npm / @blackwell-systems/gcf
@blackwell-systems/gcf
What changed in @blackwell-systems/gcf 2, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-19.
2 breaking2 new APIs and options2 behavior and defaults1 fixes and other
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli init@blackwell-systems/gcf 27 changes
Breaking changes 2
The default encode path writes a scalar shared by every record of a top-level tabular array once in the header and drops it from rows; decoding support is mandatory.
A double at or above 2^53 renders in exponent notation to align formatting with the numeric domain.
New APIs and options 2
Adds opt-in value-grouping for a keyed set by a low-cardinality column; decoding support is mandatory.
Adds a decode option for in-domain integers beyond JavaScript’s 2^53 safe range, with
erroras the default andstring,bigint, ornumberalternatives.
Behavior and default changes 2
A
bigintis accepted and serialized on encode.Integers use signed int64 and non-integers use IEEE-754 double; integer literals decode exactly, and values outside int64 are rejected on decode and encode.
Fixes and other changes 1
Quoted keys containing
[alongside an array value now round-trip; the decoder locates the array count bracket after the closing quote.