This release enhances the sort function with custom comparators and descending order support, and extends the slice function to work with lists.
🚀 Features
Section titled “🚀 Features”Slice function extended to support lists
Section titled “Slice function extended to support lists”Feb 22, 2026 · @mavam, @codex · #5819
The slice function now supports list types in addition to string. You can slice lists using the same begin, end, and stride parameters. Negative stride values are now supported for lists, letting you reverse or step backward through list data. String slicing continues to require a positive stride.
Example usage with lists:
[1, 2, 3, 4, 5].slice(begin=1, end=4)returns[2, 3, 4][1, 2, 3, 4, 5].slice(stride=-1)returns the list in reverse order[1, 2, 3, 4, 5].slice(begin=1, end=5, stride=-2)returns[5, 3]
Enhance sort function with desc and cmp parameters
Section titled “Enhance sort function with desc and cmp parameters”Feb 17, 2026 · @mavam, @codex · #5767
The sort function now supports two new parameters: desc for controlling
sort direction and cmp for custom comparison logic via binary lambdas.
Sort in descending order:
from {xs: [3, 1, 2]}select ys = sort(xs, desc=true){ys: [3, 2, 1]}Sort records by a specific field using a custom comparator:
from {xs: [{v: 2, id: "b"}, {v: 1, id: "a"}, {v: 2, id: "c"}]}select ys = sort(xs, cmp=(left, right) => left.v < right.v){ ys: [ {v: 1, id: "a"}, {v: 2, id: "b"}, {v: 2, id: "c"}, ],}The cmp lambda receives two elements and returns a boolean indicating whether
the first element should come before the second. Both parameters can be combined
to reverse a custom comparison.
🐞 Bug Fixes
Section titled “🐞 Bug Fixes”Fix read_lines operator for old executor
Section titled “Fix read_lines operator for old executor”Feb 17, 2026 · @tobim
The read_lines operator was accidently broken while it was ported
to the new execution API. This change restores its functionality.
HTTP header values can contain colons
Section titled “HTTP header values can contain colons”HTTP header values containing colons are now parsed correctly.