Library upgrades

- [Instructor] So just like we saw with Spring 5.0,…Spring Boot 2.0 had some pretty significant library changes,…many of which actually rely on Spring 5.…The JDK is one of those situations.…So Spring 2 now relies on the underlying changes…to Spring 5, and as such, JDK 8 is required.…JDK 9 support came out of the box when it was released.…JDK 10 and JDK 11 are supported along the same line.…I would encourage you because JDK 8…is now deprecated that JDK has 11 out as is 9 and 10.…

Do all of your work going forward with JDK 11.…So, as we've noted Spring 5 is now required,…so that is one of the major upgrades.…And as such, any time you upgrade your application…from Spring Boot, say 1.5.4 to 2.0.4…or whatever the latest version…is now, you're going to have to take into account…the fact that Spring has changed as well.…So you made need to make changes…to the construct itself during this upgrade.…And all of the library upgrades really fall in line…with that upgrade to Spring 5.…

The core library, for instance,…Tomcat 8.5 is now the default embedded…