Guru: Access Client Solutions 1.1.9.11 – Security First, With Continued Investment In SQL Tooling
January 26, 2026 Gregory Simmons
Big Blue has released IBM i Access Client Solutions (ACS) version 1.1.9.11, and while the release is anchored by an important security fix, it also reflects IBM’s continued investment in the SQL tooling that has become central to day-to-day IBM i development and administration. This is not a feature-heavy update on its own, but it arrives after a series of releases that have steadily expanded the usefulness of both Run SQL Scripts and SQL Performance Center.
The primary driver for upgrading to ACS 1.1.9.11 is the remediation of CVE-2025-66516, an XML External Entity vulnerability related to how ACS processes certain …
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