chore: release (#255)

Author: mllg

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: mlr3learners
 Title: Recommended Learners for 'mlr3'
-Version: 0.5.4-9000
+Version: 0.5.6
 Authors@R: c(
     person("Michel", "Lang", , "[email protected]", role = c("cre", "aut"),
            comment = c(ORCID = "0000-0001-9754-0393")),
@@ -50,7 +50,7 @@ Encoding: UTF-8
 NeedsCompilation: no
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.2.3
-Collate: 
+Collate:
     'aaa.R'
     'LearnerClassifCVGlmnet.R'
     'LearnerClassifGlmnet.R'

NEWS.md

@@ -1,5 +1,8 @@
-# mlr3learners 0.5.4-9000
-* fix: unloading `mlr3learners` removes learners from dictionary.
+# mlr3learners 0.5.5
+
+- Enable new early stopping mechanism for xgboost.
+- Improved documentation.
+- fix: unloading `mlr3learners` removes learners from dictionary.
 
 # mlr3learners 0.5.4