Hi all,
Release Notes: https://cubewisecare.atlassian.net/wiki/spaces/CS/pages/926810117/Arc+and+Slice+-+5.3.0
Downloads
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Slice download page: https://code.cubewise.com/downloads/slice-download/
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Arc download page: https://code.cubewise.com/downloads/arc-download/
Arc & Slice 5.3.0 is here! 
This release is all about helping TM1 developers spend less time on repetitive tasks and more time building.
What’s new:
Rules Editor grouping — Large rule files just got easier to manage. Three new view modes (Default, Split, and Region) let you navigate and cross-reference rules and feeders without losing your place. This feature requires Arc+.
ODBC schema visibility — No more switching between tools. The ODBC editor now displays your full database schema — tables, columns, and structure — right inside Arc.
Bulk ODBC connection management — Need to update datasource details across multiple TI processes? Select them, click Edit, and update in one go. Done.
DefineCalc in Slice — Define calculated members directly in your Excel worksheets for more powerful, flexible reporting.
Plus 16 enhancements and 19 fixes across the Subset Editor, Export Data, Report Burster, and more.
Full release notes: https://cubewisecare.atlassian.net/wiki/spaces/CS/pages/926810117/Arc+and+Slice+-+5.3.0