My Week in Open Source: Python 3.15, Faster Django CMS, and a Stable Rust Release

October 9–16, 2026 This week, my open-source work ranged from interpreter compatibility across the django CMS ecosystem to performance improvements, security maintenance, and two major releases in the json2xml project. There were some satisfying milestones: json2xml 8.0.0, the first stable major release of its Rust accelerator, performance work landing in django CMS, and substantial django-filer improvements moving through review. There was also the less visible work that makes those milestones useful: fixing a test that could silently miss a failure, checking package metadata, reducing repeated database queries, and reviewing other maintainers’ changes. Here is what shipped, what moved forward, and what is still in progress. Python 3.15 across 24 repositories On October 13, I opened 26 Python 3.15-related pull requests across 24 repositories in the django CMS organisation. At the time of writing, 12 have merged and 14 remain open. The work spans django CMS itself, foundational…