How to Migrate SpringBoot 2 to Spring boot 3 and Spring boot 2.5 to 2.7 or 3 | detail step explained

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Detail steps and explanations or upgrade your spring boot project 2 to 3.
How to migrate the spring boot project from spring-boot 2 to spring-boot 3.
Link and details provided at the bottom of this section.

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► Important Information and code guide available at bottom of the Description ⤵️

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► Important Information about this Tutorial
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A Java 17 baseline and spring FW 6.0
Support for Jakarta EE 10 with an EE 9 baseline
Support for generating native images with GraalVM, superseding the experimental Spring Native project
Improved observability with Micrometer and Micrometer Tracing
Third-party Library Upgrades

Steps :::::::::::::::::::==============::::::::::::::::
Step: Install JDK 17 in your System.
Step: Upgrade your project to latest available Spring Boot 2.7.X Step: Review Existing Dependencies.
Step: Review Specific to Spring Security Dependency
Step: Review Deprecations class/dependencies from Spring Boot 2
Step: Upgrade to Spring Boot 3.
Step: Fix Compilation Errors and Deprecated elements
Step: Configuration Properties Migration
Step : Update packages starting from ‘javax’ to ‘jakarta’
Step: Verify upgrades on Core Changes if any
Step: Review Upgrades on Web Applications

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Could you please tell how to include profiles in 2.7.3

tejaswiniakula
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I upgraded the spring boot to 3.3.2 and spring kafka to 3.2.2 to resolve compatibility and kafka client to 3.7.0 but i am getting NoSuchMethodError: java.util.Map

tinytalesbyM
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i had a project of spring boot 2.7.0 and it doesnt require java 17 tho....spring 3.0 requires java 17+

paulsnehasish
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i have to upgrade from spring boot 2.5 .3 to 2.7.14 i am using java 11 is it correct ?

ayusheesrivastava
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Anyone help me I need to upgrade java7 to java8 in spring mvc 3.1.2. Did anyone have idea how to do?

deepshikhavandana
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Why is it important to migrate to 2.7.x first? Can't i migrate directly to Spring Boot 3.2 from my current version 2.5 @TechTalkDebu

rohitraghav