diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 600e583..25dfe74 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -123,7 +123,7 @@ jobs:
 
       # usage-example applies three things from mavenLocal: packpack (through the plugin), the
       # toolchain plugin, and python-multiplatform's library and bindings plugin. Versions pinned in
-      # usage-example/gradle/libs.versions.toml (3.15.0-alpha01).
+      # usage-example/gradle/libs.versions.toml (3.15.0-alpha02).
       - name: Publish packpack, the toolchain plugin and python-multiplatform to mavenLocal
         run: |
           (cd .ci/pypackpack && ./gradlew :packpack:publishToMavenLocal --console=plain)
diff --git a/AGENTS.md b/AGENTS.md
index 53206a3..3e924cd 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -246,7 +246,7 @@ Prerequisites: `org.thisisthepy.python.multiplatform:packpack:0.1.0` in `~/.m2`
 `pypackpack` repository), `uv` on `PATH`, and network access: `InstallDependenciesTaskTest` and
 `InstallerTest` run a real `uv add` against PyPI. `usage-example` additionally needs an Android SDK
 (`ANDROID_HOME`) and python-multiplatform in `~/.m2`: from a python-multiplatform checkout,
-`./gradlew publishAllToMavenLocal` (`org.thisisthepy:python-multiplatform*` and bindings plugin `3.15.0-alpha01`).
+`./gradlew publishAllToMavenLocal` (`org.thisisthepy:python-multiplatform*` and bindings plugin `3.15.0-alpha02`).
 
 Run each module separately (rule 8), with output to a file under `.cache/`:
 
diff --git a/docs/SPEC.md b/docs/SPEC.md
index 617ebd0..c5500d7 100644
--- a/docs/SPEC.md
+++ b/docs/SPEC.md
@@ -61,7 +61,7 @@ Test: `PythonSdkTest` (`a CPython before 3_15 is refused as a GIL build, inside
 
 **Temporary exception: `3.15.0` without `t` (`PY3_15_0`).** It names python-multiplatform's GIL build,
 which is what python-multiplatform publishes today: its `gradle.properties` has `pythonFreeThreaded=false`,
-its artifact version (`3.15.0-alpha01`) carries no flavour, and Android and iOS have no 3.15t build yet
+its artifact version (`3.15.0-alpha02`) carries no flavour, and Android and iOS have no 3.15t build yet
 (python-multiplatform #163). Selecting `cp315t` wheels for that runtime would install wheels it cannot
 load. The exception is removed, and `3.15.0` then means `3.15.0t`, when python-multiplatform publishes
 free-threaded as its default with the flavour in its version or metadata, and #163 lands; #76 tracks it.
@@ -542,7 +542,7 @@ bundled. Every `buildPython<Variant><BuildType>` and the single host `buildPytho
      --find-links <dir> typedpython==<v> pyrefly==<v>` (`@Input` versions, defaults `0.1.0` and `1.3.2`).
      `<dir>` must hold both wheels for the platform; nothing comes from an index.
   2. The **gate artifact**, by default: the `typedpython-gate` zip python-multiplatform-ksp publishes beside
-     its processor jar, `org.thisisthepy:python-multiplatform-ksp:3.15.0-alpha01:typedpython-gate@zip`
+     its processor jar, `org.thisisthepy:python-multiplatform-ksp:3.15.0-alpha02:typedpython-gate@zip`
      (`DEFAULT_TYPEDPYTHON_GATE`, the one place its group and version are written; `-Ptypedpython.gate=
      <group:artifact:version>` overrides it). It is resolved leniently from the project's own
      repositories (python-multiplatform's `publishToMavenLocal` puts it in `mavenLocal()`), unzipped into
diff --git a/toolchain/build.gradle.kts b/toolchain/build.gradle.kts
index 321f119..6ad66f2 100644
--- a/toolchain/build.gradle.kts
+++ b/toolchain/build.gradle.kts
@@ -93,7 +93,8 @@ gradlePlugin {
 // rejected as out of scope -- `compose-multiplatform 1.7.0` (`gradle/libs.versions.toml`) is not
 // verified against it, and that is exactly the kind of build-wide change a single delegation should
 // not carry.
-// `TypedpythonCheckTaskTest` installs the real `typedpython` gate, which is not on PyPI yet:
+// `TypedpythonCheckTaskTest` installs the real `typedpython` gate, which is not published to PyPI
+// (it ships with the GitHub Release and the distribution):
 // `-Ptypedpython.wheelDir=<dir>` names the directory holding its wheel. Forwarded as-is; the test
 // fails with that instruction when it is missing rather than skipping.
 tasks.test {
diff --git a/toolchain/src/main/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGate.kt b/toolchain/src/main/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGate.kt
index 6060e6e..fdce0ac 100644
--- a/toolchain/src/main/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGate.kt
+++ b/toolchain/src/main/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGate.kt
@@ -10,7 +10,7 @@ import java.io.File
  * uses the same). This is the one place both are written; `-Ptypedpython.gate=<group:artifact:version>`
  * overrides it.
  */
-const val DEFAULT_TYPEDPYTHON_GATE = "org.thisisthepy:python-multiplatform-ksp:3.15.0-alpha01"
+const val DEFAULT_TYPEDPYTHON_GATE = "org.thisisthepy:python-multiplatform-ksp:3.15.0-alpha02"
 
 /** Project property overriding [DEFAULT_TYPEDPYTHON_GATE]. */
 const val TYPEDPYTHON_GATE_PROPERTY = "typedpython.gate"
diff --git a/toolchain/src/test/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGateArtifactTest.kt b/toolchain/src/test/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGateArtifactTest.kt
index 95ad4c3..ef36566 100644
--- a/toolchain/src/test/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGateArtifactTest.kt
+++ b/toolchain/src/test/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGateArtifactTest.kt
@@ -22,8 +22,8 @@ import kotlin.test.assertTrue
 class TypedpythonGateArtifactTest {
     private val mavenLocalZip = File(
         System.getProperty("user.home"),
-        ".m2/repository/org/thisisthepy/python-multiplatform-ksp/3.15.0-alpha01/" +
-            "python-multiplatform-ksp-3.15.0-alpha01-typedpython-gate.zip",
+        ".m2/repository/org/thisisthepy/python-multiplatform-ksp/3.15.0-alpha02/" +
+            "python-multiplatform-ksp-3.15.0-alpha02-typedpython-gate.zip",
     )
 
     @BeforeTest
diff --git a/toolchain/src/test/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGateTest.kt b/toolchain/src/test/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGateTest.kt
index 05fada3..285cde8 100644
--- a/toolchain/src/test/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGateTest.kt
+++ b/toolchain/src/test/kotlin/org/thisisthepy/python/multiplatform/toolchain/typedpython/TypedpythonGateTest.kt
@@ -41,9 +41,9 @@ class TypedpythonGateTest {
 
     @Test
     fun `the gate is the typedpython-gate zip of python-multiplatform-ksp, from one constant`() {
-        assertEquals("org.thisisthepy:python-multiplatform-ksp:3.15.0-alpha01", DEFAULT_TYPEDPYTHON_GATE)
+        assertEquals("org.thisisthepy:python-multiplatform-ksp:3.15.0-alpha02", DEFAULT_TYPEDPYTHON_GATE)
         assertEquals(
-            "org.thisisthepy:python-multiplatform-ksp:3.15.0-alpha01:typedpython-gate@zip",
+            "org.thisisthepy:python-multiplatform-ksp:3.15.0-alpha02:typedpython-gate@zip",
             typedpythonGateNotation(DEFAULT_TYPEDPYTHON_GATE),
         )
         assertEquals("typedpython.gate", TYPEDPYTHON_GATE_PROPERTY)
diff --git a/usage-example/gradle/libs.versions.toml b/usage-example/gradle/libs.versions.toml
index 8686b1f..8c67728 100644
--- a/usage-example/gradle/libs.versions.toml
+++ b/usage-example/gradle/libs.versions.toml
@@ -13,7 +13,7 @@ compose-plugin = "1.11.1-ext.3"
 kotlin = "2.4.20-Beta2"
 kotlinx-coroutines = "1.10.1"
 # python-multiplatform's library, KSP and bindings plugin share one version (its #70, #95, #318, #333).
-python-multiplatform = "3.15.0-alpha01"
+python-multiplatform = "3.15.0-alpha02"
 # The toolchain plugin, from ../toolchain via mavenLocal (`./gradlew :toolchain:publishToMavenLocal`).
 toolchain = "1.0.0-alpha"