You can now specify aliases in front matter. These will then show up in the [[ link suggestion, and auto-complete to [[Filename|alias]]. They will also be picked up in unlinked mentions. For example: aliases: [AI, Artificial Intelligence]. Add double quotes around your alias if it contains special characters.
You can now specify tags in front matter. These will then show up in the tag pane, as well as in search queries using the tag: operator. For example: tags: ["#pkm", "#hype"].
Improvements
Command palette and Quick switcher will now restore your cursor or selection when exiting.
No longer broken
Graph filter tag operators no longer operate on links to non-existent files.
The duplicate menu item "Copy obsidian url" has been removed from the more options menu.
On Windows, you should now be able to drag the window from the top when it's maximized.
Developers
frontmatter is now available in CachedMetadata.
Some helper functions for front matter parsing are made available: parseFrontMatterEntry, parseFrontMatterStringArray, parseFrontMatterAliases and parseFrontMatterTags.
The css class mod-root is now always added to the workspace center area.
Deprecations: (the old name will remain in code for backward compatibility for a while)
Setting.addExtraSetting has been renamed to addExtraButton.
Workspace.getActiveLeafOfViewType has been renamed to getActiveViewOfType.