get 100MB for free.
With an increase in lockdowns and a pause in new approvals for verified travel lane tickets, it is unlikely that many travellers will be able to take advantage of this perk in the end. However, for the few passengers that are travelling, it is a nice bit of free Wi-Fi connectivity onboard. This service will be available from 01 January till 31 March 2022.