Among many improvements, Beaker v1.3 has: Access to Spark clusters with PySpark and SparkR. Support for new languages Clojure and Kdb. A new editor for markdown

Among many improvements, Beaker v1.3 has: Access to Spark clusters with PySpark and SparkR. Support for new languages Clojure and Kdb. A new editor for markdown and section headings that allows inline math, vim keybindings, and handles special characters. Improved indentation and editing, including tab as a synonym for autocomplete. A new UI for data frames that includes formatting of each column. Allow users to generate files from code cells and access the results with HTML. Too many performance and bug fixes to count.