Create 2025-08-29-terraform-v5.9-provider.mdx

[KaydeeDee]

TF 5.9.0 release changelog

Summary

changelog for TF 5.9

Documentation checklist

• [X ] Is there a changelog entry (guidelines)? If you don't add one for something awesome and new (however small) — how will our customers find out? Changelogs are automatically posted to RSS feeds, the Discord, and X.
• [ X] The documentation style guide has been adhered to.
• [ X] If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.

[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/changelog/	@cloudflare/pm-changelogs, @cloudflare/pcx-technical-writing

[github-actions]

Preview URL: https://91882959.preview.developers.cloudflare.com
Preview Branch URL: https://kaydeedee-patch-1.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/changelog/2025-08-29-terrform-v59-provider/	https://kaydeedee-patch-1.preview.developers.cloudflare.com/changelog/2025-08-29-terrform-v59-provider/

[github-actions]

Hey there, this pull request has been automatically marked as stale because it has not had recent activity. It will be auto-closed after and additional 10 days of inactivity. If you need it open for longer, add the label stale-exempt.