Pale Moon unstable releases - release notes

These release notes are for pre-release versions of Pale Moon. They may include notes for public betas and the "rolling" unstable channel.
Please understand that these release notes are concise summaries, nothing more, and not an exhaustive record of all changes.

If you find bugs in these versions, please report them in the issue tracker on GitHub for UXP. When you do so, please check if the bug has already been reported before by others to prevent duplicate entries in the tracker. If you report bugs, make sure to include the build date (as found in the about box) and provide clear information about the bug:
  • Clear indication of what version of the browser this was found in (x86, x64, Windows, Linux, exact version and build (see "About" box))
  • Clear description of the bug found, with a concise and clear title for the issue
    (include exact circumstances and exact error messages, if any)
  • Steps to reproduce
    (what exactly do you do to cause the bug to become apparent?)
  • Expected results
    (given the steps taken, what did you expect the browser to do?)
  • Actual results
    (what did the browser do instead of what was expected?)
Also make sure that before you report a bug, that you verify if the bug also manifests with default preferences and no installed add-ons (preferably create a new profile to check).

Current trunk progress (major and recent changes only):

  • New milestone modular setup: Pale Moon has been split off from the UXP platform repository and will be maintained as its own application with UXP as a platform module.
  • Implemented asynchronous iterators (await iterator.next() and for await loops) (ES2018)
  • Aligned document.open() with the overhauled specification.
  • Implemented promise-based media playback.
  • Fixed a potential pointer issue issue in cubeb. (DiD)
  • Enabled layers acceleration by default on GTK-based platforms.
  • Aligned the way DOM styles are computed with mainstream browser behavior.
  • Removed the (unused) DOM promise implementation.
  • Changed the default monospace font for main languages from Courier New to Consolas.
    This provides a more balanced font for fixed-width text that is slightly more condensed and more in line with the naturally compacter variable-width fonts used everywhere else.
  • Increased the maximum XML nesting depth to 2048 levels for extreme corner cases and to conservatively align with other browsers.
  • Updated NSPR to 4.24 and NSS to 3.48-RTM, removing the previous custom patch level with NSS being able to support custom rounds for DBM now.
    For extensive release notes with all NSS changes, see NSS_Releases
  • Implemented an NSS performance optimization for Master Password use with limited effect.
  • Implemented non-standard legacy CSSStyleSheet rules functions.
  • Implemented the html5 <dialog> element. To switch this on, flip dom.dialog_element.enabled to true.
  • Disabled some logging in production builds.
  • Disabled allowing remote jar: URIs by default for security reasons. If you need this functionality for your non-standard environment, you can enable it with the preference network.jar.block-remote-files, but please consider moving away from this method of providing web-based applications.
  • Enabled seeking to next frame in media files.
For a more detailed and complete list of changes, check out the commit log.

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