v1.2.0

v1.2.0

Query Store Enhancements

• Search/filter by identifier: Server-side fetch by Query ID, Plan ID, Query Hash, Plan Hash, Module Name with wildcard support (#93)
• History drill-down: Right-click "View History" opens multi-plan time-series chart with ScottPlot, 13 selectable metrics, hover tooltips (#98)
• Database picker on Query Store tab — switch databases without reopening (#93)
• Context menu copy commands: Copy Query ID, Plan ID, Query Hash, Plan Hash, Module Name, Query Text, Row (#94)
• Select All/None toggle button, Enter-to-fetch in search box

Bug Fixes

• Database picker now correctly changes query editor execution context (#95)
• Fix crash when loading Query Store plans — ObjectDisposedException in SetStatus (#105)

Code Quality (22 fixes)

• MCP session leak on plan tab close
• CancellationTokenSource disposal across all controls
• TextMate.Installation disposal
• Consolidated duplicate connection dialog code
• CLI: credential check, --output flag, input validation, .env support for query-store command
• Core: async disposal, KeychainCredentialService deadlock fix, ShowPlanParser error handling
• Removed dead QueryStoreDialog code

Contributors

Thanks to the community contributors in this release:

• @rferraton — reported and helped diagnose the SetStatus crash (#105, #106)
• @ClaudioESSilva — fix #81

Nightly Build (1.2.0-nightly.20260318)

Automated nightly build from dev branch.

Version: 1.2.0-nightly.20260318
Commit: f4f66ec
Built: 2026-03-18 06:32 UTC

These builds include the latest changes and may be unstable.
For production use, download the latest stable release.

v1.1.0

What's Changed

• Plan analyzer improvements by @erikdarlingdata in #65
• Plan viewer: edge tooltips, context menu, ManyToMany, DOP-aware rules by @erikdarlingdata in #66
• Advice for Humans UX polish: operator grouping, bars, colors, margins by @erikdarlingdata in #70
• Add nightly build workflow by @erikdarlingdata in #71
• Pass AnalysisResult through to AdviceContentBuilder by @erikdarlingdata in #72
• Fix false positive parallel skew warning at DOP 2 by @erikdarlingdata in #74
• Add recent plans menu and session restore by @erikdarlingdata in #75
• Format memory grants as KB/MB/GB by @erikdarlingdata in #76
• Bump version to 1.1.0 by @erikdarlingdata in #77
• Release v1.1.0 by @erikdarlingdata in #78

Full Changelog: v1.0.0...v1.1.0

v1.0.0

What's Changed

• Add syntax highlighting to Advice for Humans window by @erikdarlingdata in #47
• Fix macOS release packaging to use proper .app bundle by @erikdarlingdata in #51
• Fix Linux crash and plan execution timeout by @erikdarlingdata in #52
• Execute selection, from cursor, and current batch (#53) by @erikdarlingdata in #54
• Fix nullable databaseName in ActualPlanExecutor by @erikdarlingdata in #55
• Issue #48: Advice window styling, operator timing, rules, UI consistency by @erikdarlingdata in #56
• Add Check for Updates to About window by @erikdarlingdata in #57
• Root tooltip cleanup, seek predicate formatting, row goal filter by @erikdarlingdata in #58
• Plan viewer: own-time rendering, efficiency colors, wait stats polish by @erikdarlingdata in #59
• Expand test suite with 10 new tests and fixture plans by @erikdarlingdata in #60
• Fix exchange operator timing and add stream labels by @erikdarlingdata in #61
• UX polish: advice, warnings, efficiency, node rendering by @erikdarlingdata in #62
• v1.0.0: Bug fixes and version bump by @erikdarlingdata in #63
• Release v1.0.0 by @erikdarlingdata in #64

Full Changelog: v0.9.0...v1.0.0

v0.9.0

What's Changed

• Fix obsolete clipboard warnings by @erikdarlingdata in #39
• Show all plan warnings in root operator tooltip by @erikdarlingdata in #40
• Add Server Context pane to Plan Insights by @erikdarlingdata in #41
• Fix/query store grid usability by @ClaudioESSilva in #18
• Fix warnings gap in properties panel (#29) by @erikdarlingdata in #42
• Add MCP copy button to About screen (#26) by @erikdarlingdata in #43
• Show loading placeholder tab for Run Repro Script (#24) by @erikdarlingdata in #44
• Bump version to 0.9.0 by @erikdarlingdata in #45
• Release v0.9.0 by @erikdarlingdata in #46

New Contributors

• @ClaudioESSilva made their first contribution in #18

Full Changelog: v0.8.2...v0.9.0

v0.8.2

What's Changed

• Add auto-release workflow on dev-to-main merge by @erikdarlingdata in #12
• Add PR branch check and version bump check by @erikdarlingdata in #13
• Add THIRD_PARTY_NOTICES.md, update README by @erikdarlingdata in #19
• Add screenshots to README by @erikdarlingdata in #21
• Update README screenshot descriptions by @erikdarlingdata in #25
• Fix MCP transport type: streamable-http → http by @erikdarlingdata in #27
• Add MCP integration screenshot to README by @erikdarlingdata in #28
• Add operator tooltip and properties screenshots by @erikdarlingdata in #30
• Add multi-statement navigation screenshot by @erikdarlingdata in #31
• Bump version to 0.8.1 by @erikdarlingdata in #32
• Release v0.8.1 — Screenshots, docs, workflow improvements by @erikdarlingdata in #33
• Fix release workflow: build and upload in single workflow by @erikdarlingdata in #34
• Release v0.8.1 — Fix release workflow, screenshots, docs by @erikdarlingdata in #35
• Fix release workflow: add shell: bash for non-PowerShell steps by @erikdarlingdata in #36
• Bump version to 0.8.2 by @erikdarlingdata in #37
• Release v0.8.2 — Screenshots, docs, release automation fix by @erikdarlingdata in #38

Full Changelog: v0.8.0...v0.8.2

v0.8.0 — MCP Server for AI-Assisted Plan Analysis

What's New

MCP Server

Performance Studio now includes a built-in Model Context Protocol (MCP) server, enabling AI assistants like Claude to analyze execution plans loaded in the app.

13 read-only tools for plan analysis:

• list_plans, analyze_plan, get_plan_summary, get_plan_warnings
• get_missing_indexes, get_plan_parameters, get_expensive_operators
• get_plan_xml, compare_plans, get_repro_script
• get_connections, check_query_store, get_query_store_top

Query Store tools use only the built-in fetch query — no arbitrary SQL execution.

Setup:

1. Enable in ~/.planview/settings.json: { "mcp_enabled": true, "mcp_port": 5152 }
2. Add to your MCP client config:

   {
     "mcpServers": {
       "performance-studio": {
         "type": "streamable-http",
         "url": "http://localhost:5152/"
       }
     }
   }

Other Changes

• Renamed from "SQL Performance Studio" to "Performance Studio"
• MCP enable/port toggle added to Help > About screen
• Release automation: zips now auto-attach to GitHub releases

v0.7.0

SQL Performance Studio v0.7.0

New Features

• Parameters & Variables pane in Plan Insights — shows parameter names, data types, compiled values, and runtime values with parameter sniffing detection
• Spool labels — Eager/Lazy qualifier now shown on spool operators in the graphical plan
• Editor context menu — Cut, Copy, Paste, Select All in the query editor

Downloads

Platform	File
Windows (x64)	PerformanceStudio-win-x64.zip
macOS (Apple Silicon)	PerformanceStudio-osx-arm64.zip
macOS (Intel)	PerformanceStudio-osx-x64.zip
Linux (x64)	PerformanceStudio-linux-x64.zip
SSMS Extension	PlanViewer.Ssms.vsix + InstallSsmsExtension.exe

Self-contained — no .NET SDK required. Extract and run.