[Release Checklist] WSO2 Integrator: BI 1.5.3

[kanushka]

Description

This issue tracks all the changes to be verified prior to the WSO2 Integrator: BI 1.5.3 release.

Please mark the checkbox once the corresponding change has been verified.

Extension

@axewilledge

• Add sample download functionality and new BI Samples view vscode-extensions#1008

@dan-niles

• Add support for inserting multi-modal documents via the helper pane vscode-extensions#893
• Disable preview mode in model provider prompt field vscode-extensions#1023

@KCSAbeywickrama

• [BI Data Mapper] Add support for the join clause vscode-extensions#969
• [BI Data Mapper] Improve completion support - frontend changes for expression bar vscode-extensions#898
• [BI Data Mapper] Improve completion support - frontend changes for clause editor form vscode-extensions#956
• [BI Data Mapper] Re-enable array aggregating option in array mappings with type based aggregate options support  vscode-extensions#879
• [BI Data Mapper] Group by clause support for the Data mapper in frontend UI vscode-extensions#897
• [BI Data Mapper] Fix expression bar focussing issues vscode-extensions#998
• [Data Mapper - Inline] Fix undo button not working in data mapper vscode-extensions#1014
• [BI Data Mapper] Update ErrorBoundary to include correct issue URLs vscode-extensions#1007
• [BI Data Mapper] Add refresh button vscode-extensions#1016
• [BI Data Mapper] Fix crash when clear all mappings while in inside a focused view vscode-extensions#1020
• Remove undo/redo functionality from DataMapperHeader component vscode-extensions#1025

@sachiniSam

• Improvements in Record Constrcut View vscode-extensions#1002

@senithkay

• Fix consecutive chips margins vscode-extensions#1000
• fix expression overflow in record config model vscode-extensions#1004
• fix helper pane overflow from editor right when opened through toggle button vscode-extensions#1001

@tharindulak

• Downgrade express to version 4.21.2 to fix CVE-2025-13466 vulnerability vscode-extensions#1005
• Remove low severity ai Package vulnerability from .trivyignore file vscode-extensions#1006

@VellummyilumVinoth

• [AI Datamapper] Fix check error handling and output formatting vscode-extensions#877
• [AI Datamapper] Fix mapping compilation error fields vscode-extensions#904
• [AI Datamapper] Fix crash when LLM returns no mappings vscode-extensions#1024

Language Server

@pasindufernando1

• Bump http/ kafka versions ballerina-platform/ballerina-language-server#553
• Resolve circular recursions in dependent type validation ballerina-platform/ballerina-language-server#552
• Handle queries wrapped in sub mappings in Mappings API ballerina-platform/ballerina-language-server#555

@nipunayf

• Only visit the type cast method when it has the ai module prefix ballerina-platform/ballerina-language-server#549
• Fix the node template API failure when the name contains escaped characters ballerina-platform/ballerina-language-server#550

[kanushka]

Since there are not -1s,
Publishing extensions patch versions to the VSCode marketplace