Hello everybody,
I would like to upgrade from v.8.17.0 to 8.19.4
do this criticals deprecation issues will block my upgrade please ?
The Upgrading Assistant is to be used when upgrading between major versions, like from 8.X to 9.X, since you are upgrading between minor versions, I don't expect any issues with those warnings.
I tried this steps to create new indices with : synthetic mode but it keeps STORED all time!
PUT _component_template/metrics-system.socket_summary{"template": {"settings": {"index.mapping.source.mode": "synthetic"}}}
PUT /.ds-metrics-system.socket_summary-default-2025.11.13-000007-reindexed{"settings": {"index.mapping.source.mode": "synthetic"}}
POST _reindex{"source": {"index": ".ds-metrics-system.socket_summary-default-2025.11.13-000007"},"dest": {"index": ".ds-metrics-system.socket_summary-default-2025.11.13-000007-reindexed"}}
POST /metrics-system.socket_summary-default/_rollover
DELETE .ds-metrics-system.socket_summary-default-2025.11.13-000007DELETE .ds-metrics-system.socket_summary-default-2025.11.13-000007-reindexed
GET _data_stream/metrics-system.socket_summary-default
GET /.ds-metrics-system.socket_summary-default-2025.11.13-000011/_settings
As Leandro mentioned, the upgrade assistant is only useful when upgrading across major versions. We don’t test its correctness (and probably ought to hide it) on minor releases that are not candidates for upgrade to the next major release. You can currently only upgrade to 9.x from 8.19.x. So I would recommend ignoring the upgrade assistant for now, upgrading to 8.19, and then checking the upgrade assistant. Usually for a last minor release we have fixed all of the problems like this in elastic-provided indices. If you still have critical deprecation issues for those indices at that point, then that is probably a bug.
What license do you have ?
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Hi,
Even with all these critical warning i can go from 8.17.0 to last minor version 8.x ?
I have a basic licence.
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You can upgrade, but the synthetic source mode requires an Enterprise license since 8.17.X, that's why you are seeing it as stored.
You can check this information here.
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