- Added new APIs such as `buffer.blob.textStream()`, experimental ESM `import text` flag, `ReadableStreamTee`, and synchronous dgram socket methods (`connectSync`, `bindSync`).
- Enhanced networking/TLS: TCP keepalive interval/count options, `httpValidation` header validation, TLS group reporting, certificate compression support, and OpenSSL build config for compression.
- Implemented multiple crypto hardening updates (reject small‑order EdDSA points, support non‑byte WebCrypto lengths, cSHAKE, stricter key import validation) and added performance‑hooks sampling per event‑loop iteration.