docs: update changelog and version for v1.11.0rc1

docs/en/changelog.mdx

@@ -4,6 +4,29 @@ description: "Product updates, improvements, and bug fixes for CrewAI"
 icon: "clock"
 mode: "wide"
 ---
+<Update label="Mar 15, 2026">
+  ## v1.11.0rc1
+
+  [View release on GitHub](https://github.com/crewAIInc/crewAI/releases/tag/1.11.0rc1)
+
+  ## What's Changed
+
+  ### Features
+  - Add Plus API token authentication
+  - Implement plan execute pattern in A2A
+
+  ### Bug Fixes
+  - Resolve code interpreter sandbox escape issue
+
+  ### Documentation
+  - Update changelog and version for v1.10.2rc2
+
+  ## Contributors
+
+  @Copilot, @greysonlalonde, @lorenzejay, @theCyberTech
+
+</Update>
+
 <Update label="Mar 14, 2026">
   ## v1.10.2rc2