jfx26u open for JavaFX 26.0.1 backports

[Kevin Rushforth]

All,

The jfx26u repo [1] is now open for JavaFX 26.0.1 backports (the April 
2026 CPU release), with approval from one of the project leads. The 
general criteria is that we want to backport fixes for regressions 
introduced in JavaFX 26, third-party library updates, and a limited 
number of other important bug fixes. In most cases we'd like to see the 
fix "bake" in the mainline for a while before being backported to jfx26u.

NOTE: Only those fixes that will NOT be backported to the jfx26 [2] 
stabilization branch are candidates for backporting to jfx26u. A 
backport intended for the JavaFX 26 code line will go into either the 
jfx26 branch (for the GA release of JavaFX 26) or the jfx26u repo (for a 
JavaFX 26.0.x update release), not both.

We use a similar procedure for making the request and noting the 
approval as is used by the JDK updates releases -- by using JBS labels 
to request a backport and indicate approval or rejection.

Here is the procedure:

1. If you are not sure whether something is a good candidate for 
backporting, ask on the mailing list or in the PR you want to backport.

2. Create the backport PR for jfx26u, either manually or using the 
"/backport" command. You can use Skara's "/approval" command to request 
approval. Skara will not mark a jfx26u PR as ready until approved.

Let Johan or me know if you have any questions.

Thanks.

-- Kevin

[1] https://github.com/openjdk/jfx26u
[2] https://github.com/openjdk/jfx/tree/jfx26