🚀 updates

• Adds Scala 3.8 REPL support by @eed3si9n in #8349
• Updates semanticdbVersion to 4.14.1 by @xuwei-k in #8342

behind the scenes

• Update Scala 2.13 used for util cross building to 2.13.17 by @danicheg in #8346

new contributors

• @danicheg made their first contribution in #8346

Full Changelog: v1.11.7...v1.12.0-M1

🚀 updates

• Adds --sun-misc-unsafe-memory-access=allow and --enable-native-access=ALL-UNNAMED flags to suppress JDK 25 warnings by @eed3si9n in #8304
• Backports JDK 25 JEP-512/JEP-445 Main run by @eed3si9n in #8303
• fix: Fixes runMain task for JEP-512/JEP-445 Main by @xuwei-k in #8316
• Adds ability to filter UpdateReport by configurations by @mdedetrich in sbt/librarymanagement#547

🐛 bug fixes

• fix: Fixes sbt 0.13 launching by @eed3si9n in sbt/launcher#136

🎬 behind the scenes

• ci: Bump actions/setup-python from 5 to 6 by @dependabot[bot] in #8273
• deps: Updates sbt-giter8-resolver version by @xuwei-k in #8309
• test: Fixes fallback-dependencies-inter-project test by @xuwei-k in #8319
• test: Fixes run/daemon-exit test by @xuwei-k in #8320
• test: Update test dependencies by @xuwei-k in #8317

Full Changelog: v1.11.6...v1.11.7

See sbt 2.0 change summary for the overall changes in sbt 2.0.

🐛 bug fixes

• fix: Fixes binary compatibility issue in 2.0.0-RC5 by setting contrabandScala3enum to false by @eed3si9n in #8310
• fix: Fixes Giter8 integration by @eed3si9n in #8302
• fix: Fixes PluginCross by @eed3si9n in #8312

updates

• Support JDK 25 JEP-512/JEP-445 Main run by @eed3si9n + @lrytz in #8303 and sbt/zinc#1601

🎬 behind the scene

• ci: Updates mima setting by @xuwei-k in #8292
• ci: Updates Scalafmt config, and reformats build files by @xuwei-k in #8293
• test: Enables some scripted tests by @xuwei-k in #8295
• refactor: Removes some format: off comments by @xuwei-k in #8298
• test: Enables some scripted tests by @xuwei-k in #8296
• Merge 1.11.x by @eed3si9n in #8311
• ci: Removes unused code in project/Dependencies.scala by @xuwei-k in #8306

Full Changelog: v2.0.0-RC5...v2.0.0-RC6

See sbt 2.0 change summary for the overall changes in sbt 2.0.

changes with compatibility implications

• Updates Contraband to generate givens instead of implicit lazy val by @xuwei-k in sbt/contraband#188
• Updates Contraband to generate enum instead of case object by @xuwei-k in sbt/contraband#207
• Update to Contraband 0.8.0 by @eed3si9n in #8287

updates

• deps: Scala 3.7.3 by @xuwei-k in #8276
• Adds Auto aggregate .autoAggregate on Project by @eed3si9n in #8290
• Adds runTaskUnhandled to Extracted by @BillyAutrey in #8283

🐛 bug fixes

• fix: Fixes removeN operator --= by @eed3si9n in #8260
• fix: Fixes forked test error handling on JDK 17 by @eed3si9n in #8271
• fix: Catches Gson parsing error during forked tests by @eed3si9n in #8282

🎬 behind the scene

• deps: Update to Zinc 2.0.0-M8 by @eed3si9n in #8289
• docs: Fixes Scaladoc comment by @xuwei-k in #8261
• docs: Updates README by @xuwei-k in #8266
• refactor: Deletes unused internal package code by @xuwei-k in #8267
• refactor: Uses Java try-with-resources syntax in WorkerMain.java by @xuwei-k in #8269
• refactor: Deletes internal/ProjectMatrixReference.scala by @xuwei-k in #8270
• test: Fixes client-test.yml CI by pinning sbt/setup-sbt version by @xuwei-k in #8277
• ci: Bump actions/setup-python from 5 to 6 by @dependabot[bot] in #8272
• ci: Update sbt plugins and test dependencies by @xuwei-k in #8280
• ci: Adds JDK 25 tests by @xuwei-k in #8284
• refactor: Merge 1.11.x branch by @eed3si9n in #8285
• test: Migrate weaver group id to org.typelevel by @zainab-ali in #8265

new contributors

• @BillyAutrey made their first contribution in #8283
• @zainab-ali made their first contribution in #8265

Full Changelog: v2.0.0-RC4...v2.0.0-RC5

🚀 sbt launcher 1.5.0

• Update launcher code base to to Scala 3.7.2 by @eed3si9n in sbt/launcher#126
• refactor: Adds -Xsource:3 option by @xuwei-k in sbt/launcher#117
• deps: Removes Apache Ivy dependency from launcher by @eed3si9n in sbt/launcher#127

🐛 bug fixes

• fix: Fixes internal dependency classpath #8249 by @azdrojowa123 in #8257
• fix: Fixes client-side run on JDK 8 by @eed3si9n in #8259

🎬 behind the scene

• ci: FIxes building sbtn locally for Aarch64 / arm64 by @eed3si9n in #8258
• ci: Bump actions/checkout from 4 to 5 by @dependabot[bot] in #8246

Full Changelog: v1.11.5...v1.11.6

See sbt 2.0 change summary for the overall changes in sbt 2.0.

🐛 bug fixes

• fix: Fixes Java-only tests by @eed3si9n in #8238
• fix: Fixes exportJars false support by @eed3si9n in #8240 / #8247
• fix: Fixes set command error handling by @eed3si9n in #8250
• fix: Removes -Wconf:cat=unused-nowarn:s in Load.scala by @xuwei-k in #8215
• fix: Fixes sbt 1.x cross building under -Xlint by @eed3si9n in #8221
• fix: Works around syncFile issue by @eed3si9n in #8223

🎬 behind the scene

• deps: Removes scala-reflect dependency by @xuwei-k in #8214
• deps: Removes log4j by @eed3si9n in #8253
• ci: Bump actions/checkout from 4 to 5 by @dependabot[bot] in #8216
• ci: Bump actions/setup-java from 4 to 5 by @dependabot[bot] in #8228
• refactor: Removes sbt-projectmatrix in template by @xuwei-k in #8239
• ci: Updates dependabot.yml setting by @xuwei-k in #8245
• deps: Zinc 2.0.0-M7 by @eed3si9n in #8251
• ci: Removes typesafe ivy resolver by @xuwei-k in #8254
• ci: Removes scala-xml libraryDependencySchemes by @xuwei-k in #8252
• refactor: Merge 1.11.x by @eed3si9n in #8237

Full Changelog: v2.0.0-RC3...v2.0.0-RC4

changes with compatibility implications

• sbtn is built using ubuntu-22.04 image, which will require similar Linux version with glibc 2.32 and above.

🚀 features and other updates

• Adds Scala 3.8.0 support. See below
• Adds Scala Nightly repository resolver. See below
• Adds --jvm-client to the sbt runner script to launch JVM client. See below
• Central Repository publishing: Shows validation errors if present by @unkarjedy in #8191
• Central Repository publishing: Includes the root subproject name into the deployment by @jeanmarc in #8219
• Reduces sbtn outputs by @eed3si9n in #8234

Scala Nightly repository

Scala Team now publishes nightlies to a dedicated Artifactory instance. sbt 1.11.5 adds a new resolver for this:

resolvers += Resolver.scalaNightlyRepository

ThisBuild / scalaVersion := "3.8.0-RC1-bin-20250823-712d5bc-NIGHTLY"
Compile / scalacOptions += "-language:experimental.captureChecking"

This was contributed by @hamzaremmal in sbt/librarymanagement#532

Scala 3.8.0 support

Scala 3.8.0 will in-source the Scala standard library (scala-library) instead of using one from Scala 2.13. sbt 1.11.5 relaxes the Coursier same-version enforcement to support Scala 3.8.0.

This was pair programmed by @hamzaremmal + @eed3si9n during Scala Days 2025 as #8226

sbt --jvm-client

sbt 1.11.5 runner script adds new --jvm-client flag to launch the JVM version of the thin client. The implementation is the Scala code which sbtn is based on. This will be useful on platforms or CPU architectures that we do not build sbtn.

This was contributed by @eed3si9n in #8232

🎬 behind the scene

• ci: Uses sbt 1.11.4 by @eed3si9n in #8192
• ci: Adds clean.yml by @eed3si9n in #8227
• ci: Bump actions/setup-java from 4 to 5 by @dependabot[bot] in #8229
• ci: Split server-test by @eed3si9n in #8233
• deps: Bump to lm 1.11.5 by @eed3si9n in #8231

new contributors

• @jeanmarc made their first contribution in #8219
• @hamzaremmal made their first contribution in #8226

Full Changelog: v1.11.4...v1.11.5

See sbt 2.0 change summary for the overall changes in sbt 2.0.

Changes since sbt 2.0.0-RC2

• fix: Support annotated definitions in build.sbt by @Duhemm in #8205
• Uses scala.transient to denote the empty cache level by @eed3si9n in #8210
• deps: Bump to sjson-new 0.14.0-M4, which moves some of the JSON codecs into the JsonFormat companion by @eed3si9n in #8209
• Auto reload by default by @eed3si9n in #8211

Behind the scene

• ci: Update mima setting by @xuwei-k in #8206
• docs: Update ResolverFunctions#reorganizeAppResolvers comment by @xuwei-k in #8208
• docs: Banner by @eed3si9n in #8213

Full Changelog: v2.0.0-RC2...v2.0.0-RC3

See sbt 2.0 change summary for the overall changes in sbt 2.0.

Changes with compatibility implications

• Defaults all tasks to be a cached task by @eed3si9n in #8161
• Removes IntegrationTest configuration by @eed3si9n in #8184
• Unifies various dependencyTree-related tasks to dependencyTree input task by @eed3si9n in #8199
• Changes the test task type from Unit to TestResult by @eed3si9n in #8181
• Changes the testForkedParallel setting to true by default by @eed3si9n in #8193

Feature enhancements

• deps: Scala 3.7.2 by @xuwei-k in #8179
• Scala compiler plugin remote cache support by @eed3si9n in #8101
• Support debug output for macros by @eed3si9n in #8140
• Update forked test to use a new worker implementation by @eed3si9n in #8170

Bug fixes

• fix: Cache SemanticDB output when not includ in the JAR by @bjaglin in #8086
• fix: Fixes action cache capturing absolute paths by @eed3si9n in #8099
• fix: Fixes the task macro by @eed3si9n in #8106
• fix: Ports eval workaround for Windows by @eed3si9n in #8107
• fix: Fixes ContTestMacro by @xuwei-k in #8116
• fix: Support minus sign in project names by @Duhemm in #8168
• fix: Fixes the forked test by waiting for the stdio to connect by @eed3si9n in #8180
• fix: Fixes caching issue during reload by @eed3si9n in #8200

Behind the scene

• deps: Updates sjson-new etc by @xuwei-k in #8165
• ci: Run some CI on JDK 8 by @eed3si9n in #8169
• ci: Update dataclass-scalafix by @xuwei-k in #8164
• test: Adds caching tests by @eed3si9n in #8105
• test: Test ScalaDoc by @eed3si9n in #8186
• refactor: Clean up EvaluateTask by @eed3si9n in #8108
• refactor: Adds using if explicitly providing arguments to methods defined with implicit by @xuwei-k in #8111 + #8114
• refactor: Removes unused imports by @xuwei-k in #8110 / #8113
• refactor: Removes RefThenConfig extension toString method by @xuwei-k in #8112
• refactor: Updates append macro to pass in the given evidence by @xuwei-k in #8115
• refactor: Simplifies previous macro by @xuwei-k in #8118
• refactor: Remove deprecated methods by @eed3si9n in #8121
• refactor: Merge branch 1.10.x into develop by @eed3si9n in #8124
• refactor: Merge branch 1.11.x by @eed3si9n in #8138 + #8182
• refactor: Remove unused code by @eed3si9n in #8183
• refactor: Hides Ivy related classes by @eed3si9n in #8196

Full Changelog: v1.11.3...v2.0.0-RC2

2.0.0-RC1 is dead on arrival. Please use 2.0.0-RC2 instead.