diff --git a/.changeset/pre.json b/.changeset/pre.json
index 5d58b736a..986519199 100644
--- a/.changeset/pre.json
+++ b/.changeset/pre.json
@@ -108,6 +108,7 @@
     "effa-sync-shared",
     "effa-sync-update-flag",
     "effect-app-prefer-fn-untraced",
+    "effect-main-rc-apis",
     "eighty-aliens-hide",
     "eighty-signs-smile",
     "eleven-eyes-lie",
diff --git a/packages/cli/CHANGELOG.md b/packages/cli/CHANGELOG.md
index b35aa94e6..5aa60fc84 100644
--- a/packages/cli/CHANGELOG.md
+++ b/packages/cli/CHANGELOG.md
@@ -1,5 +1,22 @@
 # @effect-app/cli
 
+## 2.1.0-beta.42
+
+### Patch Changes
+
+- 18bae5b: Upgrade Effect packages to `4.0.0-rc.114` (core `effect` via pkg.pr.new at `cdb3ac91` until npm publishes that version). Also bump independently versioned `@effect/language-service` to `0.87.2` and `@effect/tsgo` to `0.45.0` (requires `oxlint` `1.82.0`).
+
+  Breaking API updates from this RC:
+
+  - PascalCase Config/CLI constructors (`Config.String`, `Flag.File`, `Config.NonEmptyString`, `Config.Redacted`, `Config.Literal`)
+  - `Config.Record` now returns a Config
+  - Schema `toArbitrary` (fast-check) replaced by native `effect/unstable/arbitrary`
+  - `SchemaTransformation.transformOrFail` renamed to `transformEffect`
+  - `Fiber.currentSpan` moved to `fiber.cache.span`
+  - HTTP server addresses are `InetAddressV4`/`InetAddressV6` instead of `TcpAddress`
+  - Object JSON Schema now emits `additionalProperties: true`
+  - Schema `Union` AST stores matching as `options.mode` instead of `mode`
+
 ## 2.1.0-beta.41
 
 ### Patch Changes
diff --git a/packages/cli/package.json b/packages/cli/package.json
index a1961b63f..15b1c95d6 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@effect-app/cli",
-  "version": "2.1.0-beta.41",
+  "version": "2.1.0-beta.42",
   "license": "MIT",
   "type": "module",
   "repository": {
diff --git a/packages/e2e/CHANGELOG.md b/packages/e2e/CHANGELOG.md
index d87ce279b..2bfab640d 100644
--- a/packages/e2e/CHANGELOG.md
+++ b/packages/e2e/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @effect-app/e2e
 
+## 4.0.0-beta.321
+
+### Patch Changes
+
+- Updated dependencies [18bae5b]
+  - effect-app@4.0.0-beta.321
+  - @effect-app/infra@4.0.0-beta.321
+  - @effect-app/vue@4.0.0-beta.321
+
 ## 4.0.0-beta.320
 
 ### Patch Changes
diff --git a/packages/e2e/package.json b/packages/e2e/package.json
index 4aec31796..d5c6483fb 100644
--- a/packages/e2e/package.json
+++ b/packages/e2e/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@effect-app/e2e",
-  "version": "4.0.0-beta.320",
+  "version": "4.0.0-beta.321",
   "license": "MIT",
   "type": "module",
   "private": true,
diff --git a/packages/effect-app/CHANGELOG.md b/packages/effect-app/CHANGELOG.md
index 739f630c5..90e22cd1e 100644
--- a/packages/effect-app/CHANGELOG.md
+++ b/packages/effect-app/CHANGELOG.md
@@ -1,5 +1,22 @@
 # @effect-app/prelude
 
+## 4.0.0-beta.321
+
+### Patch Changes
+
+- 18bae5b: Upgrade Effect packages to `4.0.0-rc.114` (core `effect` via pkg.pr.new at `cdb3ac91` until npm publishes that version). Also bump independently versioned `@effect/language-service` to `0.87.2` and `@effect/tsgo` to `0.45.0` (requires `oxlint` `1.82.0`).
+
+  Breaking API updates from this RC:
+
+  - PascalCase Config/CLI constructors (`Config.String`, `Flag.File`, `Config.NonEmptyString`, `Config.Redacted`, `Config.Literal`)
+  - `Config.Record` now returns a Config
+  - Schema `toArbitrary` (fast-check) replaced by native `effect/unstable/arbitrary`
+  - `SchemaTransformation.transformOrFail` renamed to `transformEffect`
+  - `Fiber.currentSpan` moved to `fiber.cache.span`
+  - HTTP server addresses are `InetAddressV4`/`InetAddressV6` instead of `TcpAddress`
+  - Object JSON Schema now emits `additionalProperties: true`
+  - Schema `Union` AST stores matching as `options.mode` instead of `mode`
+
 ## 4.0.0-beta.320
 
 ## 4.0.0-beta.319
diff --git a/packages/effect-app/package.json b/packages/effect-app/package.json
index aaae2ff75..1ad7c0881 100644
--- a/packages/effect-app/package.json
+++ b/packages/effect-app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "effect-app",
-  "version": "4.0.0-beta.320",
+  "version": "4.0.0-beta.321",
   "license": "MIT",
   "type": "module",
   "repository": {
diff --git a/packages/infra/CHANGELOG.md b/packages/infra/CHANGELOG.md
index 49538fb6f..e3714fd3c 100644
--- a/packages/infra/CHANGELOG.md
+++ b/packages/infra/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @effect-app/infra
 
+## 4.0.0-beta.321
+
+### Patch Changes
+
+- Updated dependencies [18bae5b]
+  - effect-app@4.0.0-beta.321
+
 ## 4.0.0-beta.320
 
 ### Patch Changes
diff --git a/packages/infra/package.json b/packages/infra/package.json
index fe38b2d73..8757c3c3f 100644
--- a/packages/infra/package.json
+++ b/packages/infra/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@effect-app/infra",
-  "version": "4.0.0-beta.320",
+  "version": "4.0.0-beta.321",
   "license": "MIT",
   "type": "module",
   "repository": {
diff --git a/packages/vue-components/CHANGELOG.md b/packages/vue-components/CHANGELOG.md
index 514575633..b69f1f260 100644
--- a/packages/vue-components/CHANGELOG.md
+++ b/packages/vue-components/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @effect-app/vue-components
 
+## 4.0.0-beta.321
+
+### Patch Changes
+
+- Updated dependencies [18bae5b]
+  - effect-app@4.0.0-beta.321
+  - @effect-app/vue@4.0.0-beta.321
+
 ## 4.0.0-beta.320
 
 ### Patch Changes
diff --git a/packages/vue-components/package.json b/packages/vue-components/package.json
index a0f2558f6..2504ee19a 100644
--- a/packages/vue-components/package.json
+++ b/packages/vue-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@effect-app/vue-components",
-  "version": "4.0.0-beta.320",
+  "version": "4.0.0-beta.321",
   "repository": {
     "type": "git",
     "url": "https://github.com/effect-app/libs.git",
diff --git a/packages/vue/CHANGELOG.md b/packages/vue/CHANGELOG.md
index d671b4289..b9653348d 100644
--- a/packages/vue/CHANGELOG.md
+++ b/packages/vue/CHANGELOG.md
@@ -1,5 +1,12 @@
 # @effect-app/vue
 
+## 4.0.0-beta.321
+
+### Patch Changes
+
+- Updated dependencies [18bae5b]
+  - effect-app@4.0.0-beta.321
+
 ## 4.0.0-beta.320
 
 ### Patch Changes
diff --git a/packages/vue/package.json b/packages/vue/package.json
index d342b70fe..20f75b64f 100644
--- a/packages/vue/package.json
+++ b/packages/vue/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@effect-app/vue",
-  "version": "4.0.0-beta.320",
+  "version": "4.0.0-beta.321",
   "license": "MIT",
   "type": "module",
   "repository": {