diff --git a/backend/mirai-console/build.gradle.kts b/backend/mirai-console/build.gradle.kts
index 74ff2294a..24fd5e80a 100644
--- a/backend/mirai-console/build.gradle.kts
+++ b/backend/mirai-console/build.gradle.kts
@@ -13,80 +13,35 @@ plugins {
 }
 
 version = Versions.console
-description = "Console backend for mirai"
-
-java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
-}
-
-tasks.withType(JavaCompile::class.java) {
-    options.encoding = "UTF8"
-}
+description = "Mirai Console Backend"
 
 kotlin {
     explicitApiWarning()
-
-    sourceSets.all {
-        target.compilations.all {
-            kotlinOptions {
-                jvmTarget = "1.8"
-                freeCompilerArgs = freeCompilerArgs + "-Xjvm-default=all"
-                //useIR = true
-            }
-        }
-        languageSettings.apply {
-            enableLanguageFeature("InlineClasses")
-            progressiveMode = true
-
-            useExperimentalAnnotation("kotlin.Experimental")
-            useExperimentalAnnotation("kotlin.RequiresOptIn")
-
-            useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiInternalAPI")
-            useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiExperimentalAPI")
-            useExperimentalAnnotation("net.mamoe.mirai.console.ConsoleFrontEndImplementation")
-            useExperimentalAnnotation("net.mamoe.mirai.console.util.ConsoleExperimentalApi")
-            useExperimentalAnnotation("kotlin.ExperimentalUnsignedTypes")
-            useExperimentalAnnotation("kotlin.experimental.ExperimentalTypeInference")
-            useExperimentalAnnotation("kotlin.contracts.ExperimentalContracts")
-            useExperimentalAnnotation("kotlinx.serialization.ExperimentalSerializationApi")
-            useExperimentalAnnotation("net.mamoe.mirai.console.util.ConsoleInternalApi")
-        }
-    }
 }
 
 dependencies {
-    compileAndTestRuntime("net.mamoe:mirai-core:${Versions.core}")
-    compileAndTestRuntime(kotlin("stdlib", Versions.kotlinStdlib))
-    compileAndTestRuntime(kotlin("stdlib-jdk8", Versions.kotlinStdlib))
+    compileAndTestRuntime(`mirai-core`)
+    compileAndTestRuntime(`kotlin-stdlib`)
+    compileAndTestRuntime(`kotlin-stdlib-jdk8`)
 
-    compileAndTestRuntime("org.jetbrains.kotlinx:atomicfu:${Versions.atomicFU}")
-    compileAndTestRuntime(kotlinx("coroutines-core", Versions.coroutines))
-    compileAndTestRuntime(kotlinx("serialization-core", Versions.serialization))
-    compileAndTestRuntime(kotlinx("serialization-json", Versions.serialization))
-    compileAndTestRuntime(kotlin("reflect"))
+    compileAndTestRuntime(`kotlinx-atomicfu`)
+    compileAndTestRuntime(`kotlinx-coroutines-core`)
+    compileAndTestRuntime(`kotlinx-serialization-core`)
+    compileAndTestRuntime(`kotlinx-serialization-json`)
+    compileAndTestRuntime(`kotlin-reflect`)
 
-    smartImplementation("net.mamoe.yamlkt:yamlkt:${Versions.yamlkt}")
-    smartImplementation("org.jetbrains:annotations:19.0.0")
-    smartApi(kotlinx("coroutines-jdk8", Versions.coroutines))
+    smartImplementation(yamlkt)
+    smartImplementation(`jetbrains-annotations`)
+    smartApi(`kotlinx-coroutines-jdk8`)
 
-    testApi("net.mamoe:mirai-core-qqandroid:${Versions.core}")
-    testApi(kotlin("stdlib-jdk8"))
-    testApi(kotlin("test"))
-    testApi(kotlin("test-junit5"))
-
-    testApi("org.junit.jupiter:junit-jupiter-api:5.2.0")
-    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.2.0")
+    testApi(`mirai-core-qqandroid`)
+    testApi(`kotlin-stdlib-jdk8`)
 }
 
 tasks {
-    "test"(Test::class) {
-        useJUnitPlatform()
-    }
-
     val compileKotlin by getting {}
 
-    val fillBuildConstants by registering {
+    register("fillBuildConstants") {
         group = "mirai"
         doLast {
             (compileKotlin as KotlinCompile).source.filter { it.name == "MiraiConsoleBuildConstants.kt" }.single()
@@ -109,8 +64,4 @@ tasks {
     }
 }
 
-// region PUBLISHING
-
-setupPublishing("mirai-console")
-
-// endregion
\ No newline at end of file
+setupPublishing("mirai-console")
\ No newline at end of file
diff --git a/backend/mirai-console/src/internal/util/CommonUtils.kt b/backend/mirai-console/src/internal/util/CommonUtils.kt
index 27f5d5bdd..037bd0bb7 100644
--- a/backend/mirai-console/src/internal/util/CommonUtils.kt
+++ b/backend/mirai-console/src/internal/util/CommonUtils.kt
@@ -27,4 +27,20 @@ internal inline fun <reified E : Throwable> runIgnoreException(block: () -> Unit
         if (e is E) return null
         throw e
     }
+}
+
+internal fun getCallerClassloader(): ClassLoader? {
+    return runCatching {
+        /*
+        java.base/java.lang.Thread.getStackTrace(Thread.java:1598)
+        net.mamoe.mirai.console.internal.util.CommonUtils.getCallerClassloader(CommonUtils.kt:37)
+        net.mamoe.mirai.console.plugin.jvm.JvmPluginDescription$Companion.loadFromResource$default(JvmPluginDescription.kt:67)
+        net.mamoe.mirai.console.KotlinP.<init>(TestMiraiConosle.kt:34)
+        net.mamoe.mirai.console.KotlinP.<clinit>(TestMiraiConosle.kt:34)
+        net.mamoe.mirai.console.TestMiraiConosleKt.main(TestMiraiConosle.kt:37)
+        net.mamoe.mirai.console.TestMiraiConosleKt.main(TestMiraiConosle.kt)
+         */
+        val traces = Thread.currentThread().stackTrace
+        Class.forName(traces[3].className).classLoader
+    }.getOrNull()
 }
\ No newline at end of file
diff --git a/backend/mirai-console/src/plugin/jvm/JvmPluginDescription.kt b/backend/mirai-console/src/plugin/jvm/JvmPluginDescription.kt
index ee17ceef4..6a4452879 100644
--- a/backend/mirai-console/src/plugin/jvm/JvmPluginDescription.kt
+++ b/backend/mirai-console/src/plugin/jvm/JvmPluginDescription.kt
@@ -14,12 +14,11 @@ package net.mamoe.mirai.console.plugin.jvm
 import kotlinx.serialization.Serializable
 import net.mamoe.mirai.console.compiler.common.ResolveContext
 import net.mamoe.mirai.console.compiler.common.ResolveContext.Kind.*
+import net.mamoe.mirai.console.internal.util.getCallerClassloader
 import net.mamoe.mirai.console.plugin.description.PluginDependency
 import net.mamoe.mirai.console.plugin.description.PluginDescription
 import net.mamoe.mirai.console.util.SemVersion
 import net.mamoe.yamlkt.Yaml
-import sun.reflect.CallerSensitive
-import sun.reflect.Reflection
 
 /**
  * JVM 插件的描述. 通常作为 `plugin.yml`
@@ -62,12 +61,19 @@ public interface JvmPluginDescription : PluginDescription {
             block: JvmPluginDescriptionBuilder.() -> Unit = {},
         ): JvmPluginDescription = error("Shouldn't be called")
 
+        /**
+         * 从 [pluginClassloader] 读取资源文件 [filename] 并以 YAML 格式解析为 [SimpleJvmPluginDescription]
+         *
+         * @param filename [ClassLoader.getResourceAsStream] 的参数 `name`
+         * @param pluginClassloader 默认通过 [Thread.getStackTrace] 获取调用方 [Class] 然后获取其 [Class.getClassLoader].
+         */
+        @JvmOverloads
         @JvmStatic
-        @CallerSensitive
-        public fun loadFromResource(filename: String = "config.yaml"): JvmPluginDescription {
-            val callerClass = Reflection.getCallerClass()
-            val stream = callerClass.getResourceAsStream(filename) ?: callerClass.classLoader.getResourceAsStream(filename)
-            ?: error("Cannot find plugin description resource")
+        public fun loadFromResource(
+            filename: String = "plugin.yml",
+            pluginClassloader: ClassLoader = getCallerClassloader() ?: error("Cannot find caller classloader, please specify manually."),
+        ): JvmPluginDescription {
+            val stream = pluginClassloader.getResourceAsStream(filename) ?: error("Cannot find plugin description resource '$filename'")
 
             val bytes = stream.use { it.readBytes() }
 
diff --git a/backend/mirai-console/src/util/SemVersion.kt b/backend/mirai-console/src/util/SemVersion.kt
index 4aee3861d..e86131864 100644
--- a/backend/mirai-console/src/util/SemVersion.kt
+++ b/backend/mirai-console/src/util/SemVersion.kt
@@ -26,12 +26,13 @@ import net.mamoe.mirai.console.internal.data.map
 import net.mamoe.mirai.console.internal.util.semver.SemVersionInternal
 import net.mamoe.mirai.console.util.SemVersion.Companion.equals
 import net.mamoe.mirai.console.util.SemVersion.Requirement
+import net.mamoe.mirai.console.util.SemVersion.SemVersionAsStringSerializer
 import kotlin.LazyThreadSafetyMode.PUBLICATION
 
 /**
  * [语义化版本](https://semver.org/lang/zh-CN/) 支持
  *
- * 解析示例:
+ * ### 解析示例
  *
  * `1.0.0-M4+c25733b8` 将会解析出下面的内容,
  * [major] (主本号), [minor] (次版本号), [patch] (修订号), [identifier] (先行版本号) 和 [metadata] (元数据).
@@ -48,10 +49,13 @@ import kotlin.LazyThreadSafetyMode.PUBLICATION
  *
  * 对于核心版本号, 此实现稍微比语义化版本规范宽松一些, 允许 x.y 的存在.
  *
+ * ### 序列化
+ * 使用 [SemVersionAsStringSerializer], [SemVersion] 被序列化为 [toString] 的字符串.
+ *
  * @see Requirement 版本号要修
  * @see SemVersion.invoke 由字符串解析
  */
-@Serializable(with = SemVersion.SemVersionAsStringSerializer::class)
+@Serializable(with = SemVersionAsStringSerializer::class)
 public data class SemVersion
 /**
  * @see SemVersion.invoke 字符串解析
@@ -88,26 +92,43 @@ internal constructor(
          *
          * @see [SemVersion.parseRangeRequirement]
          */
-        val rule: String
+        val rule: String,
     ) {
+        init {
+            kotlin.runCatching {
+                parseRangeRequirement(rule)
+            }.onFailure {
+                throw java.lang.IllegalArgumentException("Syntax error: $rule", it)
+            }
+        }
+
         @Transient
         private val impl = SemVersionInternal.parseRangeRequirement(rule)
 
         /** 在 [version] 满足此要求时返回 true */
         public fun test(version: SemVersion): Boolean = impl.test(version)
 
+        /**
+         * 序列化为字符串, [rule]. 从字符串反序列化, [parseRangeRequirement].
+         */
         public object RequirementAsStringSerializer : KSerializer<Requirement> by String.serializer().map(
             serializer = { it.rule },
             deserializer = { parseRangeRequirement(it) }
         )
 
         public companion object {
+            /**
+             * @see parseRangeRequirement
+             */
             @JvmSynthetic
             public operator fun invoke(@ResolveContext(VERSION_REQUIREMENT) requirement: String): Requirement =
                 parseRangeRequirement(requirement)
         }
     }
 
+    /**
+     * 使用 [SemVersion.toString] 序列化, 使用 [SemVersion.invoke] 反序列化.
+     */
     public object SemVersionAsStringSerializer : KSerializer<SemVersion> by String.serializer().map(
         serializer = { it.toString() },
         deserializer = { SemVersion(it) }
@@ -170,8 +191,8 @@ internal constructor(
          */
         @JvmStatic
         @Throws(IllegalArgumentException::class)
-        public fun parseRangeRequirement(@ResolveContext(VERSION_REQUIREMENT) requirement: String): Requirement =
-            Requirement(requirement)
+        public fun parseRangeRequirement(@ResolveContext(VERSION_REQUIREMENT) rule: String): Requirement =
+            Requirement(rule)
 
         /** @see [Requirement.test] */
         @JvmStatic
@@ -223,7 +244,11 @@ internal constructor(
     public override fun toString(): String = toString
 
     /**
-     * 将 [SemVersion] 转为 Kotlin data class 风格的 [String]
+     * 将 [SemVersion] 转为 Kotlin data class 风格的 [String].
+     *
+     * ```
+     * return "SemVersion(major=$major, minor=$minor, patch=$patch, identifier=$identifier, metadata=$metadata)"
+     * ```
      */
     public fun toStructuredString(): String {
         return "SemVersion(major=$major, minor=$minor, patch=$patch, identifier=$identifier, metadata=$metadata)"
diff --git a/build.gradle.kts b/build.gradle.kts
index 426e01df6..dcb502a8d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -43,14 +43,22 @@ subprojects {
 }
 
 val experimentalAnnotations = arrayOf(
+    "kotlin.Experimental",
     "kotlin.RequiresOptIn",
     "kotlin.ExperimentalUnsignedTypes",
-    // "kotlin.ExperimentalStdlibApi",
+    "kotlin.ExperimentalStdlibApi",
     "kotlin.contracts.ExperimentalContracts",
+    "kotlin.time.ExperimentalTime",
     "kotlin.experimental.ExperimentalTypeInference",
-    // "kotlinx.coroutines.ExperimentalCoroutinesApi",
+    "kotlinx.coroutines.ExperimentalCoroutinesApi",
+    "kotlinx.serialization.ExperimentalSerializationApi",
     "io.ktor.util.KtorExperimentalAPI",
-    "kotlin.time.ExperimentalTime"
+
+    "net.mamoe.mirai.utils.MiraiInternalAPI",
+    "net.mamoe.mirai.utils.MiraiExperimentalAPI",
+    "net.mamoe.mirai.console.ConsoleFrontEndImplementation",
+    "net.mamoe.mirai.console.util.ConsoleExperimentalApi",
+    "net.mamoe.mirai.console.util.ConsoleInternalApi"
 )
 
 
@@ -139,10 +147,11 @@ fun Project.configureSourceSets() {
 fun Project.configureKotlinExperimentalUsages() {
     val sourceSets = kotlinSourceSets ?: return
 
-    for (target in sourceSets) {
+    for (target in sourceSets) target.languageSettings.run {
+        enableLanguageFeature("InlineClasses")
+        progressiveMode = true
         experimentalAnnotations.forEach { a ->
-            target.languageSettings.useExperimentalAnnotation(a)
-            //target.languageSettings.enableLanguageFeature("InlineClasses")
+            useExperimentalAnnotation(a)
         }
     }
 }
diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index 49eec70f7..424cd4c80 100644
--- a/buildSrc/src/main/kotlin/Versions.kt
+++ b/buildSrc/src/main/kotlin/Versions.kt
@@ -7,17 +7,21 @@
  * https://github.com/mamoe/mirai/blob/master/LICENSE
  */
 
-@file:Suppress("MemberVisibilityCanBePrivate")
+@file:Suppress("MemberVisibilityCanBePrivate", "ObjectPropertyName", "unused")
 
 object Versions {
     const val core = "1.3.3"
-    const val console = "1.0-RC2-dev-3"
+    const val console = "1.0-RC2-dev-4"
     const val consoleGraphical = "0.0.7"
     const val consoleTerminal = console
 
     const val kotlinCompiler = "1.4.20-RC"
     const val kotlinStdlib = "1.4.10"
 
+    const val kotlinIntellijPlugin = "1.4.20-RC-IJ2020.2-1" // -release
+    const val intellij = "2020.2.1"
+
+
     const val coroutines = "1.4.0"
     const val serialization = "1.0.1"
     const val ktor = "1.4.1"
@@ -28,5 +32,34 @@ object Versions {
     const val bintray = "1.8.5"
 
     const val blockingBridge = "1.4.1"
+
+    @Suppress("SpellCheckingInspection")
     const val yamlkt = "0.7.1"
-}
\ No newline at end of file
+
+    const val intellijGradlePlugin = "0.4.16"
+}
+
+const val `kotlin-compiler` = "org.jetbrains.kotlin:kotlin-compiler:${Versions.kotlinCompiler}"
+
+const val `kotlin-stdlib` = "org.jetbrains.kotlin:kotlin-stdlib:${Versions.kotlinStdlib}"
+const val `kotlin-stdlib-jdk8` = "org.jetbrains.kotlin:kotlin-stdlib:${Versions.kotlinStdlib}"
+const val `kotlin-reflect` = "org.jetbrains.kotlin:kotlin-reflect:${Versions.kotlinStdlib}"
+const val `kotlin-test` = "org.jetbrains.kotlin:kotlin-test:${Versions.kotlinStdlib}"
+const val `kotlin-test-junit5` = "org.jetbrains.kotlin:kotlin-test-junit5:${Versions.kotlinStdlib}"
+
+const val `kotlinx-coroutines-core` = "org.jetbrains.kotlinx:kotlinx-coroutines-core:${Versions.coroutines}"
+const val `kotlinx-coroutines-jdk8` = "org.jetbrains.kotlinx:kotlinx-coroutines-jdk8:${Versions.coroutines}"
+
+const val `kotlinx-serialization-core` = "org.jetbrains.kotlinx:kotlinx-serialization-core:${Versions.serialization}"
+const val `kotlinx-serialization-json` = "org.jetbrains.kotlinx:kotlinx-serialization-json:${Versions.serialization}"
+const val `kotlinx-serialization-protobuf` = "org.jetbrains.kotlinx:kotlinx-serialization-protobuf:${Versions.serialization}"
+
+const val `kotlinx-atomicfu` = "org.jetbrains.kotlinx:atomicfu:${Versions.atomicFU}"
+
+const val `mirai-core` = "net.mamoe:mirai-core:${Versions.core}"
+const val `mirai-core-qqandroid` = "net.mamoe:mirai-core-qqandroid:${Versions.core}"
+const val `mirai-core-api` = "net.mamoe:mirai-core-api:${Versions.core}"
+
+const val yamlkt = "net.mamoe.yamlkt:yamlkt:${Versions.yamlkt}"
+
+const val `jetbrains-annotations` = "org.jetbrains:annotations:19.0.0"
diff --git a/tools/compiler-common/build.gradle.kts b/tools/compiler-common/build.gradle.kts
index fafaf57f1..84fedfdc6 100644
--- a/tools/compiler-common/build.gradle.kts
+++ b/tools/compiler-common/build.gradle.kts
@@ -14,61 +14,12 @@ repositories {
 version = Versions.console
 description = "Mirai Console compiler common"
 
-java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
-}
-
-tasks.withType(JavaCompile::class.java) {
-    options.encoding = "UTF8"
-}
-
-kotlin {
-    sourceSets.all {
-        target.compilations.all {
-            kotlinOptions {
-                jvmTarget = "1.8"
-                freeCompilerArgs = freeCompilerArgs + "-Xjvm-default=all"
-                //useIR = true
-            }
-        }
-        languageSettings.apply {
-            progressiveMode = true
-
-            useExperimentalAnnotation("kotlin.Experimental")
-            useExperimentalAnnotation("kotlin.RequiresOptIn")
-
-            useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiInternalAPI")
-            useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiExperimentalAPI")
-            useExperimentalAnnotation("net.mamoe.mirai.console.ConsoleFrontEndImplementation")
-            useExperimentalAnnotation("net.mamoe.mirai.console.util.ConsoleExperimentalApi")
-            useExperimentalAnnotation("kotlin.ExperimentalUnsignedTypes")
-            useExperimentalAnnotation("kotlin.experimental.ExperimentalTypeInference")
-            useExperimentalAnnotation("kotlin.contracts.ExperimentalContracts")
-            useExperimentalAnnotation("kotlinx.serialization.ExperimentalSerializationApi")
-            useExperimentalAnnotation("net.mamoe.mirai.console.util.ConsoleInternalApi")
-        }
-    }
-}
-
 dependencies {
-    api("org.jetbrains:annotations:19.0.0")
-    api(kotlinx("coroutines-jdk8", Versions.coroutines))
+    api(`jetbrains-annotations`)
+    // api(`kotlinx-coroutines-jdk8`)
 
-    compileOnly("org.jetbrains.kotlin:kotlin-compiler:${Versions.kotlinCompiler}")
-    testRuntimeOnly("org.jetbrains.kotlin:kotlin-compiler:${Versions.kotlinCompiler}")
-
-    testApi(kotlin("test"))
-    testApi(kotlin("test-junit5"))
-
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.2.0")
-    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.2.0")
-}
-
-tasks {
-    "test"(Test::class) {
-        useJUnitPlatform()
-    }
+    compileOnly(`kotlin-compiler`)
+    testRuntimeOnly(`kotlin-compiler`)
 }
 
 setupPublishing("mirai-console-compiler-common")
\ No newline at end of file
diff --git a/tools/gradle-plugin/build.gradle.kts b/tools/gradle-plugin/build.gradle.kts
index d83c375a2..4f50923f1 100644
--- a/tools/gradle-plugin/build.gradle.kts
+++ b/tools/gradle-plugin/build.gradle.kts
@@ -25,15 +25,7 @@ dependencies {
     compileOnly(kotlin("stdlib"))
 
     api("com.github.jengelman.gradle.plugins:shadow:6.0.0")
-    api("org.jetbrains:annotations:19.0.0")
-}
-
-dependencies {
-    testApi(kotlin("test"))
-    testApi(kotlin("test-junit5"))
-
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.2.0")
-    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.2.0")
+    api(`jetbrains-annotations`)
 }
 
 version = Versions.console
@@ -56,35 +48,16 @@ gradlePlugin {
     }
 }
 
-kotlin {
-    sourceSets.all {
-        target.compilations.all {
-            kotlinOptions {
-                apiVersion = "1.3"
-                languageVersion = "1.3"
-                jvmTarget = "1.8"
-                freeCompilerArgs = freeCompilerArgs + "-Xjvm-default=all"
-            }
-        }
-        languageSettings.apply {
-            progressiveMode = true
-
-            useExperimentalAnnotation("kotlin.RequiresOptIn")
-            useExperimentalAnnotation("kotlin.ExperimentalUnsignedTypes")
-            useExperimentalAnnotation("kotlin.experimental.ExperimentalTypeInference")
-            useExperimentalAnnotation("kotlin.contracts.ExperimentalContracts")
-        }
+kotlin.target.compilations.all {
+    kotlinOptions {
+        apiVersion = "1.3"
+        languageVersion = "1.3"
     }
 }
 
 tasks {
-    "test"(Test::class) {
-        useJUnitPlatform()
-    }
-
     val compileKotlin by getting {}
 
-    @Suppress("UNUSED_VARIABLE")
     val fillBuildConstants by registering {
         group = "mirai"
         doLast {
@@ -108,13 +81,4 @@ tasks {
     compileKotlin.dependsOn(fillBuildConstants)
 }
 
-java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
-}
-
-tasks.withType(JavaCompile::class.java) {
-    options.encoding = "UTF8"
-}
-
 setupPublishing("mirai-console-gradle")
\ No newline at end of file
diff --git a/tools/gradle-plugin/src/VersionConstants.kt b/tools/gradle-plugin/src/VersionConstants.kt
index 3c742ce5a..aa639fdcc 100644
--- a/tools/gradle-plugin/src/VersionConstants.kt
+++ b/tools/gradle-plugin/src/VersionConstants.kt
@@ -10,6 +10,6 @@
 package net.mamoe.mirai.console.gradle
 
 internal object VersionConstants {
-    const val CONSOLE_VERSION = "1.0-RC2-dev-3" // value is written here automatically during build
+    const val CONSOLE_VERSION = "1.0-RC2-dev-4" // value is written here automatically during build
     const val CORE_VERSION = "1.3.3" // value is written here automatically during build
 }
\ No newline at end of file
diff --git a/tools/intellij-plugin/build.gradle.kts b/tools/intellij-plugin/build.gradle.kts
index 2b71cfb01..168a5845b 100644
--- a/tools/intellij-plugin/build.gradle.kts
+++ b/tools/intellij-plugin/build.gradle.kts
@@ -6,8 +6,7 @@ plugins {
     `maven-publish`
     id("com.jfrog.bintray")
 
-    id("org.jetbrains.intellij") version "0.4.16"
-
+    id("org.jetbrains.intellij") version Versions.intellijGradlePlugin
 }
 
 repositories {
@@ -17,23 +16,14 @@ repositories {
 version = Versions.console
 description = "IntelliJ plugin for Mirai Console"
 
-java {
-    sourceCompatibility = JavaVersion.VERSION_1_8
-    targetCompatibility = JavaVersion.VERSION_1_8
-}
-
-tasks.withType(JavaCompile::class.java) {
-    options.encoding = "UTF8"
-}
-
 // See https://github.com/JetBrains/gradle-intellij-plugin/
 intellij {
-    version = "2020.2.1"
+    version = Versions.intellij
     isDownloadSources = true
     updateSinceUntilBuild = false
 
     setPlugins(
-        "org.jetbrains.kotlin:1.4.20-RC-IJ2020.2-1@eap",
+        "org.jetbrains.kotlin:${Versions.kotlinIntellijPlugin}@eap",
         "java"
     )
 }
@@ -62,59 +52,18 @@ tasks.withType<org.jetbrains.intellij.tasks.PatchPluginXmlTask> {
         </ul>
     """.trimIndent())
     changeNotes("""
-        Initial release
+        See https://github.com/mamoe/mirai-console/releases
     """.trimIndent())
 }
 
-kotlin {
-    sourceSets.all {
-        target.compilations.all {
-            kotlinOptions {
-                jvmTarget = "1.8"
-                freeCompilerArgs = freeCompilerArgs + "-Xjvm-default=all"
-                //useIR = true
-            }
-        }
-        languageSettings.apply {
-            progressiveMode = true
-
-            useExperimentalAnnotation("kotlin.Experimental")
-            useExperimentalAnnotation("kotlin.RequiresOptIn")
-
-            useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiInternalAPI")
-            useExperimentalAnnotation("net.mamoe.mirai.utils.MiraiExperimentalAPI")
-            useExperimentalAnnotation("net.mamoe.mirai.console.ConsoleFrontEndImplementation")
-            useExperimentalAnnotation("net.mamoe.mirai.console.util.ConsoleExperimentalApi")
-            useExperimentalAnnotation("kotlin.ExperimentalUnsignedTypes")
-            useExperimentalAnnotation("kotlin.experimental.ExperimentalTypeInference")
-            useExperimentalAnnotation("kotlin.contracts.ExperimentalContracts")
-            useExperimentalAnnotation("kotlinx.serialization.ExperimentalSerializationApi")
-            useExperimentalAnnotation("net.mamoe.mirai.console.util.ConsoleInternalApi")
-        }
-    }
-}
-
 dependencies {
-    api("org.jetbrains:annotations:19.0.0")
-    api(kotlinx("coroutines-jdk8", Versions.coroutines))
+    api(`jetbrains-annotations`)
+    api(`kotlinx-coroutines-jdk8`)
 
     api(project(":mirai-console-compiler-common"))
 
-    compileOnly("org.jetbrains.kotlin:kotlin-compiler:${Versions.kotlinCompiler}")
-    compileOnly("org.jetbrains.kotlin:kotlin-compiler:${Versions.kotlinCompiler}")
+    compileOnly(`kotlin-compiler`)
     compileOnly(files("libs/ide-common.jar"))
-
-    testApi(kotlin("test"))
-    testApi(kotlin("test-junit5"))
-
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.2.0")
-    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.2.0")
-}
-
-tasks {
-    "test"(Test::class) {
-        useJUnitPlatform()
-    }
 }
 
 setupPublishing("mirai-console-intellij")
\ No newline at end of file