Backend
MediumEvaluate
Node.js 26 enables the Temporal date/time API by default
Node 26 ships the Temporal API on by default and upgrades to V8 14.6, with LTS arriving in October 2026.
SeniorStaffPrincipal
Source ↗Engineering Radar
#runtime
2 signals tagged runtime
Backend
HighEvaluate
Python 3.14 makes free-threaded (no-GIL) Python officially supported
The GIL-free build graduates from experimental to officially supported in Python 3.14, with the single-threaded penalty down to ~5–10% — the biggest change to Python's concurrency model in decades.
SeniorStaffPrincipal
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