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Set effect, @effect/platform-node, @effect/vitest, @effect/sql-pg to 4.0.0-beta.78 in all packages; bump effect/@effect/platform-node peer ranges to ^4.0.0-beta.78. Remove @effect/platform, @effect/cli, @effect/sql (merged into core effect in v4). Bump @effect/language-service to ^0.86.2. Per-package source migration follows; tsc -b stays red until it completes. Generated with AI Co-Authored-By: AI <ai@example.com>
Context.Tag→Context.Service (+ Tag.Service type → ["Service"]); TaggedError→ TaggedErrorClass; Schema.Defect→Schema.Defect(); Schema.transform→decodeTo+ SchemaTransformation.transform (Schema.Schema<A,E>→Schema.Codec<A,E>); Layer.scoped→Layer.effect; Stream.asyncPush→Stream.callback (Queue emit). Tests: it.scoped→it.effect, Stream.runCollect now returns Array, Chunk.unsafeGet →getUnsafe, Schema.Schema.Encoded→Schema.Codec.Encoded. Generated with AI Co-Authored-By: AI <ai@example.com>
TaggedError→TaggedErrorClass; Schema.Defect→Schema.Defect(); Context.Tag→Context.Service; Layer.scoped→Layer.effect. Generated with AI Co-Authored-By: AI <ai@example.com>
Layer.scoped→Layer.effect. Generated with AI Co-Authored-By: AI <ai@example.com>
Doc comment it.scoped→it.effect; no API changes (Layer/ManagedRuntime stable). Generated with AI Co-Authored-By: AI <ai@example.com>
Context.Tag→Context.Service; FileSystem from effect barrel; optionalWith(default) →withDecodingDefaultType+withConstructorDefault; Schema.Schema.Any→Schema.Top. SchemaAST walkers updated for v4: TypeLiteral→Objects, *Keyword→bare tags, TupleType→Arrays (rest holds ASTs), ps.isOptional→ps.type.context.isOptional, field annotations on ps.type.annotations. Tests: .annotations→.annotate, NodeContext→NodeServices, Effect.either→Effect.result (Left→Failure). Generated with AI Co-Authored-By: AI <ai@example.com>
CLI: @effect/cli→effect/unstable/cli, Options→Flag (text→string), Command.run
now returns the effect directly (reads args from Stdio; config {version} only),
provided via NodeServices.layer. NodeContext→NodeServices. Either→Result
(no Result.try → inline try/catch; onLeft/onRight→onFailure/onSuccess).
TaggedError→TaggedErrorClass; Literal(multi)→Literals; Union(multi)→Union([]);
Schema.Schema.Any→Schema.Top. Codegen templates now emit v4 Schema
(transform→decodeTo+SchemaTransformation.transform, compose→pipe(decodeTo));
unit-test assertions updated to match. Tests: it.scoped→it.effect.
Generated with AI
Co-Authored-By: AI <ai@example.com>
Either→Result-free restructure: Schema.EitherFromUnion → plain Schema.Union + branch on status discriminant (behavior preserved). decodeUnknown→ decodeUnknownEffect; .annotations→.annotate; catchTag ParseError→SchemaError, NoSuchElementException→NoSuchElementError; Effect.zipRight→andThen, Effect.flatten→flatMap(fromOption); Option.fromNullable→fromNullishOr; FileSystem/Path from effect barrel. Tests: it.scoped→it.effect, NodeContext→NodeServices. Generated with AI Co-Authored-By: AI <ai@example.com>
The shared-transform-emitted-once assertion matched the old Schema.transform string; update to the v4 Schema.Unknown.pipe(Schema.decodeTo form. Generated with AI Co-Authored-By: AI <ai@example.com>
jbmusso
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Jun 4, 2026
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Summary
Migrates all
@evryg/effect-*packages in this monorepo from Effect v3 to Effect v4 (beta).Changes
4.0.0-beta.78) across the monorepo, updating shared dependencies and tooling config.@evryg/effect-neo4jto Effect v4.@evryg/effect-testcontainersto Effect v4.@evryg/effect-testcontainers-neo4jto Effect v4.@evryg/effect-vitest-neo4jto Effect v4.@evryg/effect-neo4j-schemato Effect v4.@evryg/effect-cypher-codegento Effect v4 (including a fix to the barrel test regex for the v4 generated transform).@evryg/effect-integresqlto Effect v4.Notes
pnpm-lock.yamlis regenerated to resolve the v4 beta dependency tree.