diff --git a/docs/index.md b/docs/index.md
index b9938f6e6..3ec9b08aa 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -13,8 +13,9 @@ Welcome to **The Internals of {{ book.title }}** online book! 🤙
 I'm [Jacek Laskowski](https://pl.linkedin.com/in/jaceklaskowski), a Freelance Data(bricks) Engineer specializing in
 [Apache Spark](https://books.japila.pl/apache-spark-internals/) (incl. [Spark SQL](https://books.japila.pl/spark-sql-internals/) and [Spark Structured Streaming](https://books.japila.pl/spark-structured-streaming-internals/)),
 [Delta Lake](https://books.japila.pl/delta-lake-internals/),
+[Unity Catalog](https://books.japila.pl/unity-catalog-internals/),
 [Databricks](https://www.databricks.com/),
-and [Apache Kafka](https://books.japila.pl/kafka-internals/) (incl. [Kafka Streams](https://books.japila.pl/kafka-streams-internals/)) with brief forays into a wider data engineering space (e.g., [Trino](https://trino.io/), [Dask](https://www.dask.org/) and [dbt](https://www.getdbt.com/), mostly during [Warsaw Data Engineering](https://www.meetup.com/Warsaw-Data-Engineering/) meetups).
+and [Apache Kafka](https://books.japila.pl/kafka-internals/) (incl. [Kafka Streams](https://books.japila.pl/kafka-streams-internals/)) with brief forays into a wider data engineering space (mostly during [Warsaw Data Engineering](https://www.meetup.com/Warsaw-Data-Engineering/) meetups).
 
 I'm very excited to have you here and hope you will enjoy exploring the internals of {{ book.title }} as much as I have.
 
diff --git a/mkdocs.yml b/mkdocs.yml
index 1182ac63c..3aff106e9 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -7,7 +7,7 @@ repo_name: delta-lake-internals
 repo_url: https://github.com/japila-books/delta-lake-internals
 edit_uri: edit/main/docs/
 
-copyright: Copyright © 2024 Jacek Laskowski
+copyright: Copyright © 2024-2025 Jacek Laskowski
 
 theme:
   name: material
@@ -100,9 +100,9 @@ extra:
     structured_streaming: https://books.japila.pl/spark-structured-streaming-internals
     spark_core: https://books.japila.pl/apache-spark-internals
   delta:
-    version: 3.2.1
+    version: 3.3.0
     blog: https://delta.io/blog
-    github: https://github.com/delta-io/delta/blob/v3.2.1
+    github: https://github.com/delta-io/delta/blob/v3.3.0
     commit: https://github.com/delta-io/delta/commit
     issues: https://github.com/delta-io/delta/issues
     databricks: https://docs.databricks.com/delta
@@ -127,14 +127,12 @@ extra:
   social:
     - icon: fontawesome/brands/github
       link: https://github.com/jaceklaskowski
-    - icon: fontawesome/brands/twitter
-      link: https://twitter.com/jaceklaskowski
+    - icon: fontawesome/brands/bluesky
+      link: https://bsky.app/profile/books.japila.pl
     - icon: fontawesome/brands/linkedin
       link: https://linkedin.com/in/jaceklaskowski
     - icon: fontawesome/brands/medium
       link: https://jaceklaskowski.medium.com
-    - icon: fontawesome/brands/mastodon
-      link: https://fosstodon.org/@jaceklaskowski
   spark:
     version: 3.5.3
     docs: https://spark.apache.org/docs/3.5.3