GitHub Copilot had its most update-packed year in 2025—Agent mode, multi-file editing, a free tier. Whether that changes its position against Cursor and Claude Code depends on whether it is still treated as autocomplete. Agent mode can edit files and run tests; Workspace puts the environment in a browser.
2025’s most notable story wasn’t any single new model launch—it was engineering practices finally catching up to tool velocity. Cursor, Claude Code, MCP, Devin—the landscape has settled.
Production Python locks the interpreter and pyproject.toml before talking about asyncio or speed. Types, tests, and a lockfile are the default, not extras. No “faster” or “production-grade” without a measured comparison.
Indexing in MongoDB is not a checklist item. It is an operating tradeoff. Every useful index improves some reads and makes some writes more expensive. Good indexes come from real query patterns, not from indexing every field that looks important.
Most Docker security incidents aren’t hackers discovering 0days—someone forgot to disable privileged mode, ran as root, or exposed unnecessary ports.
This is a practical checklist, not theory. Straight to what to check.
TypeScript’s support policy: 24 months per major version.
Currently (2025):
Recommendation: new projects use latest, old projects upgrade minor version by minor version—no jumping versions.
