npm / croner

croner

What changed in croner 10, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-18.

3 breaking1 deprecations14 new APIs and options1 behavior and defaults5 fixes and other

See which of these apply to your code, ranked, in your agent:

npx @unstale/cli init

croner 1024 changes

The ? character now acts as a wildcard alias for *, rather than substituting current time values.
10.0.0release notes
The minimum supported Deno version increased from 1.16 to 2.0.
10.0.0release notes
Range parsing is strict by default; legacy non-standard stepping syntax requires sloppyRanges: true.
10.0.0release notes

legacyMode is deprecated in favor of domAndDow but remains supported.
10.0.0release notes

Enable Quartz-style weekday numbering, with Sunday as 1 and Saturday as 7.
10.0.0release notes
The + modifier enables explicit AND logic for matching days.
10.0.0release notes
The + modifier provides explicit AND logic for day matching.
10.0.0release notes
Offset scheduled dates by days before or after pattern matches.
10.0.0release notes
Use domAndDow to select day-of-month and day-of-week matching logic in place of legacyMode; legacyMode remains supported.
10.0.0release notes
Return the original run-once date for date-based jobs.
10.0.0release notes
Check whether a date matches a cron pattern.
10.0.0release notes
The @midnight pattern nickname is supported.
10.0.0release notes
Control expected pattern field counts and how seconds and years are handled, with automatic, fixed, or flexible modes.
10.0.0release notes
Enumerate past scheduled execution times, complementing nextRuns.
10.0.0release notes
The @reboot pattern nickname is supported.
10.0.0release notes
Enable relaxed, backward-compatible non-standard range and stepping syntax.
10.0.0release notes
The W modifier schedules for the nearest weekday to a specified date.
10.0.0release notes
Seven-field patterns can specify an optional year from 1 to 9999, restricting scheduled runs to that year.
10.0.0release notes

Patterns accept leading and trailing whitespace and consecutive whitespace.
10.0.0release notes

Fixed the distribution structure and TypeScript issues in the distributed version of 10.0.0.
10.0.1release notes
A cron job no longer stops when the catch callback throws with protect enabled.
10.0.0release notes
Fixes prevent rapid-fire execution during timezone transitions and hour skipping during local DST transitions with UTC.
10.0.0release notes
getPattern() no longer returns the wrong value for date-based jobs.
10.0.0release notes
L and W modifiers in cron patterns are case-insensitive.
10.0.0release notes