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Add deprecation notice for geoip plugin's behavior of 0 (#7740)

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This PR add a deprecation noticed for geoip plugin's upcoming
behavior change of 0. Please see PR #7732 for details.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
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Yong Tang
2025-12-09 03:44:03 -08:00
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@@ -13,6 +13,12 @@ initialization. Plugin updates improve forwarder reliability, extend GeoIP schem
and fix issues in secondary, nomad, and kubernetes. Cache and file plugins also receive
targeted performance tuning.
Deprecations: The GeoIP plugin currently returns 0 for missing latitude/longitude, even though
0,0 is a real location. In the next release, this behavior will change: missing coordinates
will return an empty string instead. This avoids conflating “missing” with a real coordinate.
Users relying on 0 as a sentinel value should update their logic before this change takes effect.
See PR #7732 for reference.
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