: Enhanced TypeScript 3.1 integration, including support for mappable tuple and array types.

GoLand 2018.3 introduced several significant capabilities that were further refined in the 2018.3.1 patch:

: Introduced the Change Signature refactoring, allowing users to modify functions and methods in a few clicks, and upgraded the Inline refactoring.

For a full list of addressed issues, you can review the official GoLand 2018.3 Release Notes on JetBrains YouTrack. 3.x updates? GoLand 2018.3 Release Notes - JetBrains YouTrack

: New inspections like Unhandled Error (alerts when returned errors aren't checked) and Unreachable Code were added.

: Requires an SFTP subsystem and a glibc-based Docker image for remote backends.

: Fixed a bug where "Introduce variable" could break existing code and improved receiver type completion for getters/setters.