# Migration to Clarion 12 (build 14000) for Legacy templates + SQL Server: Any real performance gains?

**URL:** <https://clarionhub.com/t/migration-to-clarion-12-build-14000-for-legacy-templates-sql-server-any-real-performance-gains/9239>\
**Category:** questions\
**Tags:** mssql, c12\
**Created:** [July 21, 2026, 12:25pm UTC](https://clarionhub.com/t/migration-to-clarion-12-build-14000-for-legacy-templates-sql-server-any-real-performance-gains/9239 "2026-07-21T12:25:02Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jslarve](https://clarionhub.com/letter_avatar_proxy/v4/letter/j/e480ec/32.png) [@jslarve](https://clarionhub.com/u/jslarve)\
**Post date:** [July 21, 2026, 1:14pm UTC](https://clarionhub.com/t/migration-to-clarion-12-build-14000-for-legacy-templates-sql-server-any-real-performance-gains/9239/2 "2026-07-21T13:14:23Z")

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I don’t have any insight about performance improvements, but I think folks are keeping an eye out for a fix for this issue. [Memory leak with TIMER](https://clarionhub.com/t/memory-leak-with-timer/9190)

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