Companion module for the ankurm.com article Spring Framework 7.1 and Spring Boot 4.2: What's Coming and How to Prepare. Everything runs against Spring Boot 4.2.0-RC1 (Spring Framework 7.1.0-RC1; a release candidate, not GA) and, for the before/after comparison, against 4.1.2 (GA). JDK 25.

Path	What it is
`pom.xml` / `pom-41.xml`	the same project on 4.2.0-RC1 and on 4.1.2 (a `${revision}` parent does not resolve from a repository, hence two files)
`src/test/.../DefaultValuePlaceholderTest`	`@DefaultValue` with a `${...}` placeholder: resolved on 4.2, literal text on 4.1.2 (and a startup failure for an `int`)
`src/test/.../KafkaAdminBindingTest`	the new `spring.kafka.template.admin.` / `listener.admin.` keys: 5 of 5 bind on 4.2, 0 of 5 on 4.1.2 with no error
`src/test/.../LdapEmbeddedSslTest`	embedded LDAP `ssl.enabled=true` without a bundle: fails on 4.2, starts on 4.1.2
`src/test/.../MigratorTest`	what `spring-boot-properties-migrator` prints for the relocated Tomcat keys and the removed path-matching key
`src/broken/UsesRestTemplate.java`	not built; `scripts/compile-broken.sh` compiles it with `-Xlint:deprecation` and keeps the compiler's own message
`output/`	every transcript quoted in the article; `./scripts/run-all.sh` regenerates them

Run: ./scripts/run-all.sh. Not executed here (they need Docker or a registry): the new default buildpack builder and the image-based build cache.

There is deliberately no docs/ folder: the explanations live in the article.