Create transition-updated-cr-2017-09.md

Author: svgeesus

css-writing-modes-3/transition-updated-cr-2017-09.md

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+(from [updated cr transitions](https://www.w3.org/Guide/transitions?profile=CR&cr=substantive) )
+
+# Transition request for updated CR: Flexbox 
+
+## Document title, URIs, and estimated publication date
+
+CSS Writing Modes Level 3
+
+https://drafts.csswg.org/css-writing-modes-3/
+
+First Tues or Thurs after a successful transition decision.
+
+
+## The document Abstract and Status sections
+
+[abstract](https://drafts.csswg.org/css-writing-modes-3/#abstract)
+
+[status (as ED)](https://drafts.csswg.org/css-writing-modes-3/#status)
+
+## Link to previous transition
+
+[09 Nov 2015](https://lists.w3.org/Archives/Member/chairs/2015OctDec/0097.html) (W3C Member only)
+
+## Decision to request transition
+
+RESOLVED: Add "size of nearest fixed scrollport" to the list of things you clamp orthogonal flow inline sizes to, editing the CR.
+
+[minutes, 04 Aug 2017 telcon](https://github.com/w3c/csswg-drafts/issues/1391#issuecomment-320215251)
+
+## Changes
+
+* Three features were deferred to Level 4. These were all listed as "at-risk" in the Candidate Recommendation. A fourth feature was marked as "at-risk" but has been retained.
+* A Privacy and Security Considerations section was added, the contents of which say 'This specification introduces no new privacy leaks, or security considerations beyond "implement it correctly".' This is not a substantive change.
+* [Issue 1391](https://github.com/w3c/csswg-drafts/issues/1391) was a substantive change
+
+[Changes since the December 2015 CR](https://drafts.csswg.org/css-writing-modes-3/#changes-201512)
+
+## Requirements satisfied
+
+(no formal requirements document)
+
+This specification helps meet requirements listed in [Requirements for Japanese Text Layout](https://www.w3.org/TR/jlreq/) 
+in particular section "2.3 Vertical Writing Mode and Horizontal Writing Mode".
+It also meets requirements listed in an (early ED of) [Text Layout Requirements for the Arabic Script](https://w3c.github.io/alreq/)
+in particular section "2.3 Direction".
+The number 2.3 has no numerological significance here.
+
+## Dependencies met (or not)
+
+The following normative references are not yet at CR:
+
+* CSS Display Module Level 3
+* CSS Inline Layout Module Level 3
+* CSS Overflow Module Level 3
+* CSS Positioned Layout Module Level 3
+* CSS Ruby Layout Module Level 1
+* CSS Text Module Level 3
+* Cascading Style Sheets Level 2 Revision 2 (CSS 2.2) Specification
+* CSS Intrinsic & Extrinsic Sizing Module Level 3
+* CSS Paged Media Module Level 3
+
+These are primarily to link to the latest definitions of each term.
+
+## Wide Review
+
+The specification has been reviewed in depth by the I18N Core Working group. Internationalization has published the 
+following articles which explain how to use CSS Writing Modes 3.
+
+* [Styling vertical Chinese, Japanese, Korean and Mongolian text](https://www.w3.org/International/articles/vertical-text/)
+* [CSS and International Text](https://www.w3.org/International/articles/css3-text/index)
+   
+## Issues addressed
+
+The [Disposition of Comments](https://drafts.csswg.org/css-writing-modes-3/issues-cr-2015) 
+
+:boom: or is it this one [Disposition of Comments on GH](https://github.com/w3c/csswg-drafts/issues?utf8=%E2%9C%93&q=is%3Aissue%20label%3Acss-writing-modes-3%20)
+
+Of the 23 issues raised, 12 were accepted. Three were rejected, and the commenter indicated they were satisfied. 
+Three comments were invalid. One, calling for a Japanese translation of the specification to be linked, was 
+rejected as out of scope (translations may be provided by third parties of W3C Recommendations, following the usual procedure). 
+
+## Formal Objections
+
+None
+
+## Implementation
+
+The specification is [widely implemented](http://caniuse.com/#feat=css-writing-mode), although Safari on OSX and iOS 
+still uses a -webkit- prefix. We would expect Apple to support the unprefixed property once Writing Modes progresses 
+to W3C Recommendation.
+
+The [testsuite](https://test.csswg.org/harness/results/css-writing-modes-3_dev/grouped/filter/1/) shows that
+985 of 1143 required tests meet CR exit criteria, and 8 of 17 optional tests meet CR exit criteria.
+
+An [analysis of the test results](https://drafts.csswg.org/css-writing-modes-3/implementation-report.html) is also available
+  
+
+:boom:  the tests for features moved to Level 4 are still marked as level 3 tests, so need to be edited to make them Level 4 tests
+
+## Patent disclosures
+
+[none](https://www.w3.org/2004/01/pp-impl/32061/status)