docs: 3.9 release notes (#32206)
docs: 3.9 release notes (#32206)

* placeholder for 3.9 release notes

* Update index.md

* Update with SSR support

* Update index.md

* update release notes

Co-authored-by: Lennart <074ba1c0efc36927866875b17be4fa06eb80e472@gmail.com>
Co-authored-by: Ward Peeters <f7d6f8166205aa91930091f422c0634df8a7ceb4@coding-tech.com>
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