2021-10-28

Features:

• Upgraded to Gatsby v4
• U by UAG collection pages and product pages now use DSG (Deferred Static Generation). See explanation below.
• The copyright text in the Footer should now use the current year

Bug fixes:

• Fixed bug where searching by SKU sometimes caused the Search component to render a blank screen

DSG or Deferred Static Generation

Gatsby v4 introduces DSG, which allows us to defer non-critical page generation until user request.

Instead of being generated at build time, deferred pages are built and cached when accessed by a user at run time.

1. Netlify skips these pages during the build phase
2. User A visits /products/some-u-product. Since this is the first time any user has visited this URL since this build was deployed, a worker builds and serves this page to User A and then caches the page for the next visitor.
3. User B visits /products/some-u-product. Since User A previously visited this page, the CDN serves User B the cached version.

This should significantly speed up builds while allowing us to choose which pages to generate at build time.