[AaronFeledy]

MySQL 8.2 removed expire_logs_days, but the recipe's MySQL 8 config still sets it, so mysql:8.2, 8.3 and 8.4 abort on startup with unknown variable 'expire_logs_days=10'. The bare mysql:8 alias (MySQL 8.4.5) was also loading the 5.7 config file and failing on query_cache_limit.

• Replace expire_logs_days = 10 with binlog_expire_logs_seconds = 864000: same 10 days, supported since MySQL 8.0.1
• Send mysql:8 to the MySQL 8 config
• Add examples/acquia-mysql84 on mysql:8 to CI

Verified locally on Lando 3.26.9: lando start with database: mysql:8 boots MySQL 8.4.5 with the MySQL 8 config and binlog_expire_logs_seconds=864000.

Same bug as lando/laravel#114.

---

Note

Medium Risk
Changes default database config selection and MySQL 8 server settings, which can affect any Acquia app using mysql:8 or 8.x images at startup.

Overview
Fixes MySQL 8.2+ and mysql:8 startup failures in the Acquia recipe by aligning config selection and binlog settings with current MySQL behavior.

In config/mysql8.cnf, expire_logs_days is replaced with binlog_expire_logs_seconds = 864000 (equivalent 10-day retention) so MySQL 8.2+ no longer errors on the removed variable. In builders/acquia-base.js, the MySQL 8 config file is chosen when the version string starts with 8 (not only 8.), so the bare mysql:8 alias gets mysql8.cnf instead of the 5.7 mysql.cnf.

CI adds the acquia-mysql84 Leia example (database: mysql:8) and pins lando/run-leia-action to 1.0.0-beta.4. The changelog documents both fixes.

^{Reviewed by Cursor Bugbot for commit 011e20b. Bugbot is set up for automated code reviews on this repo. Configure here.}

[netlify]

✅ Deploy Preview for lando-acquia ready!

Name	Link
🔨 Latest commit	011e20b
🔍 Latest deploy log	https://app.netlify.com/projects/lando-acquia/deploys/6ad0bbdc496b284482c915a1
😎 Deploy Preview	https://deploy-preview-169--lando-acquia.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 81 (🔴 down 12 from production) Accessibility: 98 (no change from production) Best Practices: 100 (no change from production) SEO: 92 (no change from production) PWA: - View the detailed breakdown and full score reports
🤖 Make changes	Run an agent on this branch

---

To edit notification comments on pull requests, go to your Netlify project configuration.