Immutables

@ImmutablesOrg

Java annotation processor to generate Immutable classes, Builders, with a Style!

Florida, US

Immutables
@ImmutablesOrg
Oct 11
v2.12.3 released. Has some fixes to Jackson 3 as meta-annotations, TYPE_USE Nullable refinements. New experimental (at)Value.Parameter(optional = true) and some other fixed. Thanks to all contributors for the PRs and bug reports! immutables.org/newandnice.html
Immutables
@ImmutablesOrg
Jan 6
v2.12.1 released. Mostly fixes for some cases and added Java 25/javac to the build matrix. As always, want to thank all for bug reports and PRs!
Immutables
@ImmutablesOrg
Dec 9, 2025
3/3 ... and many more, and, at last, some more documentation on the updated immutables.org !
Immutables
@ImmutablesOrg
Dec 9, 2025
The release is called "12 Anniversary Edition". Yep, 12 years since late 2013/early 2014 when first pre-1.0 releases of Immutables were published. Now we have first-class record builders, improved nullable as type annotations (JSpecify), Jackson 3 integration 2/2+1
Immutables
@ImmutablesOrg
Dec 9, 2025
I want to thank you all contributors for all the bug reports, PRs, and feedback, that's enormous and helped project to catch up in 2025! Today we've released v2.12.0 , which is a minor update, but sort of concludes all updates, bug-fixes and refinements done this year. 1/2