Joe Glombek discusses how to integrate blocks into the Rich Text Editor (RTE) in Umbraco, replacing macros. Users can create "element" document types, add a Block button to the RTE toolbar, and configure settings for rendering. An example demonstrates rendering a phone number block with custom logic.
Joe Glombek discusses a method to migrate macros to blocks in Umbraco 14, which eliminates macro support. He outlines creating a `RichTextBoxMacrosToBlocksMigrator` that maps macros to blocks using custom mappings and JSON serialization. The code sample demonstrates the implementation of this migration process.