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@tmokmss tmokmss commented Dec 15, 2025

Issue #, if available:

closes #101

Description of changes:

Resulting from #100, existing users are experiencing deployment failures because Aurora automatically upgrades minor version to the latest default minor version (15_12 currently), and CFn tries to downgrade the version to 15_10.

To prevent the error, this PR upgrades Postgres to 15_12 (current default minor version). Additionally, to prevent possible future similar problems, we disable autoMinorVersionUpgrade as well.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

@tmokmss tmokmss merged commit a4314b7 into main Dec 15, 2025
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@tmokmss tmokmss deleted the fix-deploy-error branch December 15, 2025 08:12
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Aurora PostgreSQL automatic minor version upgrade causes deployment failure

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