chore(deps)(deps): bump effect from 3.19.19 to 3.21.0 in the effect-ecosystem group

[dependabot]

Bumps the effect-ecosystem group with 1 update: effect.

Updates effect from 3.19.19 to 3.21.0

Release notes

Sourced from effect's releases.

effect@3.21.0

Minor Changes

• #5780 f7bb09b Thanks @​kitlangton! - Add Cron.prev and reverse iteration support, aligning next/prev lookup tables, fixing DST handling symmetry, and expanding cron backward/forward test coverage.

• #5780 bd7552a Thanks @​mattiamanzati! - Add type-level utils to asserting layer types

• #5780 ad1a7eb Thanks @​schickling! - RcMap: support dynamic idleTimeToLive values per key

  The idleTimeToLive option can now be a function that receives the key and returns a duration, allowing different TTL values for different resources.

  const map =
    yield *
    RcMap.make({
      lookup: (key: string) => acquireResource(key),
      idleTimeToLive: (key: string) => {
        if (key.startsWith("premium:")) return Duration.minutes(10)
        return Duration.minutes(1)
      }
    })

• #5780 0d32048 Thanks @​mikearnaldi! - Fix annotateCurrentSpan, add Effect.currentPropagatedSpan

Patch Changes

• #5780 0d32048 Thanks @​mikearnaldi! - Add logs to first propagated span, in the following case before this fix the log would not be added to the p span because Effect.fn adds a fake span for the purpose of adding a stack frame.

  import { Effect } from "effect"
  const f = Effect.fn(function* () {
  yield* Effect.logWarning("FooBar")
  return yield* Effect.fail("Oops")
  })
  const p = f().pipe(Effect.withSpan("p"))

effect@3.20.1

Patch Changes

• #6133 add06f4 Thanks @​aniravi24! - Fix Equal.equals crash when comparing null values inside structuralRegion. Added null guard before Object.getPrototypeOf calls to prevent TypeError: Cannot convert undefined or null to object.

• #6093 a03b6a2 Thanks @​luchersou! - avoid class for PrettyError to preserve error.name

effect@3.20.0

Minor Changes

... (truncated)

Changelog

Sourced from effect's changelog.

3.21.0

Minor Changes

• #5780 f7bb09b Thanks @​kitlangton! - Add Cron.prev and reverse iteration support, aligning next/prev lookup tables, fixing DST handling symmetry, and expanding cron backward/forward test coverage.

• #5780 bd7552a Thanks @​mattiamanzati! - Add type-level utils to asserting layer types

• #5780 ad1a7eb Thanks @​schickling! - RcMap: support dynamic idleTimeToLive values per key

  The idleTimeToLive option can now be a function that receives the key and returns a duration, allowing different TTL values for different resources.

  const map =
    yield *
    RcMap.make({
      lookup: (key: string) => acquireResource(key),
      idleTimeToLive: (key: string) => {
        if (key.startsWith("premium:")) return Duration.minutes(10)
        return Duration.minutes(1)
      }
    })

• #5780 0d32048 Thanks @​mikearnaldi! - Fix annotateCurrentSpan, add Effect.currentPropagatedSpan

Patch Changes

• #5780 0d32048 Thanks @​mikearnaldi! - Add logs to first propagated span, in the following case before this fix the log would not be added to the p span because Effect.fn adds a fake span for the purpose of adding a stack frame.

  import { Effect } from "effect"
  const f = Effect.fn(function* () {
  yield* Effect.logWarning("FooBar")
  return yield* Effect.fail("Oops")
  })
  const p = f().pipe(Effect.withSpan("p"))

3.20.1

Patch Changes

• #6133 add06f4 Thanks @​aniravi24! - Fix Equal.equals crash when comparing null values inside structuralRegion. Added null guard before Object.getPrototypeOf calls to prevent TypeError: Cannot convert undefined or null to object.

• #6093 a03b6a2 Thanks @​luchersou! - avoid class for PrettyError to preserve error.name

3.20.0

... (truncated)

Commits

• 6e3782a Version Packages (#6135)
• f7bb09b Add Cron.prev reverse iteration support (#5786)
• bd7552a Add type-level utils to asserting layer types (#5920)
• ad1a7eb RcMap: support dynamic idleTimeToLive values per key (#5859)
• 0d32048 Add logs to first propagated span (#5710)
• 37a8af5 Version Packages (#6134)
• a03b6a2 fix(logger): use source maps for error stack traces in browser pretty logger ...
• 7d8fc1e docs(Layer): clarify scopedDiscard JSDoc to match effectDiscard (#5790)
• add06f4 fix(Equal): guard against null in structuralRegion comparison (#6133)
• aa47393 Version Packages (#6089)
• Additional commits viewable in compare view

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2 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
effect-patterns	Ignored	Preview	Mar 23, 2026 1:14pm
effect-patterns-mcp-server	Ignored	Preview	Mar 23, 2026 1:14pm