v0.14.2

Changed

• Updated bundled version of TypeScript to 4.4.3.
• Internal refactoring of language service.

v0.14.1

Changed

• GitHub org changed from PolymerLabs to google.

v0.14.0

Changed

• Upgrade to Lit 2.0.
• TypeScript files are now compiled incrementally for improved performance

v0.13.0

Changed

• Node package exports
  are now supported when resolving dependency modules.

  The module, import, and development
  conditions
  are enabled.

  Note this change should not theoretically be BREAKING, but this release is
  versioned with a major increment because there a risk of breakage in practice
  due to misconfigured package.json files, differences between prod and
  dev modes, etc.

Added

• Added modified property to <playground-project> and <playground-ide>
  which indicates whether the user has modified, added, or removed any project
  files. Resets whenever a new project is loaded.

v0.12.1

Changed

• If a file is marked hidden, and the user creates a new file by that name,
  the file will become visible and editable.

v0.12.0

Fixed

• Fixes duplicate module errors by canonicalizing all import specifiers. Import
  specifiers are now canonicalized by version number and default module. This
  applies both to local project files, and throughout the entire external
  dependency tree.

• Import maps now apply to modules in external dependencies, not just to local
  project files.

• The TypeScript compiler can now deal with multiple versions of the same
  dependency. Previously, if the import graph included two versions of the same
  package, only one arbitrary version of the types would be compiled. This
  caused various errors and missing type issues.

Changed

• If the project contains a package.json file, then its
  dependencies
  field will be used to determine the version of dependencies (just like how NPM
  works locally).

• Dependencies are now served from the special
  "<service-worker-scope>/node_modules/..." path, instead of directly from
  https://unpkg.com/...?module URLs. Behind-the-scenes, dependencies are still
  fetched from unpkg, but they are now themselves transformed to ensure correct
  specifier canonicalization.

• BREAKING Due to large changes to the way dependencies are handled, there
  is some risk of breakage due to subtle behavior changes that existing
  configurations may be relying on. Therefore, this release is versioned with a
  major increment.

v0.11.1

Added

• Added MIME-type detection for the following project file extensions: gif,
  ico, jpeg, jpg, mid, midi, mp3, png, svg, weba, webm,
  webp.

v0.11.0

Fixed

• Playgrounds now ensure that the service worker they are connected to have a
  matching version. Fixes issues relating to playgrounds being broken for some
  time after an upgrade.

• The --playground-tab-bar-font-size CSS custom property now behaves as
  documented, and defaults to 14px.

• The --playground-floating-controls-color CSS custom property now behaves as
  documented.

• Fix missing .js extension from import in build.js that may have broken
  Webpack and other builds.

• The hover effect and touch area for tabs in the tab bar are no longer offset
  by the height of the active tab indicator.

• Fix bug that caused failures to load d.ts files and "Could not resolve
  module specifier" console errors when using import maps.

Changed

• BREAKING playground-base-url is now resolved relative to the
  import.meta.url of the module containing the definition of
  <playground-project>, instead of relative to document.location.href as
  before. This means that . can now be used to refer to the local playground
  installation directory.

• The service worker now sets the Origin-Agent-Cluster: ?1 heading on all
  responses, to encourage browsers to allocate a separate process or thread for
  Playground preview iframe under certain conditions. See the Process
  isolation
  section of the README for more details.

• It is now possible to change the font-family of the tab-bar using a
  ::part(tab-bar) selector.

v0.10.1

Changed

• Bumped MWC dependency versions.

v0.10.0

Added

• Adds --playground-code-padding and --playground-code-line-padding for
  configuring code editor padding.

• Bare module specifiers are now transformed in dynamic import() statements.

Changed

• BREAKING The src/ directory is no longer published to NPM.

• BREAKING .js files are no longer compiled by TypeScript, so they cannot
  contain types, decorators, or other TypeScript-specific syntax.

• Previews will now begin loading immediately, instead of waiting for
  compilation to completely finish, and each .js file is served as it
  compiles.