The SeaMonkey 2.53.13 set of Internet applications has been released, which combines a web browser, an email client, a news feed aggregation system (RSS / Atom) and a WYSIWYG html page editor Composer within one product. The Chatzilla IRC client, the DOM Inspector web development toolkit, and the Lightning calendar scheduler are offered as preinstalled add-ons. The new release brings fixes and changes from the current Firefox codebase (SeaMonkey 2.53 is based on the Firefox 60.8 browser engine, porting security-related fixes and some improvements from current Firefox branches).
In the new version:
- The build configuration has been updated and the build system scripts have been translated from Python 2 to Python 3.
- Transferred updated tools for web developers.
- Added optional support for the Promise.allSettled() method, which returns only already fulfilled or rejected promises, ignoring pending promises (allows you to wait for the execution result before running other code).
- Removed Firefox-specific deprecated array abstraction syntax (Array comprehensions, the ability to create a new array based on another array).
Source: opennet.ru