[chore] cherry-pick 1.2.x changelog/README with backported JRuby 10.0 compatibility

Author: chadlwilson

CHANGELOG.md

@@ -1,7 +1,6 @@
 ## 1.3.0 (UNRELEASED) 
 
 - Officially support Javax Servlet API 4.0 (JEE 8)
-- Officially support JRuby 10.0
 
 Breaking compatibility changes
 - Drop support for JRuby 9.3
@@ -33,6 +32,7 @@ Breaking configuration capability changes
 
 ## 1.2.7 (UNRELEASED)
 
+- Fix compatibility with JRuby 10.0 and Rails 8.0 (#419)
 - Fix ability to include and forward to JSPs under Rails (#370)
 - Update (bundled) rack to 2.2.23 (#417)
 

README.md

@@ -17,7 +17,7 @@ For more information on Rack, visit http://rack.github.io/.
 |----------------------------------------------------------------|---------------|-----------|------------|------|-----------|---------------------|----------------------------------------------------------------|
 | **2.0 (_planned_, _unreleased_)**                              | Dev           | 2.2       | 9.4 → 10.0 | 8+   | 7.0 → 8.0 | 5.0+ (Jakarta EE 9) | ❌ Servlet < 5.0 containers will not work                       |
 | **1.3 (master, _unreleased_)**                                 | Dev           | 2.2       | 9.4 → 10.0 | 8+   | 7.0 → 8.0 | 4.0 (Java EE 8)     | ✅ _Unofficial_: Servlet 2.5 → 3.1 & Rails 6.1 likely working   |
-| [**1.2**](https://github.com/jruby/jruby-rack/tree/1.2-stable) | Maintained    | 2.2       | 9.3 → 9.4  | 8+   | 5.0 → 7.2 | 3.0 (Java EE 6)     | ✅ _Unofficial_: Servlet 3.1 → 4.0 also OK with most containers |
+| [**1.2**](https://github.com/jruby/jruby-rack/tree/1.2-stable) | Maintained    | 2.2       | 9.3 → 10.0 | 8+   | 5.0 → 8.0 | 3.0 (Java EE 6)     | ✅ _Unofficial_: Servlet 3.1 → 4.0 also OK with most containers |
 | [**1.1**](https://github.com/jruby/jruby-rack/tree/1.1-stable) | EOL @ 2024-05 | 1.x → 2.2 | 1.6 → 9.4  | 6+   | 2.1 → 5.2 | 2.5 (Java EE 5)     | ✅ _Unofficial_: Servlet 3.0 → 4.0 also OK with most containers |
 | [**1.0**](https://github.com/jruby/jruby-rack/tree/1.0.10)     | EOL @ 2011-11 | 0.9 → 1.x | 1.1 → 1.9  | 5+   | 2.1 → 3.x | 2.5 (Java EE 5)     |                                                                |