This release adds some new features and fixes several bugs found in the previous release. This release also has some breaking changes, so please read the following closely.
Private class fields are now at Stage 2 in the JavaScript standard process. It's not finalized yet, but the JavaScript standards committee expects the feature to be developed and eventually included in the standard.
When we write CSS, sometimes we forget about some edge cases in the designs. For example, when the content is longer than we expected and we didn't account for that possibility, our design could break.
React and Vue are ostensibly very similar and I have shipped projects using both. They both use a virtual DOM and they are both narrowly-focused view libraries. They are both solutions to the same problem as reactive HTML rendering tools but I believe they have a single defining difference that cascades down through your entire workflow. React fully embraces Javascript, Vue does not.
In a Google spreadsheet Jens has collected the Top 200 of content sites in the The Moz Top 500, and taken another 20 sites related to web development for comparison. He then used the extremely useful CSS Stats to determine the total number of CSS declarations, as well as the number of unique declarations, to calculate ratios as well as averages: You get the idea as soon as you check out said spreadsheet.