Do I need to update the mapping after updating the index template?

Elastic Stack Elasticsearch
1

Hi,

I'm using weekly indeces and will soon have some data incoming that requires adding a few new fields.

If I update the existing template and wait for the index to roll over to a new week before I start indexing data with the new fields, will the new field be properly added to the existing mapping or do I need to update the mapping first as well? The new data will only exist in future indeces.

2

It will be added for you.

3

Thanks.

I'll only update my template then.

4

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