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Amazon RDS for Oracle Now Supports the July 2026 Release Update!

AWS What's New ★★ View Markdown
#aws#infrastructure#devops

Hey, it's me, Shiichan! Today's pick from AWS What's New is one for anyone running Oracle on RDS.

AWS What's New aws.amazon.com

What was announced?

AWS What's New announced that Amazon RDS for Oracle now supports Oracle's July 2026 Release Update (RU). It covers these Oracle Database versions:

  • 19c
  • 21c
  • 26ai

The RU includes security fixes, so AWS recommends upgrading to it.

The story so far

This release also comes with a naming change. RUs for Oracle Database 19c now follow a new format, <version>.ru-<YYYY-MM>.mrp-<YYYY-MM>.r<N>. This July 2026 RU, for example, is named 19.0.0.0.ru-2026-07.mrp-2026-07.r1. Oracle Database 21c, on the other hand, keeps its existing naming format.

What changes

For 19c and 26ai, whenever Oracle ships a monthly Critical Security Patch Update (CSPU), Amazon RDS will bundle it with other recommended fixes and make it available as an MRP version — so you get a single version each month that already rolls in the latest security patch.

Dive Deep

You can apply this RU a few different ways:

  • Manually, from the Amazon RDS Management Console
  • Via the AWS SDK or CLI
  • Automatically, by enabling Automatic Minor Version Upgrade during your maintenance window

You can also use an AWS Organizations upgrade rollout policy to stage the rollout — apply it to non-production environments first, validate it, and then automatically apply the same update to production.

Wrap-up

  • Amazon RDS for Oracle now supports the July 2026 Release Update for Database versions 19c, 21c, and 26ai.
  • The RU naming format for 19c has changed (21c keeps its old format).
  • For 19c and 26ai, monthly CSPUs now arrive bundled as MRP versions.
  • You can apply it via the console, SDK/CLI, or Automatic Minor Version Upgrade.
  • An AWS Organizations upgrade rollout policy lets you stage the rollout from non-production to production.
  • Worth checking if you're a DBA or infra owner planning maintenance for Amazon RDS for Oracle.

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