I had to end up using Odin to flash the latest update. I never even received a single update from the initial release. Just make sure you flash the CSC file and not the Home_CSC file. Backup your Galaxy using smart switch before doing this.
My phone was saying that it was already up to date. But I know that there was that new update on 01/31/2019. So I talked to Bixby and asked if there were any updates. The new update came up. I was able to update my S9+ to the latest version and didn't have any problems updating. Hope this works for you.
I tried asking Bixby and Bixby said searching and it showed that I'm on the latest update from 1st of August (something like that), other people I know and my sister and dad already got the update except me? Please help?
Thanks for reaching out. This forum is for support of US products and customers. As your product is a non-US model and support for these models is very limited, please seek a support team for your area. You can do so by using this link: http://www.samsung.com/visitcountry