Promise resolvers no longer keep resolved Promises alive (
74567b2)
V8 now stores a single Promise|Undefined slot instead of separate promise/already-resolved fields for resolving functions. That lets the GC collect a resolved Promise even if its resolver callbacks are still reachable, reducing accidental retention.
V8 promise reject/resolve-after-resolved APIs are removed (32ae06e)
This backport removes the deprecated runtime hooks and public V8 API entries for PromiseRejectAfterResolved / PromiseResolveAfterResolved, and updates internal callers to return undefined instead. It’s a cleanup ahead of full removal of these events, so embedders should stop relying on them.
Configure can now inject an emulator for build tools (
b087e92)
A new --emulator configure option threads an emulator command through GYP so host-built helpers like mksnapshot, torque, and other generated-action binaries can run under emulation during cross-platform builds. This addresses a real build constraint for targets whose helper binaries can’t execute natively on the build machine.
X.509 parser now handles large RSA exponents (
652d033)
GetExponentString() no longer truncates or returns null for RSA public exponents that don’t fit in a single machine word; it now prints the full big integer via OpenSSL. That fixes certificate parsing for unusual but valid keys.
DH generator validation fixes very large values (6bda0ab)
The DH generator check is adjusted so very large generators aren’t misclassified by std::optional ordering quirks. This prevents valid large values from being rejected during crypto parameter validation.
