SpringBoot spring boot3. 0-M2 delete the dependency of Tomcat?

question: When I start the spring boot appliction, the listening port does not take effect

version: spring boot version : 3.0-M2 jdk version: 17 2021-09-14 LTS

pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.0.0-M2</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>boot3.0</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>17</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>

</project>

logger:

Java HotSpot(TM) 64-Bit Server VM warning: Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release.

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::             (v3.0.0-M2)

2022-04-04 23:09:52.473  INFO 1484 --- [           main] com.example.demo.DemoApplication         : Starting DemoApplication using Java 17 on localhost with PID 1484 (/Users/jameszow/Documents/JavaWorkSpace/boot3.0/target/classes started by jameszow in /Users/jameszow/Documents/JavaWorkSpace/boot3.0)
2022-04-04 23:09:52.476  INFO 1484 --- [           main] com.example.demo.DemoApplication         : The following 1 profile is active: "dev"
2022-04-04 23:09:52.960  INFO 1484 --- [           main] com.example.demo.DemoApplication         : Started DemoApplication in 0.924 seconds (JVM running for 1.605)

Process finished with exit code 0

Comment From: Jzow

This is different from the version I used in 2.6. There is no program listening port at startup, and the service is not running normally

Comment From: bclozel

Did you mean to add the spring-boot-starter-web instead of spring-boot-starter? With the latter, the behavior you're describing is expected.

Comment From: Jzow

@bclozel Thank you very much for your timely reply. I can use it normally after I join the web dependency

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

In addition, I also want to know where to view the relatively large internal updates of 3.0 except replacing Jakarta and upgrading java version to 17.

Comment From: bclozel

You'll find information in the release notes.