New Changes

Our team has completed a major assessment of the ontology of our patterns, and have since come up with the following changes:

Patterns are now classified as either sections, blocks, or sub-patterns. More details around this coming soon to our website!
Reclassified a handful of components as sub-patterns:
- ButtonGroup
- TableOfContents
- Layout
- ContentGroup
- CardLink
With the above, we have also decided to decommission the @carbon/ibmdotcom-patterns-react package, and have all fall under the @carbon/ibmdotcom-react package. All README files have been updated to reflect the new change, which for the most part should just be repointing the pattern imports to the new package.
Many pattern names have been renamed and restructured based on the new pattern ontology. They will still remain behind a feature flag until all has been finalized and we deem to be production ready.

Features

Learn Page template

Table of Contents (#1064 ): Includes feature request to dynamically generate the links based on the page content.
Content block - mixed (#1263 ): Alpha version behind a feature flag.
Content block - segmented (#1267 ): Alpha version behind a feature flag.
Content block - simple (#1275 ): Alpha version behind a feature flag.
Content block - with media (#1238 ): Alpha version behind a feature flag.
Content group - simple (#1243 ): Alpha version behind a feature flag.
Content group - with cards (#1172 ): Alpha version behind a feature flag.
Content group - with pictograms (#1165 ): Alpha version behind a feature flag.

Production level QA testing will be performed on the patterns listed above. Known QA issues will be resolved in the March release.

Masthead (#355): New look, L0/L1 navigation, search bar with typeahead, profile icon for login/logout
Dotcom Shell (#546): A UI shell structure includes Masthead and Footer providing a starting point for building an IBM.com page.