RFR: 8316135: Create release notes for JavaFX 21

[Abhinay Agarwal]

On Tue, 12 Sep 2023 17:31:23 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> doc-files/release-notes-21.md line 13:
>> 
>>> 11: ### JavaFX Requires macOS 11 or Later
>>> 12: 
>>> 13: On Mac platforms, JavaFX 21 requires macOS 11 or later. An exception will be thrown when initializing the JavaFX runtime on older versions of macOS.
>> 
>> just curious: all these lists (CSRs, Enhancements, Bug Fixes) are compiled from JBS, correct?
>
> Yes, although there is no list of CSRs. The first section includes issues tagged with "release-note=yes". The list of enhancements and bugs are from the following JBS filter:
> 
> [FX 21 RN Issues](https://bugs.openjdk.org/issues/?filter=44607)

Why are [8305885](https://bugs.openjdk.org/browse/JDK-8305885) and [8304290](https://bugs.openjdk.org/browse/JDK-8304290) not included in release notes?

Are issues JDK-8301022, JDK-8301712, JDK-8302294, JDK-8302684, JDK-8303217, JDK-8303748 not included because they were introduced and fixed in the same version?

Lastly, I was of the opinion that backports are not a part of the release notes, but it seems that [JDK-8313324](https://bugs.openjdk.org/browse/JDK-8313324) is still added?

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PR Review Comment: https://git.openjdk.org/jfx/pull/1239#discussion_r1323536706