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Are there any details on when WP 4 will be released?

Is it true it will be a fundamental re-write using considerable Ajax?

I am really interested in the following issue which is reported as included in 4.0


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up vote 4 down vote accepted

Release Date:

WordPress 4.0 is planned for August 27September 3, 2014


WordPress 4.0 Release:

[...] For those unaware, for WordPress, version 4.0 sounds like a “big” version number but it’s just another major release for us, like 3.9 and 4.1, constructed over the same ~4-month release cycle. [...]


For WordPress 4.0 features follow http://make.wordpress.org Planned features at the moment: http://make.wordpress.org/core/2014/05/09/summary-of-5-7-dev-chat-irc-log/

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Do you think issue core.trac.wordpress.org/ticket/14134 will be included? – p.a. May 27 '14 at 11:11
Well that would just be guessing. Best would be to follow the issue and maybe even helping to close it. – kraftner May 27 '14 at 12:38
Can you guess if this issue will be included in 4.0 due this week? Thank you – p.a. Aug 27 '14 at 9:20
@p.a. Well have a look at the issue linked to above and see that it isn't closed, so no. – kraftner Aug 27 '14 at 9:50
Today? It's not out yet AFAICS? – Rup Sep 3 '14 at 8:57

If by AJAX rewrites you mean significant rewriting of the wp-views shortcode system backed by Backbone and Ajax, yes, it is significantly different than 3.9.

From what I've tested, this is the most significant change as it is still a bit buggy and breaking existing code - see for example 29115 (mostly fixed by now), renamed important constants used in TinyMCE modules that could break some plugins (28458, 29130)

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