Asus zenfone 4 max zc554kl pie update

[ZT-bc0590ff]

Please tell us some basic information before asking for help:
Model Name: Asus zenfone 4 max zc554kl
Firmware Version: 16...
Rooted or not: Not
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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Hello asus team, I know that an asus moderator at the time had said that from the list of zenphones that would be upgraded to version 9 pie, this model would be asus zenfone 4 max zc554kl.
This model asus zenfone 4 max zc554kl, has already received two betas aosp pie, when will we have an official version of pie 9?

[Christine_ASUS]

Hi carlosmonteirogomes76@gmail.com
Asus will continuously provide applicable updates to our products for 18 months from the device first become available on the market. For any devices launched over 18 months, there will no longer be any system updates and maintenance (including ZenUI Launcher).
Sorry for any inconvenience this may cause. Thank you for your understanding and support.