Just use git tag for releasing a new version (#558)

* Add 0.8.23 release notes

* Update release steps

* Fix build.sbt

Author: xerial

.github/workflows/release.yml

@@ -2,6 +2,7 @@ name: Release to Sonatype
 
 on:
   push:
+    branches: [develop, main]
     tags:
       - v*
   workflow_dispatch:

README.md

@@ -85,17 +85,18 @@ Here is a list of sbt commands for daily development:
 > publishLocal            # Install to local .ivy2 repository
 > publishM2               # Install to local .m2 Maven repository
 > publish                 # Publishing a snapshot version to the Sonatype repository
+```
 
-> release                 # Run the release procedure (set a new version, run tests, upload artifacts, then deploy to Sonatype)
+### Publish to Sonatype (Maven Central)
 
-# [optional] When you need to perform the individual release steps manually, use the following commands:
-> publishSigned           # Publish GPG signed artifacts to the Sonatype repository
-> sonatypeBundleRelease   # Publish to the Maven Central (It will be synched within less than 4 hours)
-```
+To publish a new version, you only need to add a new git tag and push it to GitHub. GitHub Action will deploy a new release version to Maven Central (Sonatype).
 
-Once you run a release command, a new git tag v(version number) will be pushed to GitHub. GitHub Action will deploy a new release version to Maven Central (Sonatype).
+```scala
+$ git tag v0.x.y
+$ git push origin v0.x.y
+```
 
-For publishing to Maven central using a local machine, msgpack-java uses [sbt-sonatype](https://github.com/xerial/sbt-sonatype) plugin. Set Sonatype account information (user name and password) in the global sbt settings. To protect your password, never include this file in your project.
+If you need to publish to Maven central using a local machine, you need to configure [sbt-sonatype](https://github.com/xerial/sbt-sonatype) plugin. First set Sonatype account information (user name and password) in the global sbt settings. To protect your password, never include this file in your project.
 
 ___$HOME/.sbt/(sbt-version)/sonatype.sbt___
 
@@ -106,6 +107,17 @@ credentials += Credentials("Sonatype Nexus Repository Manager",
         "(Sonatype password)")
 ```
 
+You may also need to configure GPG. See the instruction in [sbt-pgp](https://github.com/sbt/sbt-pgp).
+
+Then, run `publishedSigned` followed by `sonatypeBundleRelease`:
+```
+# [optional] When you need to perform the individual release steps manually, use the following commands:
+> publishSigned           # Publish GPG signed artifacts to the Sonatype repository
+> sonatypeBundleRelease   # Publish to the Maven Central (It will be synched within less than 4 hours)
+```
+
+If some sporadic error happens (e.g., Sonatype timeout), rerun `sonatypeBundleRelease` again.
+
 ### Project Structure
 
 ```

RELEASE_NOTES.md

@@ -1,5 +1,21 @@
 # Release Notes
 
+## 0.8.23
+
+* Produce stable map values [#548](https://github.com/msgpack/msgpac-java/pull/#548)
+* Fixes #544: Fix a bug in reading EXT32 of 2GB size [#545](https://github.com/msgpack/msgpac-java/pull/545)
+* Add a warning note for the usage of MessageUnpacker.readPayloadAsReference [#546](https://github.com/msgpack/msgpac-java/pull/546)
+
+Intenral changes:
+* Add a script for releasing a new version of msgpack-java at CI
+* Publish a snapshot version for every main branch commit [#556](https://github.com/msgpack/msgpac-java/pull/556)
+* Use dynamic versioning with Git tags v0.x.y format [#555](https://github.com/msgpack/msgpac-java/pull/555)
+* Update ScalaTest and ScalaCheck versions [#554](https://github.com/msgpack/msgpac-java/pull/554)
+* Remove findbugs [#553](https://github.com/msgpack/msgpac-java/pull/553)
+* Update build settings to use latest version of sbt and plugins [#552](https://github.com/msgpack/msgpac-java/pull/552)
+* Run GitHub Actions for develop and main branches [#551](https://github.com/msgpack/msgpac-java/pull/551)
+* Remove Travis build [#550](https://github.com/msgpack/msgpac-java/pull/550)
+
 ## 0.8.22
  * Support extension type key in Map [#535](https://github.com/msgpack/msgpack-java/pull/535)
  * Remove addTargetClass() and addTargetTypeReference() from ExtensionTypeCustomDeserializers [#539](https://github.com/msgpack/msgpack-java/pull/539)

build.sbt

@@ -1,5 +1,3 @@
-import ReleaseTransformations._
-
 Global / onChangedBuildSource := ReloadOnSourceChanges
 
 // For performance testing, ensure each test run one-by-one
@@ -37,15 +35,6 @@ val buildSettings = Seq[Setting[_]](
       opts
     }
   },
-  // Release settings
-  releaseProcess := Seq[ReleaseStep](
-    checkSnapshotDependencies,
-    inquireVersions,
-    runClean,
-    runTest,
-    tagRelease,
-    pushChanges
-  ),
   // Add sonatype repository settings
   publishTo := sonatypePublishToBundle.value,
   // Style check config: (sbt-jchekcstyle)

project/plugins.sbt

@@ -1,4 +1,3 @@
-addSbtPlugin("com.github.sbt" % "sbt-release"  % "1.0.15")
 addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.7")
 addSbtPlugin("com.github.sbt" % "sbt-pgp"      % "2.1.2")
 // TODO: Fixes jacoco error: