With 150+ changes Bricks 1.5 provides an even more powerful & streamlined workflow & builder interface 
Bricks 1.5 Highlights:
- Layout elements (section, container, block, div)
- Nestable elements + API
- Slider
- Accordion
- Tabs
- Add Conditional Display Logic via new filter: bricks/element/render
- Structure panel:
- Supports right-click context menu
- Sticky structure header
- Enable “clone” & “delete” icon (Bricks > Settings > Builder)
- Collapse structure items (Bricks > Settings > Builder)
- Global classes:
- Show active classes in element panel
- Open classes UI via “CMD / CRTL + ENTER”
- Select classes via “Arrow Up / Down + ENTER”
- Disable classes UI (Bricks > Settings > Builder)
- Query Loop: Support post type “Media” (attachment)
- Infinite Scrolling (Query Loop, Posts element)
- Color palette:
- Add RAW color value (web-safe color or CSS variable)
- Reorder colors via drag & drop
- Set default color palette (checkbox when editing color palette)
- Show color value tooltip when hovering over color control
- Code element:
- Run non-PHP code immediately
- Run PHP code on save, mousemove, or “CMD / CRTL + R” shortcut
- New experimental setting: “Add element ID & class as needed”
- New keyboard shortcut: Hold “SHIFT” to edit new element directly after inserting it
- New keyboard shortcut: Hold “CMD / CRTL” to insert new element directly after active element
- font-family & font-weight placeholder show inherited value
- Pin global elements
- frontend.min.css 58% smaller
… and much much more 
Full 1.5 changelog entry: https://bricksbuilder.io/changelog/#1.5