Release Notes - v2.8.42

Date: 2026-05-25

📝 Executive Summary

2.8.42 2026-05-25

- chore: bump version to 2.8.42.
- fix: resolve invalid login credentials error by defaulting to root when only --pass is set and escaping single quotes in passwords (#781).
- fix: resolve fake aborted connections count increase during password strength checks (#900).
- fix: resolve EOF metadata corruption and duplicated configurations in Emacs block (#904).
- fix: prevent plaintext password leakage in weak password diagnostic messages.
- fix: implement symlink verification and atomic writes for aborted connects state file protection.
- fix: append transport-specific host and container identifiers in state file path to prevent collisions.
- test: strengthen authentication plugin checks and add verification suite for state file protections.
- ci: optimize release notes generation to isolate branch changes.
- perf: optimize --dumpdir performance by excluding heavy RDS/Aurora and internal metrics.
- docs: improve authentication plugins algorithm labels and resolve absolute documentation links.
- refactor: catch explicit exception classes in build/release_gen.py to prevent masking system signals.

📈 Diagnostic Growth Indicators

🧪 New Diagnostic Capabilities

ℹ️ New Information Points

• SKIPPING $info_pf_table
• SKIPPING $info_s_table

🛠️ Internal Commit History

• refactor: consolidate recommendation reporting into generalrec and update documentation and tests (a9bfc42)
• docs: update changelog and release notes for v2.8.42 (9e558a0)
• docs: finalize changelog and release notes for v2.8.42 (81efefb)
• ci: optimize release notes generation to isolate branch changes (0bcf8bc)
• docs: sync changelog, release notes, memory database and add tests for v2.8.42 (e2a8bd8)
• docs: generate FEATURES.md (54b803c)
• style: tidy mysqltuner.pl (933038c)
• docs: update v2.8.42 release notes and optimize dumpdir exclusions (57b5e6e)
• chore: prepare release v2.8.42 (0a0aaeb)

⚙️ Technical Evolutions

✅ Laboratory Verification Results

• Automated TDD suite passed.
• Multi-DB version laboratory execution validated.
• Performance indicator delta analysis completed.

Deliverables

Standalone Script & Data

Docker Images

docker pull jmrenouard/mysqltuner:2.8.42

Checksums (.sha256) are available in the assets list below.