diff --git a/.gitattributes b/.gitattributes
index e2b21a8d7..10520bf88 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -16,20 +16,22 @@
 *.yml  text
 
 # Ensure those won't be messed up with
+*.phar binary
 *.png  binary
 *.jpg  binary
 *.gif  binary
 *.ttf  binary
 
-# Ignore some meta files when creating an archive of this repository
-/.github            export-ignore
-/.editorconfig      export-ignore
-/.gitattributes     export-ignore
-/.gitignore         export-ignore
-/phpunit.xml.dist   export-ignore
-/docs               export-ignore
+# Exclude development and metadata files from distribution archive
+*                 export-ignore
+/src/            -export-ignore
+/src/**          -export-ignore
+/.meta-storm.xml -export-ignore
+/composer.json   -export-ignore
+/README.md       -export-ignore
+/CHANGELOG.md    -export-ignore
+/LICENSE.md      -export-ignore
 
 # Avoid merge conflicts in CHANGELOG
 # https://about.gitlab.com/2015/02/10/gitlab-reduced-merge-conflicts-by-90-percent-with-changelog-placeholders/
 /CHANGELOG.md		merge=union
-
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8c3af159..a107aee78 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## 1.0.1 under development
 
 - Bug #527: Fix PHPDoc tags `@see` (@mspirkov)
+- Enh #532: Remove unnecessary files from Composer package (@mspirkov)
 
 ## 1.0.0 December 09, 2025