See the deprecation notice https://github.com/timescale/timescaledb/releases/tag/2.18.0 and also maybe the parent task ZBXNEXT-9770 for better situation awareness.

This subtask is for all changes in API.

If TimescaleDB >= 2.18.0 then
    Deprecated function `hypertable_compression_stats` should be replaced with the new function `hypertable_columnstore_stats`.
else
    Deprecated function `hypertable_compression_stats` should be used for compatibility reasons.

Zabbix should still work with TimescaleDB >= ZBX_TIMESCALE_MIN_VERSION, which is defined in https://git.zabbix.com/projects/ZBX/repos/zabbix/browse/include/zbx_dbversion_constants.h#50.

Also, please double check that I have not missed any of the deprecated parameters, functions, procedures and views in this deprecation notice https://github.com/timescale/timescaledb/releases/tag/2.18.0 used somewhere across Zabbix API and Zabbix fronted.