# RetrieX Patch 28 - Language Cleanup Documentation

Purpose: document the new Language Cleanup Profile ownership rules for RetrieX 1.5.3+.

Changes:

- adds `RETRIEX_LANGUAGE_CLEANUP_GUIDE.md`
- extends `DEVELOPER_POLICIES.md` with language cleanup ownership rules
- no runtime code changes
- no YAML value changes
- no list deletion

Install:

```bash
unzip -o p28.zip -d /path/to/retriex
cd /path/to/retriex
bin/console mto:agent:config:validate
bin/console mto:agent:regression:test
bin/console mto:agent:config:audit-source --details
bin/console mto:agent:config:audit-patterns --details
```