diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba3c5ad89..d16627a3e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,8 +2,13 @@
 
 ## [Unreleased]
 ### Added
+- `fun` annotation for SAM interfaces in library
+- Explicit `public` visibility for all public APIs
 
 ### Changed
+- Gradle version: 6.6 -> 6.6.1
+- Minor exceptions refactor (throwing `IllegalArgumentException` by argument checks instead of `IllegalStateException`)
+- `Polynomial` secondary constructor made function.
 
 ### Deprecated
 
@@ -39,7 +44,7 @@
 - `power(T, Int)` extension function has preconditions and supports `Field<T>`
 - Memory objects have more preconditions (overflow checking)
 - `tg` function is renamed to `tan` (https://github.com/mipt-npm/kmath/pull/114)
-- Gradle version: 6.3 -> 6.6.1
+- Gradle version: 6.3 -> 6.6
 - Moved probability distributions to commons-rng and to `kmath-prob`
 
 ### Fixed
diff --git a/kmath-commons/build.gradle.kts b/kmath-commons/build.gradle.kts
index b64b855a4..1ff88465d 100644
--- a/kmath-commons/build.gradle.kts
+++ b/kmath-commons/build.gradle.kts
@@ -5,6 +5,5 @@ dependencies {
     api(project(":kmath-core"))
     api(project(":kmath-coroutines"))
     api(project(":kmath-prob"))
-//    api(project(":kmath-functions"))
     api("org.apache.commons:commons-math3:3.6.1")
 }