Media Queries Level 4 specification has introduced a new syntax for writing media queries that have a range type. We can now use common mathematical comparison operators like <, >,<=, >= instead of min/max prefixes.
Serializing store objects with ActiveSupport::HashWithIndifferentAccess is both a wasteful and an insecure option. Instead Rails now encodes store as a regular hash and casts it back to HWIA before accessing.
Tree shaking is a technique used by webpack to optimize the builds for production and reducing the build size by shaking off the dead code from its branches (modules).
Rails warns users of pending migrations now by showing the path of the migration file, instead of just the name. This is useful in multi-db applications.
Earlier the tsrange/tstzrange column would throw a TypeError if a timezone was set in the application config. This column now stores time with the correct timezone.
Similar to the working of the model generator, the job generator now accepts the --parent option. This allows one to generate a job that inherits from the specified parent class.
overflow: clip and overflow: hidden both do the same job of hiding content that overflows. However, overflow: clip also disables programmatic scrolling. Another property overflow-clip-margin controls how far from the element's edge the clipping begins.
