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diff --git a/doc/rfc/rfc9233.txt b/doc/rfc/rfc9233.txt new file mode 100644 index 0000000..f36302d --- /dev/null +++ b/doc/rfc/rfc9233.txt @@ -0,0 +1,1321 @@ + + + + +Internet Engineering Task Force (IETF) P. Fältström +Request for Comments: 9233 Netnod +Category: Standards Track March 2022 +ISSN: 2070-1721 + + + Internationalized Domain Names for Applications 2008 (IDNA2008) and + Unicode 12.0.0 + +Abstract + + This document describes the changes between Unicode 6.0.0 and Unicode + 12.0.0 in the context of the current version of Internationalized + Domain Names for Applications 2008 (IDNA2008). Some additions and + changes have been made in the Unicode Standard that affect the values + produced by the algorithm IDNA2008 specifies. IDNA2008 allows adding + exceptions to the algorithm for backward compatibility; however, this + document does not add any such exceptions. This document provides + the necessary tables to IANA to make its database consistent with + Unicode 12.0.0. + + To improve understanding, this document describes systems that are + being used as alternatives to those that conform to IDNA2008. + +Status of This Memo + + This is an Internet Standards Track document. + + This document is a product of the Internet Engineering Task Force + (IETF). It represents the consensus of the IETF community. It has + received public review and has been approved for publication by the + Internet Engineering Steering Group (IESG). Further information on + Internet Standards is available in Section 2 of RFC 7841. + + Information about the current status of this document, any errata, + and how to provide feedback on it may be obtained at + https://www.rfc-editor.org/info/rfc9233. + +Copyright Notice + + Copyright (c) 2022 IETF Trust and the persons identified as the + document authors. All rights reserved. + + This document is subject to BCP 78 and the IETF Trust's Legal + Provisions Relating to IETF Documents + (https://trustee.ietf.org/license-info) in effect on the date of + publication of this document. Please review these documents + carefully, as they describe your rights and restrictions with respect + to this document. Code Components extracted from this document must + include Revised BSD License text as described in Section 4.e of the + Trust Legal Provisions and are provided without warranty as described + in the Revised BSD License. + +Table of Contents + + 1. Introduction + 2. Background + 2.1. IDNA2008 Documents + 2.2. Additional Important IDNA2008-Related Documents + 2.3. Deployment + 3. Notable Changes between Unicode 6.0.0 and 12.0.0 + 3.1. Changes between Unicode 6.0.0 and 7.0.0 + 3.2. Changes between Unicode 7.0.0 and 10.0.0 + 3.3. Changes between Unicode 10.0.0 and 11.0.0 + 3.4. Changes between Unicode 11.0.0 and 12.0.0 + 4. U+111C9 SHARADA SANDHI MARK + 5. Conclusion + 6. IANA Considerations + 7. Security Considerations + 8. References + 8.1. Normative References + 8.2. Informative References + Appendix A. Changes from Unicode 6.0.0 to Unicode 7.0.0 + Appendix B. Changes from Unicode 7.0.0 to Unicode 8.0.0 + Appendix C. Changes from Unicode 8.0.0 to Unicode 9.0.0 + Appendix D. Changes from Unicode 9.0.0 to Unicode 10.0.0 + Appendix E. Changes from Unicode 10.0.0 to Unicode 11.0.0 + Appendix F. Changes from Unicode 11.0.0 to Unicode 12.0.0 + Acknowledgments + Author's Address + +1. Introduction + + The current version of Internationalized Domain Names for + Applications (IDNA) was initiated in 2008, and despite not being + completed until 2010, is widely known as "IDNA2008". It is specified + in the series of documents listed in Section 2.1. The IDNA2008 + standard includes an algorithm by which a derived property value is + calculated based on the properties defined in the Unicode Standard. + + The derived property values that can be calculated are defined in RFC + 5892 [RFC5892]. Below is a summary to aid in the reading of this + document. For definition of the terms, please see RFC 5892 + [RFC5892]. + + PROTOCOL VALID: Those that are allowed to be used in IDNs. Code + points with this property value are permitted for general use in + IDNs. However, the fact that a label consists only of code points + with this property value does not imply that the label can be used + in DNS. The abbreviated term PVALID is used to refer to this + value. + + CONTEXTUAL RULE REQUIRED: Some characteristics of the character, + such as it being invisible in certain contexts or problematic in + others, require that it not be used in labels unless specific + other characters or properties are present. The abbreviated term + CONTEXT is used to refer to this value. As explained in RFC 5892 + [RFC5892], CONTEXT is in turn divided into CONTEXTJ and CONTEXTO. + + DISALLOWED: Those that should clearly not be included in IDNs. Code + points with this property value are not permitted in IDNs. + + UNASSIGNED: Those code points that are not designated (i.e., are + unassigned) in the Unicode Standard. + + When the Unicode Standard is updated, new code points are assigned + and already assigned code points can have their property values + changed. + + * Assigning code points can create problems if the newly assigned + code points are compositions of existing code points and the + normalization relationships associated with those code points + should have been changed because of that. + + * Changing properties for already assigned code points can create + problems if the property change results in changes to the derived + property value. A previously allowed code point whose derived + property value is PVALID may now be prohibited if its derived + property value changes to DISALLOWED. The problem can also happen + the other way around: a code point that was not allowed (and thus + was prohibited) can suddenly be allowed. + + * Problems can also be created if the properties assigned to those + code points are inconsistent with IDNA2008 assumptions about how + properties are assigned and/or about how code points with those + properties are used or behave. + + There were three incompatible changes in the Unicode Standard between + Unicode 5.2.0 [Unicode-5.2.0] and Unicode 6.0.0 [Unicode-6.0.0]; they + are described in RFC 6452 [RFC6452]. The code points U+0CF1 and + U+0CF2 had a derived property value change from DISALLOWED to PVALID, + and the code point U+19DA had a change in derived property value from + PVALID to DISALLOWED. These changes where examined in great detail, + but the IETF concluded that these changes to the Unicode Standard did + not warrant an update to RFC 5892 [RFC5892]. + + As described in Section 3, more incompatible changes have been made + to code points between Unicode 6.0.0 and Unicode 12.0.0 + [Unicode-12.0.0]; however, the changes in the derived property values + do not result in exceptions (as defined in Section 2.6 of RFC 5892 + [RFC5892]) that would require an update to the "IDNA Contextual + Rules" registry (which would also be considered an update to RFC 5892 + [RFC5892]). + + Further, in 2015, the Internet Architecture Board (IAB) issued a + statement [IAB2005-1] that advised the community to avoid using any + of the potentially problematic code points and asked the IETF to + resolve the issues related to the code point ARABIC LETTER BEH WITH + HAMZA ABOVE (U+08A1) that was introduced in Unicode 7.0.0 + [Unicode-7.0.0]. In February of that year, the statement was revised + [IAB2005-2] to focus on the latter request. More details about the + problem of code point sequences not normalizing as one might expect + appear in a draft that was part of the discussion [IDNA7]. + + The result of the work in the IETF was that no exception was added to + RFC 5892 [RFC5892]; however, it should be noted that the review of + the issues around U+08A1 indicated that this code point is not an + isolated case and that a number of long-standing PVALID code points + may have similar issues. While the affected code points remain + PVALID in this document, identification of the problem resulted in a + clarification of the review process for new Unicode versions. That + clarification, which reinforces the original review plan to capture + issues like these, was published as RFC 8753 [RFC8753]. Any review + of Unicode versions after 12.0.0 should be made according to RFC 8753 + [RFC8753]; an objective of this document is to ensure that a proper + review of such versions after version 12.0.0 can be made. + +2. Background + +2.1. IDNA2008 Documents + + IDNA2008 consists of the following documents. The documents in the + set have informal names. + + * "Internationalized Domain Names for Applications (IDNA): + Definitions and Document Framework" [RFC5890], informally called + "Defs" or "Definitions", contains definitions and other material + that are needed for understanding other documents in the set. + + * "Internationalized Domain Names in Applications (IDNA): Protocol" + [RFC5891], informally called "Protocol", describes the core + IDNA2008 protocol and its operations. It needs to be interpreted + in combination with the Bidi document (described below). RFC 5891 + [RFC5891] obsoletes RFC 3491 [RFC3491] and, in particular, the use + of the tables to which RFC 3491 [RFC3491] refers. + + * "The Unicode Code Points and Internationalized Domain Names for + Applications (IDNA)" [RFC5892], informally called "Tables", lists + the categories and rules that identify the code points allowed in + a label written in native character form (called a "U-label"), and + is based on Unicode 5.2.0 [Unicode-5.2.0] code point assignments + and additional rules unique to IDNA2008. The Unicode-based rules + in RFC 5892 are expected to be stable across Unicode updates and + hence independent of Unicode versions. + + * "Right-to-Left Scripts for Internationalized Domain Names for + Applications (IDNA)" [RFC5893], informally called "Bidi", + specifies special rules for labels that contain characters that + are written from right to left. + + * "Internationalized Domain Names for Applications (IDNA): + Background, Explanation, and Rationale" [RFC5894], informally + called "Rationale", provides an overview of the protocol and + associated tables, and gives explanatory material and some + rationale for the decisions that led to IDNA2008. It also + contains advice for DNS registry operators and others who use + Internationalized Domain Names (IDNs). + + * "Mapping Characters for Internationalized Domain Names in + Applications (IDNA) 2008" [RFC5895], informally called "Mapping", + discusses the issue of mapping characters into other characters + and provides guidance for doing so when that is appropriate. RFC + 5895 provides advice only and is not a required part of IDNA. + +2.2. Additional Important IDNA2008-Related Documents + + There are other documents important for the understanding and + functioning of IDNA2008, for example this. + + * "The Unicode Code Points and Internationalized Domain Names for + Applications (IDNA) - Unicode 6.0" [RFC6452] describes some + changes made to Unicode 6.0.0 [Unicode-6.0.0] that resulted in + derived property value changes for the code points U+0CF1, U+0CF2, + and U+19DA. U+0CF1 and U+0CF2 changed from DISALLOWED to PVALID, + while U+19DA changed from PVALID to DISALLOWED. The IETF + concluded that no update to RFC 5892 [RFC5892] was needed based on + the changes made in Unicode 6.0.0 [Unicode-6.0.0]. As a result, + the derived property value remained aligned with the Unicode + Standard. Specifically, no exception was added. + +2.3. Deployment + + There are many variations on the general IDNA model in use in the + various parts of the community. The following lists some of the + strategies that implementations that claim to be IDNA compliant are + known to use, but it should be noted the list is not complete: + + * IDNA2003 as specified in RFC 3490 [RFC3490] and RFC 3491 + [RFC3491]. Those specifications are dependent on case folding, + Normalization Form KC (NFKC), and on tables that specify for each + code point whether it is allowed to be used or not, with a + distinction made between use for "stored strings" and "query + strings". The tables themselves are dependent on Unicode 3.2 + [Unicode-3.2.0]. + + * A number of variations on IDNA2003, sometimes presented as + "updated IDNA2003" or the like, which follow the principles of + IDNA2003 as understood by the implementers but that use tables + that represent how the implementers believe Stringprep [RFC3454] + and Nameprep [RFC3491] would have evolved had the IETF not moved + in the direction of IDNA2008 instead. + + * A mix between IDNA2003 and IDNA2008 where code points assigned to + Unicode after Unicode 3.2.0 [Unicode-3.2.0] have derived property + value calculated according to the algorithm specified in IDNA2008. + + * A mix between IDNA2003 and IDNA2008 according to the Unicode + Technical Standard #46 [UTS-46]. Because that document specifies + different profiles, there are several variations that leave users + with no guarantee that two applications claiming conformance to + UTS#46 will interoperate well with each other much less with + conforming IDNA2008 implementations. UTS#46 is ultimately based + on a normative table very much like the one used by Stringprep + [RFC3454] but updated for each new version of Unicode. + + * The (normative) IDNA2008 algorithm applied to whatever version of + Unicode Standard exists in the operating system and/or libraries + used, independent of whatever version of tables appears in the + (non-normative) IANA database. + + In practice, the Unicode Consortium creates a maximum set of code + points by assigning code points in the Unicode Standard. The + IDNA2008 rules use the Unicode Standard to create a further subset of + code points and context that are permitted in DNS labels associated + with its PVALID and CONTEXT (CONTEXTJ or CONTEXTO) derived property + values. DNS registries and other organizations that deal with IDNs + are supposed to create their own subsets from IDNA2008 for use by + those registries and organizations. + + This progressive subsetting and narrowing of the repertoire of code + points that can be used in labels is an implementation of the + principles of being conservative when deciding what code points to + include in such a subset. SAC-084 [SAC-084] and RFC 6912 [RFC6912] + recommend to DNS registries and other organizations to be + conservative when creating their subsets and to use the principle of + creating subsets by inclusion. + + See also Security Considerations (Section 7) in this document. + +3. Notable Changes between Unicode 6.0.0 and 12.0.0 + + Among the changes between the Unicode versions, most code points that + change derived property value change from UNASSIGNED to PVALID or + from UNASSIGNED to DISALLOWED. The interesting changes in derived + property values include other changes. All changes between the major + versions of Unicode can be found in Appendix A (6.0.0-7.0.0), + Appendix B (7.0.0-8.0.0), Appendix C (8.0.0-9.0.0), Appendix D + (9.0.0-10.0.0), Appendix E (10.0.0-11.0.0), and Appendix F + (11.0.0-12.0.0). + +3.1. Changes between Unicode 6.0.0 and 7.0.0 + + Change in number of characters in each category: + + * PVALID changed from 97418 to 99867 (+2449) + + * UNASSIGNED changed from 865081 to 861509 (-3572) + + * CONTEXTJ did not change, at 2 + + * CONTEXTO did not change, at 25 + + * DISALLOWED changed from 151586 to 152709 (+1123) + + * TOTAL did not change, at 1114112 + + There are no changes made to Unicode between version 6.0.0 and 7.0.0 + that impact IDNA2008 calculation of the derived property values. + + The code points U+17B4 KHMER VOWEL INHERENT AQ and U+17B5 KHMER VOWEL + INHERENT AA both changed the General Category from Cf (Format) to Mn + (Nonspacing_Mark), but that did not impact the calculation of the + derived property value which stayed at DISALLOWED. + + The character ARABIC LETTER BEH WITH HAMZA ABOVE (U+08A1) was + introduced in Unicode 7.0.0. This was discussed extensively in the + IETF and also by the IAB in their statement [IAB2005-1] requesting + the IETF to investigate the issue. Specifically, the IAB stated: + + | On the same precautionary principle, the IAB recommends that the + | Internationalized Domain Names for Applications (IDNA) Parameters + | registry <https://www.iana.org/assignments/idna-tables/> not be + | updated to Unicode 7.0.0 until the IETF has consensus on a + | solution to this problem. + + The discussion in the IETF concluded that although it is possible to + create "the same" character in multiple ways, the issue with U+08A1 + is not unique. The character U+08A1 (ARABIC LETTER BEH WITH HAMZA + ABOVE) can be represented with the sequence ARABIC LETTER BEH + (U+0628) and ARABIC HAMZA ABOVE (U+0654). This is identical to LATIN + SMALL LETTER O WITH STROKE (U+00F8), which can be represented with + the sequence LATIN SMALL LETTER O (U+006F) followed by COMBINING + SHORT SOLIDUS OVERLAY (U+0337). + + Although the discussion about this specific code point resulted in + acceptance of the derived property value of PVALID, the underlying + problem with combining sequences is not understood fully. Therefore, + it cannot be claimed that this case can be extrapolated to other + situations and other code points. + +3.2. Changes between Unicode 7.0.0 and 10.0.0 + + Change in number of characters in each category: + + * Code points that changed derived property value: 0 + + * PVALID changed from 99867 to 122411 (+22544) + + * UNASSIGNED changed from 861509 to 837775 (-23734) + + * CONTEXTJ did not change, at 2 + + * CONTEXTO did not change, at 25 + + * DISALLOWED changed from 152709 to 153899 (+1190) + + * TOTAL did not change, at 1114112 + + There are no changes made to Unicode between version 7.0.0 and 10.0.0 + that impact IDNA2008 calculation of the derived property values. + +3.3. Changes between Unicode 10.0.0 and 11.0.0 + + Change in number of characters in each category: + + * Code points that changed derived property value: 1 + + * PVALID changed from 122411 to 122734 (+323) + + * UNASSIGNED changed from 837775 to 837091 (-684) + + * CONTEXTJ did not change, at 2 + + * CONTEXTO did not change, at 25 + + * DISALLOWED changed from 153899 to 154260 (+361) + + * TOTAL did not change, at 1114112 + + * Georgian letters in the ranges U+10D0..U+10FA and U+10FD..U+10FF + had their General Category changed from Lo (Other_Letter) to Ll + (Lowercase_Letter) to reflect their status as the lowercase of new + Georgian case pairs. Case mappings were also added. + + * SHARADA SANDHI MARK (U+111C9) General Category was changed from Po + (Other_Punctuation) to Mn (Nonspacing_Mark), and the Bidi property + was changed from L (Left to Right) to NSM (Nonspacing Mark). + + * The properties for ZANABAZAR SQUARE VOWEL SIGN AI (U+11A07) and + ZANABAZAR SQUARE VOWEL SIGN AU (U+11A08) were corrected from Mc to + Mn. + + * SPHERICAL ANGLE OPENING UP (U+29A1) was changed to Bidi Mirrored + to No. + + These changes to the Unicode Standard have the following implications + for these code points: + + * The newly assigned 684 characters are assigned a derived property + value as of a result of applying the IDNA2008 algorithm. + + * The Georgian letters in the ranges U+10D0..U+10FA and + U+10FD..U+10FF existed before IDNA2008 was created. Applying the + IDNA2008 algorithm to the code points assigned the derived + property value PVALID, and that value is unchanged even if the + underlying Unicode properties have changed. The newly encoded + Mtavruli letters have General Category Lu (Uppercase_Letter) and + are therefore DISALLOWED. + + * The U+111C9 SHARADA SANDHI MARK was added to Unicode 8.0.0 + [Unicode-8.0.0]. Applying the IDNA2008 algorithm to the code + point assigned the derived property value DISALLOWED. The changes + in the underlying properties in Unicode 11.0.0 [Unicode-11.0.0] + caused the derived property value to change to PVALID. + + * The characters ZANABAZAR SQUARE VOWEL SIGN AI (U+11A07) and + ZANABAZAR SQUARE VOWEL SIGN AU (U+11A08) were added to Unicode + 10.0.0 [Unicode-10.0.0]. Applying the IDNA2008 algorithm to the + code points assigned the derived property value PVALID, and that + value is unchanged even if the underlying Unicode properties have + changed. + + * SPHERICAL ANGLE OPENING UP (U+29A1) existed before IDNA2008 was + created. Applying the IDNA2008 algorithm to the code point + assigned the derived property value DISALLOWED, and that value is + unchanged even if the underlying Unicode properties have changed. + +3.4. Changes between Unicode 11.0.0 and 12.0.0 + + Change in number of characters in each category: + + * Code points that changed derived property value: 0 + + * PVALID changed from 122734 to 123006 (+272) + + * UNASSIGNED changed from 837091 to 836537 (-554) + + * CONTEXTJ did not change, at 2 + + * CONTEXTO did not change, at 25 + + * DISALLOWED changed from 154260 to 154542 (+282) + + * TOTAL did not change, at 1114112 + +4. U+111C9 SHARADA SANDHI MARK + + As one can see in Section 3, an incompatible property change was made + between Unicode 6.0.0 and 12.0.0, affecting the code point U+111C9. + Its derived property value thus changed from DISALLOWED to PVALID. + In situations like these, IDNA2008 allows for addition of rules to + RFC 5892 [RFC5892], Section 2.7. If the code point is accepted, it + might still be rejected if validated by software based on versions of + Unicode older than 12.0.0. As the character is rarely used outside + the group of Sharada specialists but is used in some records for + indicating sandhi breaks, the conclusion was that it could either be + added as an exception or allowed to change its property value. As + including an exception would require implementation changes to + deployments of IDNA20008, the IETF has decided not to add a + BackwardCompatible rule to IDNA2008 (i.e., Section 2.7 of RFC 5892 + [RFC5892]) for this code point. This also ensures all sandhi marks + are treated equally. + +5. Conclusion + + As described in Sections 3 and 4, changes have been made to Unicode + between version 6.0.0 and 12.0.0. Some changes to specific + characters changed their derived property value, whereas other + changes did not. Given the deployment considerations described in + Section 2.3 and changes in the Unicode Standard described in Sections + 3 and 4, including implications to normalization, the conclusion is + not to add any exception rules to IDNA2008. + + This document addresses only changes to Unicode between version 6.0.0 + and version 12.0.0. Changes in future Unicode versions might result + in the conclusion that exception rules need to be added to IDNA2008 + after the review process explained in RFC 8753 [RFC8753]. Separately + from any changes in Unicode, the IETF might conclude that updates to + RFC 5892 [RFC5892] or other IDNA2008 documents might become + necessary; such updates might include changes to the algorithm + specified in IDNA2008 as well as additional rules, categories, or + other forms of tuning, like the clarifications in RFC 8753 [RFC8753]. + +6. IANA Considerations + + IANA updated the "IDNA Rules and Derived Property Values" [IANA-IDNA] + registry after the expert reviewer validated that the derived + property values were calculated correctly. + +7. Security Considerations + + This document makes recommendations regarding the use of the IDNA2008 + algorithm for calculation of derived property values, based on + Unicode version 12.0.0. This recommendation does not say anything + about what recommendations to make for future versions of the Unicode + Standard. + + Not following these recommendations can lead to various security + issues. Specifically, allowing confusable characters may lead to + various phishing attacks, as described in the Security Consideration + Sections in the documents listed in Section 2.1. + +8. References + +8.1. Normative References + + [RFC3491] Hoffman, P. and M. Blanchet, "Nameprep: A Stringprep + Profile for Internationalized Domain Names (IDN)", + RFC 3491, DOI 10.17487/RFC3491, March 2003, + <https://www.rfc-editor.org/info/rfc3491>. + + [RFC5890] Klensin, J., "Internationalized Domain Names for + Applications (IDNA): Definitions and Document Framework", + RFC 5890, DOI 10.17487/RFC5890, August 2010, + <https://www.rfc-editor.org/info/rfc5890>. + + [RFC5891] Klensin, J., "Internationalized Domain Names in + Applications (IDNA): Protocol", RFC 5891, + DOI 10.17487/RFC5891, August 2010, + <https://www.rfc-editor.org/info/rfc5891>. + + [RFC5892] Faltstrom, P., Ed., "The Unicode Code Points and + Internationalized Domain Names for Applications (IDNA)", + RFC 5892, DOI 10.17487/RFC5892, August 2010, + <https://www.rfc-editor.org/info/rfc5892>. + + [RFC5893] Alvestrand, H., Ed. and C. Karp, "Right-to-Left Scripts + for Internationalized Domain Names for Applications + (IDNA)", RFC 5893, DOI 10.17487/RFC5893, August 2010, + <https://www.rfc-editor.org/info/rfc5893>. + + [RFC6452] Faltstrom, P., Ed. and P. Hoffman, Ed., "The Unicode Code + Points and Internationalized Domain Names for Applications + (IDNA) - Unicode 6.0", RFC 6452, DOI 10.17487/RFC6452, + November 2011, <https://www.rfc-editor.org/info/rfc6452>. + +8.2. Informative References + + [IAB2005-1] + Internet Architecture Board, "IAB Statement on Identifiers + and Unicode 7.0.0", 27 January 2015, + <https://www.iab.org/documents/correspondence-reports- + documents/2015-2/iab-statement-on-identifiers-and-unicode- + 7-0-0/archive/>. + + [IAB2005-2] + Internet Architecture Board, "IAB Statement on Identifiers + and Unicode 7.0.0", 11 February 2015, + <https://www.iab.org/documents/correspondence-reports- + documents/2015-2/iab-statement-on-identifiers-and-unicode- + 7-0-0/>. + + [IANA-IDNA] + IANA, "IDNA Rules and Derived Property Values", February + 2022, + <https://www.iana.org/assignments/idna-tables-12.0.0/>. + + [IDNA7] Klensin, J. C. and P. Faltstrom, "IDNA Update for Unicode + 7.0 and Later Versions", Work in Progress, Internet-Draft, + draft-klensin-idna-5892upd-unicode70-05, 8 October 2017, + <https://datatracker.ietf.org/doc/html/draft-klensin-idna- + 5892upd-unicode70-05>. + + [RFC3454] Hoffman, P. and M. Blanchet, "Preparation of + Internationalized Strings ("stringprep")", RFC 3454, + DOI 10.17487/RFC3454, December 2002, + <https://www.rfc-editor.org/info/rfc3454>. + + [RFC3490] Faltstrom, P., Hoffman, P., and A. Costello, + "Internationalizing Domain Names in Applications (IDNA)", + RFC 3490, DOI 10.17487/RFC3490, March 2003, + <https://www.rfc-editor.org/info/rfc3490>. + + [RFC5894] Klensin, J., "Internationalized Domain Names for + Applications (IDNA): Background, Explanation, and + Rationale", RFC 5894, DOI 10.17487/RFC5894, August 2010, + <https://www.rfc-editor.org/info/rfc5894>. + + [RFC5895] Resnick, P. and P. Hoffman, "Mapping Characters for + Internationalized Domain Names in Applications (IDNA) + 2008", RFC 5895, DOI 10.17487/RFC5895, September 2010, + <https://www.rfc-editor.org/info/rfc5895>. + + [RFC6912] Sullivan, A., Thaler, D., Klensin, J., and O. Kolkman, + "Principles for Unicode Code Point Inclusion in Labels in + the DNS", RFC 6912, DOI 10.17487/RFC6912, April 2013, + <https://www.rfc-editor.org/info/rfc6912>. + + [RFC8753] Klensin, J. and P. Fältström, "Internationalized Domain + Names for Applications (IDNA) Review for New Unicode + Versions", RFC 8753, DOI 10.17487/RFC8753, April 2020, + <https://www.rfc-editor.org/info/rfc8753>. + + [SAC-084] The Security and Stability Advisory Committee, "SAC084", + SSAC Comments on Guidelines for the Extended Process + Similarity Review Panel for the IDN ccTLD Fast Track + Process, August 2016, + <https://www.icann.org/en/system/files/files/sac- + 084-en.pdf>. + + [Unicode-3.2.0] + The Unicode Consortium, "The Unicode Standard, Version + 3.2.0", Mountain View: The Unicode Consortium, + ISBN 0-201-61633-5, March 2002, + <https://www.unicode.org/versions/Unicode3.2.0/>. + + [Unicode-5.2.0] + The Unicode Consortium, "The Unicode Standard, Version + 5.2.0", Mountain View: The Unicode Consortium, + ISBN 978-1-936213-00-9, October 2009, + <https://www.unicode.org/versions/Unicode5.2.0/>. + + [Unicode-6.0.0] + The Unicode Consortium, "The Unicode Standard, Version + 6.0.0", Mountain View: The Unicode Consortium, + ISBN 978-1-936213-01-6, October 2011, + <https://www.unicode.org/versions/Unicode6.0.0/>. + + [Unicode-7.0.0] + The Unicode Consortium, "The Unicode Standard, Version + 7.0.0", Mountain View: The Unicode Consortium, + ISBN 978-1-936213-09-2, June 2014, + <https://www.unicode.org/versions/Unicode7.0.0/>. + + [Unicode-8.0.0] + The Unicode Consortium, "The Unicode Standard, Version + 8.0.0", Mountain View: The Unicode Consortium, + ISBN 978-1-936213-10-8, June 2015, + <https://www.unicode.org/versions/Unicode8.0.0/>. + + [Unicode-10.0.0] + The Unicode Consortium, "The Unicode Standard, Version + 10.0.0", Mountain View: The Unicode Consortium, + ISBN 978-1-936213-16-0, June 2017, + <https://www.unicode.org/versions/Unicode10.0.0/>. + + [Unicode-11.0.0] + The Unicode Consortium, "The Unicode Standard, Version + 11.0.0", Mountain View: The Unicode Consortium, + ISBN 978-1-936213-19-1, June 2018, + <https://www.unicode.org/versions/Unicode11.0.0/>. + + [Unicode-12.0.0] + The Unicode Consortium, "The Unicode Standard, Version + 12.0.0", Mountain View: The Unicode Consortium, + ISBN 978-1-936213-22-1, March 2019, + <https://www.unicode.org/versions/Unicode12.0.0/>. + + [UTS-46] The Unicode Consortium, "Unicode Technical Standard #46, + Version 12.0.0", UNICODE IDNA COMPATIBILITY PROCESSING, + March 2019, + <https://www.unicode.org/reports/tr46/tr46-23.html>. + +Appendix A. Changes from Unicode 6.0.0 to Unicode 7.0.0 + + Changes from derived property value UNASSIGNED to either PVALID or + DISALLOWED. + +037F ; DISALLOWED # GREEK CAPITAL LETTER YOT +0528 ; DISALLOWED # CYRILLIC CAPITAL LETTER EN WITH LEFT HOOK +0529 ; PVALID # CYRILLIC SMALL LETTER EN WITH LEFT HOOK +052A ; DISALLOWED # CYRILLIC CAPITAL LETTER DZZHE +052B ; PVALID # CYRILLIC SMALL LETTER DZZHE +052C ; DISALLOWED # CYRILLIC CAPITAL LETTER DCHE +052D ; PVALID # CYRILLIC SMALL LETTER DCHE +052E ; DISALLOWED # CYRILLIC CAPITAL LETTER EL WITH DESCENDER +052F ; PVALID # CYRILLIC SMALL LETTER EL WITH DESCENDER +058D..058F ; DISALLOWED # RIGHT-FACING ARMENIAN ETERNITY SIGN..ARMENIAN +0604..0605 ; DISALLOWED # ARABIC SIGN SAMVAT..ARABIC NUMBER MARK ABOVE +061C ; DISALLOWED # ARABIC LETTER MARK +08A0..08B2 ; PVALID # ARABIC LETTER BEH WITH SMALL V BELOW..ARABIC +08E4..08FF ; PVALID # ARABIC CURLY FATHA..ARABIC MARK SIDEWAYS NOON +0978 ; PVALID # DEVANAGARI LETTER MARWARI DDA +0980 ; PVALID # BENGALI ANJI +0AF0 ; DISALLOWED # GUJARATI ABBREVIATION SIGN +0C00 ; PVALID # TELUGU SIGN COMBINING CANDRABINDU ABOVE +0C34 ; PVALID # TELUGU LETTER LLLA +0C81 ; PVALID # KANNADA SIGN CANDRABINDU +0D01 ; PVALID # MALAYALAM SIGN CANDRABINDU +0DE6..0DEF ; PVALID # SINHALA LITH DIGIT ZERO..SINHALA LITH DIGIT N +0EDE..0EDF ; PVALID # LAO LETTER KHMU GO..LAO LETTER KHMU NYO +10C7 ; DISALLOWED # GEORGIAN CAPITAL LETTER YN +10CD ; DISALLOWED # GEORGIAN CAPITAL LETTER AEN +10FD..10FF ; PVALID # GEORGIAN LETTER AEN..GEORGIAN LETTER LABIAL S +16F1..16F8 ; PVALID # RUNIC LETTER K..RUNIC LETTER FRANKS CASKET AE +17B4..17B5 ; DISALLOWED # KHMER VOWEL INHERENT AQ..KHMER VOWEL INHERENT +191D..191E ; PVALID # LIMBU LETTER GYAN..LIMBU LETTER TRA +1AB0..1ABD ; PVALID # COMBINING DOUBLED CIRCUMFLEX ACCENT..COMBININ +1ABE ; DISALLOWED # COMBINING PARENTHESES OVERLAY +1BAB..1BAD ; PVALID # SUNDANESE SIGN VIRAMA..SUNDANESE CONSONANT SI +1BBA..1BBF ; PVALID # SUNDANESE AVAGRAHA..SUNDANESE LETTER FINAL M +1CC0..1CC7 ; DISALLOWED # SUNDANESE PUNCTUATION BINDU SURYA..SUNDANESE +1CF3..1CF6 ; PVALID # VEDIC SIGN ROTATED ARDHAVISARGA..VEDIC SIGN U +1CF8..1CF9 ; PVALID # VEDIC TONE RING ABOVE..VEDIC TONE DOUBLE RING +1DE7..1DF5 ; PVALID # COMBINING LATIN SMALL LETTER ALPHA..COMBINING +2066..2069 ; DISALLOWED # LEFT-TO-RIGHT ISOLATE..POP DIRECTIONAL ISOLAT +20BA..20BD ; DISALLOWED # TURKISH LIRA SIGN..RUBLE SIGN +23F4..23FA ; DISALLOWED # BLACK MEDIUM LEFT-POINTING TRIANGLE..BLACK CI +2700 ; DISALLOWED # BLACK SAFETY SCISSORS +27CB ; DISALLOWED # MATHEMATICAL RISING DIAGONAL +27CD ; DISALLOWED # MATHEMATICAL FALLING DIAGONAL +2B4D..2B4F ; DISALLOWED # DOWNWARDS TRIANGLE-HEADED ZIGZAG ARROW..SHORT +2B5A..2B73 ; DISALLOWED # SLANTED NORTH ARROW WITH HOOKED HEAD..DOWNWAR +2B76..2B95 ; DISALLOWED # NORTH WEST TRIANGLE-HEADED ARROW TO BAR..RIGH +2B98..2BB9 ; DISALLOWED # THREE-D TOP-LIGHTED LEFTWARDS EQUILATERAL ARR +2BBD..2BC8 ; DISALLOWED # BALLOT BOX WITH LIGHT X..BLACK MEDIUM RIGHT-P +2BCA..2BD1 ; DISALLOWED # TOP HALF BLACK CIRCLE..UNCERTAINTY SIGN +2CF2 ; DISALLOWED # COPTIC CAPITAL LETTER BOHAIRIC KHEI +2CF3 ; PVALID # COPTIC SMALL LETTER BOHAIRIC KHEI +2D27 ; PVALID # GEORGIAN SMALL LETTER YN +2D2D ; PVALID # GEORGIAN SMALL LETTER AEN +2D66..2D67 ; PVALID # TIFINAGH LETTER YE..TIFINAGH LETTER YO +2E32..2E42 ; DISALLOWED # TURNED COMMA..DOUBLE LOW-REVERSED-9 QUOTATION +9FCC ; PVALID # <CJK Ideograph> +A674..A67B ; PVALID # COMBINING CYRILLIC LETTER UKRAINIAN IE..COMBI +A698 ; DISALLOWED # CYRILLIC CAPITAL LETTER DOUBLE O +A699 ; PVALID # CYRILLIC SMALL LETTER DOUBLE O +A69A ; DISALLOWED # CYRILLIC CAPITAL LETTER CROSSED O +A69B ; PVALID # CYRILLIC SMALL LETTER CROSSED O +A69C..A69D ; DISALLOWED # MODIFIER LETTER CYRILLIC HARD SIGN..MODIFIER +A69F ; PVALID # COMBINING CYRILLIC LETTER IOTIFIED E +A792 ; DISALLOWED # LATIN CAPITAL LETTER C WITH BAR +A793..A795 ; PVALID # LATIN SMALL LETTER C WITH BAR..LATIN SMALL LE +A796 ; DISALLOWED # LATIN CAPITAL LETTER B WITH FLOURISH +A797 ; PVALID # LATIN SMALL LETTER B WITH FLOURISH +A798 ; DISALLOWED # LATIN CAPITAL LETTER F WITH STROKE +A799 ; PVALID # LATIN SMALL LETTER F WITH STROKE +A79A ; DISALLOWED # LATIN CAPITAL LETTER VOLAPUK AE +A79B ; PVALID # LATIN SMALL LETTER VOLAPUK AE +A79C ; DISALLOWED # LATIN CAPITAL LETTER VOLAPUK OE +A79D ; PVALID # LATIN SMALL LETTER VOLAPUK OE +A79E ; DISALLOWED # LATIN CAPITAL LETTER VOLAPUK UE +A79F ; PVALID # LATIN SMALL LETTER VOLAPUK UE +A7AA..A7AD ; DISALLOWED # LATIN CAPITAL LETTER H WITH HOOK..LATIN CAPIT +A7B0..A7B1 ; DISALLOWED # LATIN CAPITAL LETTER TURNED K..LATIN CAPITAL +A7F7 ; PVALID # LATIN EPIGRAPHIC LETTER SIDEWAYS I +A7F8..A7F9 ; DISALLOWED # MODIFIER LETTER CAPITAL H WITH STROKE..MODIFI +A9E0..A9FE ; PVALID # MYANMAR LETTER SHAN GHA..MYANMAR LETTER TAI L +AA7C..AA7F ; PVALID # MYANMAR SIGN TAI LAING TONE-2..MYANMAR LETTER +AAE0..AAEF ; PVALID # MEETEI MAYEK LETTER E..MEETEI MAYEK VOWEL SIG +AAF0..AAF1 ; DISALLOWED # MEETEI MAYEK CHEIKHAN..MEETEI MAYEK AHANG KHU +AAF2..AAF6 ; PVALID # MEETEI MAYEK ANJI..MEETEI MAYEK VIRAMA +AB30..AB5A ; PVALID # LATIN SMALL LETTER BARRED ALPHA..LATIN SMALL +AB5B..AB5F ; DISALLOWED # MODIFIER BREVE WITH INVERTED BREVE..MODIFIER +AB64..AB65 ; PVALID # LATIN SMALL LETTER INVERTED ALPHA..GREEK LETT +FA2E..FA2F ; DISALLOWED # CJK COMPATIBILITY IDEOGRAPH-FA2E..CJK COMPATI +FE27..FE2D ; PVALID # COMBINING LIGATURE LEFT HALF BELOW..COMBINING +1018B..1018C; DISALLOWED # GREEK ONE QUARTER SIGN..GREEK SINUSOID SIGN +101A0 ; DISALLOWED # GREEK SYMBOL TAU RHO +102E0 ; PVALID # COPTIC EPACT THOUSANDS MARK +102E1..102FB; DISALLOWED # COPTIC EPACT DIGIT ONE..COPTIC EPACT NUMBER N +1031F ; PVALID # OLD ITALIC LETTER ESS +10350..1037A; PVALID # OLD PERMIC LETTER AN..COMBINING OLD PERMIC LE +10500..10527; PVALID # ELBASAN LETTER A..ELBASAN LETTER KHE +10530..10563; PVALID # CAUCASIAN ALBANIAN LETTER ALT..CAUCASIAN ALBA +1056F ; DISALLOWED # CAUCASIAN ALBANIAN CITATION MARK +10600..10736; PVALID # LINEAR A SIGN AB001..LINEAR A SIGN A664 +10740..10755; PVALID # LINEAR A SIGN A701 A..LINEAR A SIGN A732 JE +10760..10767; PVALID # LINEAR A SIGN A800..LINEAR A SIGN A807 +10860..10876; PVALID # PALMYRENE LETTER ALEPH..PALMYRENE LETTER TAW +10877..1087F; DISALLOWED # PALMYRENE LEFT-POINTING FLEURON..PALMYRENE NU +10880..1089E; PVALID # NABATAEAN LETTER FINAL ALEPH..NABATAEAN LETTE +108A7..108AF; DISALLOWED # NABATAEAN NUMBER ONE..NABATAEAN NUMBER ONE HU +10980..109B7; PVALID # MEROITIC HIEROGLYPHIC LETTER A..MEROITIC CURS +109BE..109BF; PVALID # MEROITIC CURSIVE LOGOGRAM RMT..MEROITIC CURSI +10A80..10A9C; PVALID # OLD NORTH ARABIAN LETTER HEH..OLD NORTH ARABI +10A9D..10A9F; DISALLOWED # OLD NORTH ARABIAN NUMBER ONE..OLD NORTH ARABI +10AC0..10AC7; PVALID # MANICHAEAN LETTER ALEPH..MANICHAEAN LETTER WA +10AC8 ; DISALLOWED # MANICHAEAN SIGN UD +10AC9..10AE6; PVALID # MANICHAEAN LETTER ZAYIN..MANICHAEAN ABBREVIAT +10AEB..10AF6; DISALLOWED # MANICHAEAN NUMBER ONE..MANICHAEAN PUNCTUATION +10B80..10B91; PVALID # PSALTER PAHLAVI LETTER ALEPH..PSALTER PAHLAVI +10B99..10B9C; DISALLOWED # PSALTER PAHLAVI SECTION MARK..PSALTER PAHLAVI +10BA9..10BAF; DISALLOWED # PSALTER PAHLAVI NUMBER ONE..PSALTER PAHLAVI N +1107F ; PVALID # BRAHMI NUMBER JOINER +110D0..110E8; PVALID # SORA SOMPENG LETTER SAH..SORA SOMPENG LETTER +110F0..110F9; PVALID # SORA SOMPENG DIGIT ZERO..SORA SOMPENG DIGIT N +11100..11134; PVALID # CHAKMA SIGN CANDRABINDU..CHAKMA MAAYYAA +11136..1113F; PVALID # CHAKMA DIGIT ZERO..CHAKMA DIGIT NINE +11140..11143; DISALLOWED # CHAKMA SECTION MARK..CHAKMA QUESTION MARK +11150..11173; PVALID # MAHAJANI LETTER A..MAHAJANI SIGN NUKTA +11174..11175; DISALLOWED # MAHAJANI ABBREVIATION SIGN..MAHAJANI SECTION +11176 ; PVALID # MAHAJANI LIGATURE SHRI +11180..111C4; PVALID # SHARADA SIGN CANDRABINDU..SHARADA OM +111C5..111C8; DISALLOWED # SHARADA DANDA..SHARADA SEPARATOR +111CD ; DISALLOWED # SHARADA SUTRA MARK +111D0..111DA; PVALID # SHARADA DIGIT ZERO..SHARADA EKAM +111E1..111F4; DISALLOWED # SINHALA ARCHAIC DIGIT ONE..SINHALA ARCHAIC NU +11200..11211; PVALID # KHOJKI LETTER A..KHOJKI LETTER JJA +11213..11237; PVALID # KHOJKI LETTER NYA..KHOJKI SIGN SHADDA +11238..1123D; DISALLOWED # KHOJKI DANDA..KHOJKI ABBREVIATION SIGN +112B0..112EA; PVALID # KHUDAWADI LETTER A..KHUDAWADI SIGN VIRAMA +112F0..112F9; PVALID # KHUDAWADI DIGIT ZERO..KHUDAWADI DIGIT NINE +11301..11303; PVALID # GRANTHA SIGN CANDRABINDU..GRANTHA SIGN VISARG +11305..1130C; PVALID # GRANTHA LETTER A..GRANTHA LETTER VOCALIC L +1130F..11310; PVALID # GRANTHA LETTER EE..GRANTHA LETTER AI +11313..11328; PVALID # GRANTHA LETTER OO..GRANTHA LETTER NA +1132A..11330; PVALID # GRANTHA LETTER PA..GRANTHA LETTER RA +11332..11333; PVALID # GRANTHA LETTER LA..GRANTHA LETTER LLA +11335..11339; PVALID # GRANTHA LETTER VA..GRANTHA LETTER HA +1133C..11344; PVALID # GRANTHA SIGN NUKTA..GRANTHA VOWEL SIGN VOCALI +11347..11348; PVALID # GRANTHA VOWEL SIGN EE..GRANTHA VOWEL SIGN AI +1134B..1134D; PVALID # GRANTHA VOWEL SIGN OO..GRANTHA SIGN VIRAMA +11357 ; PVALID # GRANTHA AU LENGTH MARK +1135D..11363; PVALID # GRANTHA SIGN PLUTA..GRANTHA VOWEL SIGN VOCALI +11366..1136C; PVALID # COMBINING GRANTHA DIGIT ZERO..COMBINING GRANT +11370..11374; PVALID # COMBINING GRANTHA LETTER A..COMBINING GRANTHA +11480..114C5; PVALID # TIRHUTA ANJI..TIRHUTA GVANG +114C6 ; DISALLOWED # TIRHUTA ABBREVIATION SIGN +114C7 ; PVALID # TIRHUTA OM +114D0..114D9; PVALID # TIRHUTA DIGIT ZERO..TIRHUTA DIGIT NINE +11580..115B5; PVALID # SIDDHAM LETTER A..SIDDHAM VOWEL SIGN VOCALIC +115B8..115C0; PVALID # SIDDHAM VOWEL SIGN E..SIDDHAM SIGN NUKTA +115C1..115C9; DISALLOWED # SIDDHAM SIGN SIDDHAM..SIDDHAM END OF TEXT MAR +11600..11640; PVALID # MODI LETTER A..MODI SIGN ARDHACANDRA +11641..11643; DISALLOWED # MODI DANDA..MODI ABBREVIATION SIGN +11644 ; PVALID # MODI SIGN HUVA +11650..11659; PVALID # MODI DIGIT ZERO..MODI DIGIT NINE +11680..116B7; PVALID # TAKRI LETTER A..TAKRI SIGN NUKTA +116C0..116C9; PVALID # TAKRI DIGIT ZERO..TAKRI DIGIT NINE +118A0..118BF; DISALLOWED # WARANG CITI CAPITAL LETTER NGAA..WARANG CITI +118C0..118E9; PVALID # WARANG CITI SMALL LETTER NGAA..WARANG CITI DI +118EA..118F2; DISALLOWED # WARANG CITI NUMBER TEN..WARANG CITI NUMBER NI +118FF ; PVALID # WARANG CITI OM +11AC0..11AF8; PVALID # PAU CIN HAU LETTER PA..PAU CIN HAU GLOTTAL ST +1236F..12398; PVALID # CUNEIFORM SIGN KAP ELAMITE..CUNEIFORM SIGN UM +12463..1246E; DISALLOWED # CUNEIFORM NUMERIC SIGN ONE QUARTER GUR..CUNEI +12474 ; DISALLOWED # CUNEIFORM PUNCTUATION SIGN DIAGONAL QUADCOLON +16A40..16A5E; PVALID # MRO LETTER TA..MRO LETTER TEK +16A60..16A69; PVALID # MRO DIGIT ZERO..MRO DIGIT NINE +16A6E..16A6F; DISALLOWED # MRO DANDA..MRO DOUBLE DANDA +16AD0..16AED; PVALID # BASSA VAH LETTER ENNI..BASSA VAH LETTER I +16AF0..16AF4; PVALID # BASSA VAH COMBINING HIGH TONE..BASSA VAH COMB +16AF5 ; DISALLOWED # BASSA VAH FULL STOP +16B00..16B36; PVALID # PAHAWH HMONG VOWEL KEEB..PAHAWH HMONG MARK CI +16B37..16B3F; DISALLOWED # PAHAWH HMONG SIGN VOS THOM..PAHAWH HMONG SIGN +16B40..16B43; PVALID # PAHAWH HMONG SIGN VOS SEEV..PAHAWH HMONG SIGN +16B44..16B45; DISALLOWED # PAHAWH HMONG SIGN XAUS..PAHAWH HMONG SIGN CIM +16B50..16B59; PVALID # PAHAWH HMONG DIGIT ZERO..PAHAWH HMONG DIGIT N +16B5B..16B61; DISALLOWED # PAHAWH HMONG NUMBER TENS..PAHAWH HMONG NUMBER +16B63..16B77; PVALID # PAHAWH HMONG SIGN VOS LUB..PAHAWH HMONG SIGN +16B7D..16B8F; PVALID # PAHAWH HMONG CLAN SIGN TSHEEJ..PAHAWH HMONG C +16F00..16F44; PVALID # MIAO LETTER PA..MIAO LETTER HHA +16F50..16F7E; PVALID # MIAO LETTER NASALIZATION..MIAO VOWEL SIGN NG +16F8F..16F9F; PVALID # MIAO TONE RIGHT..MIAO LETTER REFORMED TONE-8 +1BC00..1BC6A; PVALID # DUPLOYAN LETTER H..DUPLOYAN LETTER VOCALIC M +1BC70..1BC7C; PVALID # DUPLOYAN AFFIX LEFT HORIZONTAL SECANT..DUPLOY +1BC80..1BC88; PVALID # DUPLOYAN AFFIX HIGH ACUTE..DUPLOYAN AFFIX HIG +1BC90..1BC99; PVALID # DUPLOYAN AFFIX LOW ACUTE..DUPLOYAN AFFIX LOW +1BC9C ; DISALLOWED # DUPLOYAN SIGN O WITH CROSS +1BC9D..1BC9E; PVALID # DUPLOYAN THICK LETTER SELECTOR..DUPLOYAN DOUB +1BC9F..1BCA3; DISALLOWED # DUPLOYAN PUNCTUATION CHINOOK FULL STOP..SHORT +1E800..1E8C4; PVALID # MENDE KIKAKUI SYLLABLE M001 KI..MENDE KIKAKUI +1E8C7..1E8CF; DISALLOWED # MENDE KIKAKUI DIGIT ONE..MENDE KIKAKUI DIGIT +1E8D0..1E8D6; PVALID # MENDE KIKAKUI COMBINING NUMBER TEENS..MENDE K +1EE00..1EE03; DISALLOWED # ARABIC MATHEMATICAL ALEF..ARABIC MATHEMATICAL +1EE05..1EE1F; DISALLOWED # ARABIC MATHEMATICAL WAW..ARABIC MATHEMATICAL +1EE21..1EE22; DISALLOWED # ARABIC MATHEMATICAL INITIAL BEH..ARABIC MATHE +1EE24 ; DISALLOWED # ARABIC MATHEMATICAL INITIAL HEH +1EE27 ; DISALLOWED # ARABIC MATHEMATICAL INITIAL HAH +1EE29..1EE32; DISALLOWED # ARABIC MATHEMATICAL INITIAL YEH..ARABIC MATHE +1EE34..1EE37; DISALLOWED # ARABIC MATHEMATICAL INITIAL SHEEN..ARABIC MAT +1EE39 ; DISALLOWED # ARABIC MATHEMATICAL INITIAL DAD +1EE3B ; DISALLOWED # ARABIC MATHEMATICAL INITIAL GHAIN +1EE42 ; DISALLOWED # ARABIC MATHEMATICAL TAILED JEEM +1EE47 ; DISALLOWED # ARABIC MATHEMATICAL TAILED HAH +1EE49 ; DISALLOWED # ARABIC MATHEMATICAL TAILED YEH +1EE4B ; DISALLOWED # ARABIC MATHEMATICAL TAILED LAM +1EE4D..1EE4F; DISALLOWED # ARABIC MATHEMATICAL TAILED NOON..ARABIC MATHE +1EE51..1EE52; DISALLOWED # ARABIC MATHEMATICAL TAILED SAD..ARABIC MATHEM +1EE54 ; DISALLOWED # ARABIC MATHEMATICAL TAILED SHEEN +1EE57 ; DISALLOWED # ARABIC MATHEMATICAL TAILED KHAH +1EE59 ; DISALLOWED # ARABIC MATHEMATICAL TAILED DAD +1EE5B ; DISALLOWED # ARABIC MATHEMATICAL TAILED GHAIN +1EE5D ; DISALLOWED # ARABIC MATHEMATICAL TAILED DOTLESS NOON +1EE5F ; DISALLOWED # ARABIC MATHEMATICAL TAILED DOTLESS QAF +1EE61..1EE62; DISALLOWED # ARABIC MATHEMATICAL STRETCHED BEH..ARABIC MAT +1EE64 ; DISALLOWED # ARABIC MATHEMATICAL STRETCHED HEH +1EE67..1EE6A; DISALLOWED # ARABIC MATHEMATICAL STRETCHED HAH..ARABIC MAT +1EE6C..1EE72; DISALLOWED # ARABIC MATHEMATICAL STRETCHED MEEM..ARABIC MA +1EE74..1EE77; DISALLOWED # ARABIC MATHEMATICAL STRETCHED SHEEN..ARABIC M +1EE79..1EE7C; DISALLOWED # ARABIC MATHEMATICAL STRETCHED DAD..ARABIC MAT +1EE7E ; DISALLOWED # ARABIC MATHEMATICAL STRETCHED DOTLESS FEH +1EE80..1EE89; DISALLOWED # ARABIC MATHEMATICAL LOOPED ALEF..ARABIC MATHE +1EE8B..1EE9B; DISALLOWED # ARABIC MATHEMATICAL LOOPED LAM..ARABIC MATHEM +1EEA1..1EEA3; DISALLOWED # ARABIC MATHEMATICAL DOUBLE-STRUCK BEH..ARABIC +1EEA5..1EEA9; DISALLOWED # ARABIC MATHEMATICAL DOUBLE-STRUCK WAW..ARABIC +1EEAB..1EEBB; DISALLOWED # ARABIC MATHEMATICAL DOUBLE-STRUCK LAM..ARABIC +1EEF0..1EEF1; DISALLOWED # ARABIC MATHEMATICAL OPERATOR MEEM WITH HAH WI +1F0BF ; DISALLOWED # PLAYING CARD RED JOKER +1F0E0..1F0F5; DISALLOWED # PLAYING CARD FOOL..PLAYING CARD TRUMP-21 +1F10B..1F10C; DISALLOWED # DINGBAT CIRCLED SANS-SERIF DIGIT ZERO..DINGBA +1F16A..1F16B; DISALLOWED # RAISED MC SIGN..RAISED MD SIGN +1F321..1F32C; DISALLOWED # THERMOMETER..WIND BLOWING FACE +1F336 ; DISALLOWED # HOT PEPPER +1F37D ; DISALLOWED # FORK AND KNIFE WITH PLATE +1F394..1F39F; DISALLOWED # HEART WITH TIP ON THE LEFT..ADMISSION TICKETS +1F3C5 ; DISALLOWED # SPORTS MEDAL +1F3CB..1F3CE; DISALLOWED # WEIGHT LIFTER..RACING CAR +1F3D4..1F3DF; DISALLOWED # SNOW CAPPED MOUNTAIN..STADIUM +1F3F1..1F3F7; DISALLOWED # WHITE PENNANT..LABEL +1F43F ; DISALLOWED # CHIPMUNK +1F441 ; DISALLOWED # EYE +1F4F8 ; DISALLOWED # CAMERA WITH FLASH +1F4FD..1F4FE; DISALLOWED # FILM PROJECTOR..PORTABLE STEREO +1F53E..1F54A; DISALLOWED # LOWER RIGHT SHADOWED WHITE CIRCLE..DOVE OF PE +1F568..1F579; DISALLOWED # RIGHT SPEAKER..JOYSTICK +1F57B..1F5A3; DISALLOWED # LEFT HAND TELEPHONE RECEIVER..BLACK DOWN POIN +1F5A5..1F5FA; DISALLOWED # DESKTOP COMPUTER..WORLD MAP +1F600 ; DISALLOWED # GRINNING FACE +1F611 ; DISALLOWED # EXPRESSIONLESS FACE +1F615 ; DISALLOWED # CONFUSED FACE +1F617 ; DISALLOWED # KISSING FACE +1F619 ; DISALLOWED # KISSING FACE WITH SMILING EYES +1F61B ; DISALLOWED # FACE WITH STUCK-OUT TONGUE +1F61F ; DISALLOWED # WORRIED FACE +1F626..1F627; DISALLOWED # FROWNING FACE WITH OPEN MOUTH..ANGUISHED FACE +1F62C ; DISALLOWED # GRIMACING FACE +1F62E..1F62F; DISALLOWED # FACE WITH OPEN MOUTH..HUSHED FACE +1F634 ; DISALLOWED # SLEEPING FACE +1F641..1F642; DISALLOWED # SLIGHTLY FROWNING FACE..SLIGHTLY SMILING FACE +1F650..1F67F; DISALLOWED # NORTH WEST POINTING LEAF..REVERSE CHECKER BOA +1F6C6..1F6CF; DISALLOWED # TRIANGLE WITH ROUNDED CORNERS..BED +1F6E0..1F6EC; DISALLOWED # HAMMER AND WRENCH..AIRPLANE ARRIVING +1F6F0..1F6F3; DISALLOWED # SATELLITE..PASSENGER SHIP +1F780..1F7D4; DISALLOWED # BLACK LEFT-POINTING ISOSCELES RIGHT TRIANGLE. +1F800..1F80B; DISALLOWED # LEFTWARDS ARROW WITH SMALL TRIANGLE ARROWHEAD +1F810..1F847; DISALLOWED # LEFTWARDS ARROW WITH SMALL EQUILATERAL ARROWH +1F850..1F859; DISALLOWED # LEFTWARDS SANS-SERIF ARROW..UP DOWN SANS-SERI +1F860..1F887; DISALLOWED # WIDE-HEADED LEFTWARDS LIGHT BARB ARROW..WIDE- +1F890..1F8AD; DISALLOWED # LEFTWARDS TRIANGLE ARROWHEAD..WHITE ARROW SHA + +Appendix B. Changes from Unicode 7.0.0 to Unicode 8.0.0 + + Changes from derived property value UNASSIGNED to either PVALID or + DISALLOWED. + +08B3..08B4 ; PVALID # ARABIC LETTER AIN WITH THREE DOTS BELOW..ARAB +08E3 ; PVALID # ARABIC TURNED DAMMA BELOW +0AF9 ; PVALID # GUJARATI LETTER ZHA +0C5A ; PVALID # TELUGU LETTER RRRA +0D5F ; PVALID # MALAYALAM LETTER ARCHAIC II +13F5 ; PVALID # CHEROKEE LETTER MV +13F8..13FD ; DISALLOWED # CHEROKEE SMALL LETTER YE..CHEROKEE SMALL LETT +20BE ; DISALLOWED # LARI SIGN +218A..218B ; DISALLOWED # TURNED DIGIT TWO..TURNED DIGIT THREE +2BEC..2BEF ; DISALLOWED # LEFTWARDS TWO-HEADED ARROW WITH TRIANGLE ARRO +9FCD..9FD5 ; PVALID # <CJK Ideograph>..<CJK Ideograph> +A69E ; PVALID # COMBINING CYRILLIC LETTER EF +A78F ; PVALID # LATIN LETTER SINOLOGICAL DOT +A7B2..A7B4 ; DISALLOWED # LATIN CAPITAL LETTER J WITH CROSSED-TAIL..LAT +A7B5 ; PVALID # LATIN SMALL LETTER BETA +A7B6 ; DISALLOWED # LATIN CAPITAL LETTER OMEGA +A7B7 ; PVALID # LATIN SMALL LETTER OMEGA +A8FC ; DISALLOWED # DEVANAGARI SIGN SIDDHAM +A8FD ; PVALID # DEVANAGARI JAIN OM +AB60..AB63 ; PVALID # LATIN SMALL LETTER SAKHA YAT..LATIN SMALL LET +AB70..ABBF ; DISALLOWED # CHEROKEE SMALL LETTER A..CHEROKEE SMALL LETTE +FE2E..FE2F ; PVALID # COMBINING CYRILLIC TITLO LEFT HALF..COMBINING +108E0..108F2; PVALID # HATRAN LETTER ALEPH..HATRAN LETTER QOPH +108F4..108F5; PVALID # HATRAN LETTER SHIN..HATRAN LETTER TAW +108FB..108FF; DISALLOWED # HATRAN NUMBER ONE..HATRAN NUMBER ONE HUNDRED +109BC..109BD; DISALLOWED # MEROITIC CURSIVE FRACTION ELEVEN TWELFTHS..ME +109C0..109CF; DISALLOWED # MEROITIC CURSIVE NUMBER ONE..MEROITIC CURSIVE +109D2..109FF; DISALLOWED # MEROITIC CURSIVE NUMBER ONE HUNDRED..MEROITIC +10C80..10CB2; DISALLOWED # OLD HUNGARIAN CAPITAL LETTER A..OLD HUNGARIAN +10CC0..10CF2; PVALID # OLD HUNGARIAN SMALL LETTER A..OLD HUNGARIAN S +10CFA..10CFF; DISALLOWED # OLD HUNGARIAN NUMBER ONE..OLD HUNGARIAN NUMBE +111C9 ; DISALLOWED # SHARADA SANDHI MARK +111CA..111CC; PVALID # SHARADA SIGN NUKTA..SHARADA EXTRA SHORT VOWEL +111DB ; DISALLOWED # SHARADA SIGN SIDDHAM +111DC ; PVALID # SHARADA HEADSTROKE +111DD..111DF; DISALLOWED # SHARADA CONTINUATION SIGN..SHARADA SECTION MA +11280..11286; PVALID # MULTANI LETTER A..MULTANI LETTER GA +11288 ; PVALID # MULTANI LETTER GHA +1128A..1128D; PVALID # MULTANI LETTER CA..MULTANI LETTER JJA +1128F..1129D; PVALID # MULTANI LETTER NYA..MULTANI LETTER BA +1129F..112A8; PVALID # MULTANI LETTER BHA..MULTANI LETTER RHA +112A9 ; DISALLOWED # MULTANI SECTION MARK +11300 ; PVALID # GRANTHA SIGN COMBINING ANUSVARA ABOVE +11350 ; PVALID # GRANTHA OM +115CA..115D7; DISALLOWED # SIDDHAM SECTION MARK WITH TRIDENT AND U-SHAPE +115D8..115DD; PVALID # SIDDHAM LETTER THREE-CIRCLE ALTERNATE I..SIDD +11700..11719; PVALID # AHOM LETTER KA..AHOM LETTER JHA +1171D..1172B; PVALID # AHOM CONSONANT SIGN MEDIAL LA..AHOM SIGN KILL +11730..11739; PVALID # AHOM DIGIT ZERO..AHOM DIGIT NINE +1173A..1173F; DISALLOWED # AHOM NUMBER TEN..AHOM SYMBOL VI +12399 ; PVALID # CUNEIFORM SIGN U U +12480..12543; PVALID # CUNEIFORM SIGN AB TIMES NUN TENU..CUNEIFORM S +14400..14646; PVALID # ANATOLIAN HIEROGLYPH A001..ANATOLIAN HIEROGLY +1D1DE..1D1E8; DISALLOWED # MUSICAL SYMBOL KIEVAN C CLEF..MUSICAL SYMBOL +1D800..1D9FF; DISALLOWED # SIGNWRITING HAND-FIST INDEX..SIGNWRITING HEAD +1DA00..1DA36; PVALID # SIGNWRITING HEAD RIM..SIGNWRITING AIR SUCKING +1DA37..1DA3A; DISALLOWED # SIGNWRITING AIR BLOW SMALL ROTATIONS..SIGNWRI +1DA3B..1DA6C; PVALID # SIGNWRITING MOUTH CLOSED NEUTRAL..SIGNWRITING +1DA6D..1DA74; DISALLOWED # SIGNWRITING SHOULDER HIP SPINE..SIGNWRITING T +1DA75 ; PVALID # SIGNWRITING UPPER BODY TILTING FROM HIP JOINT +1DA76..1DA83; DISALLOWED # SIGNWRITING LIMB COMBINATION..SIGNWRITING LOC +1DA84 ; PVALID # SIGNWRITING LOCATION HEAD NECK +1DA85..1DA8B; DISALLOWED # SIGNWRITING LOCATION TORSO..SIGNWRITING PAREN +1DA9B..1DA9F; PVALID # SIGNWRITING FILL MODIFIER-2..SIGNWRITING FILL +1DAA1..1DAAF; PVALID # SIGNWRITING ROTATION MODIFIER-2..SIGNWRITING +1F32D..1F32F; DISALLOWED # HOT DOG..BURRITO +1F37E..1F37F; DISALLOWED # BOTTLE WITH POPPING CORK..POPCORN +1F3CF..1F3D3; DISALLOWED # CRICKET BAT AND BALL..TABLE TENNIS PADDLE AND +1F3F8..1F3FF; DISALLOWED # BADMINTON RACQUET AND SHUTTLECOCK..EMOJI MODI +1F4FF ; DISALLOWED # PRAYER BEADS +1F54B..1F54F; DISALLOWED # KAABA..BOWL OF HYGIEIA +1F643..1F644; DISALLOWED # UPSIDE-DOWN FACE..FACE WITH ROLLING EYES +1F6D0 ; DISALLOWED # PLACE OF WORSHIP +1F910..1F918; DISALLOWED # ZIPPER-MOUTH FACE..SIGN OF THE HORNS +1F980..1F984; DISALLOWED # CRAB..UNICORN FACE +1F9C0 ; DISALLOWED # CHEESE WEDGE +2B820..2CEA1; PVALID # <CJK Ideograph Extension E>..<CJK Ideograph E + +Appendix C. Changes from Unicode 8.0.0 to Unicode 9.0.0 + + Changes from derived property value UNASSIGNED to either PVALID or + DISALLOWED. + +08B6..08BD ; PVALID # ARABIC LETTER BEH WITH SMALL MEEM ABOVE..ARAB +08D4..08E1 ; PVALID # ARABIC SMALL HIGH WORD AR-RUB..ARABIC SMALL H +08E2 ; DISALLOWED # ARABIC DISPUTED END OF AYAH +0C80 ; PVALID # KANNADA SIGN SPACING CANDRABINDU +0D4F ; DISALLOWED # MALAYALAM SIGN PARA +0D54..0D56 ; PVALID # MALAYALAM LETTER CHILLU M..MALAYALAM LETTER C +0D58..0D5E ; DISALLOWED # MALAYALAM FRACTION ONE ONE-HUNDRED-AND-SIXTIE +0D76..0D78 ; DISALLOWED # MALAYALAM FRACTION ONE SIXTEENTH..MALAYALAM F +1C80..1C88 ; DISALLOWED # CYRILLIC SMALL LETTER ROUNDED VE..CYRILLIC SM +1DFB ; PVALID # COMBINING DELETION MARK +23FB..23FE ; DISALLOWED # POWER SYMBOL..POWER SLEEP SYMBOL +2E43..2E44 ; DISALLOWED # DASH WITH LEFT UPTURN..DOUBLE SUSPENSION MARK +A7AE ; DISALLOWED # LATIN CAPITAL LETTER SMALL CAPITAL I +A8C5 ; PVALID # SAURASHTRA SIGN CANDRABINDU +1018D..1018E; DISALLOWED # GREEK INDICTION SIGN..NOMISMA SIGN +104B0..104D3; DISALLOWED # OSAGE CAPITAL LETTER A..OSAGE CAPITAL LETTER +104D8..104FB; PVALID # OSAGE SMALL LETTER A..OSAGE SMALL LETTER ZHA +1123E ; PVALID # KHOJKI SIGN SUKUN +11400..1144A; PVALID # NEWA LETTER A..NEWA SIDDHI +1144B..1144F; DISALLOWED # NEWA DANDA..NEWA ABBREVIATION SIGN +11450..11459; PVALID # NEWA DIGIT ZERO..NEWA DIGIT NINE +1145B ; DISALLOWED # NEWA PLACEHOLDER MARK +1145D ; DISALLOWED # NEWA INSERTION SIGN +11660..1166C; DISALLOWED # MONGOLIAN BIRGA WITH ORNAMENT..MONGOLIAN TURN +11C00..11C08; PVALID # BHAIKSUKI LETTER A..BHAIKSUKI LETTER VOCALIC +11C0A..11C36; PVALID # BHAIKSUKI LETTER E..BHAIKSUKI VOWEL SIGN VOCA +11C38..11C40; PVALID # BHAIKSUKI VOWEL SIGN E..BHAIKSUKI SIGN AVAGRA +11C41..11C45; DISALLOWED # BHAIKSUKI DANDA..BHAIKSUKI GAP FILLER-2 +11C50..11C59; PVALID # BHAIKSUKI DIGIT ZERO..BHAIKSUKI DIGIT NINE +11C5A..11C6C; DISALLOWED # BHAIKSUKI NUMBER ONE..BHAIKSUKI HUNDREDS UNIT +11C70..11C71; DISALLOWED # MARCHEN HEAD MARK..MARCHEN MARK SHAD +11C72..11C8F; PVALID # MARCHEN LETTER KA..MARCHEN LETTER A +11C92..11CA7; PVALID # MARCHEN SUBJOINED LETTER KA..MARCHEN SUBJOINE +11CA9..11CB6; PVALID # MARCHEN SUBJOINED LETTER YA..MARCHEN SIGN CAN +16FE0 ; PVALID # TANGUT ITERATION MARK +17000..187EC; PVALID # <Tangut Ideograph>..<Tangut Ideograph> +18800..18AF2; PVALID # TANGUT COMPONENT-001..TANGUT COMPONENT-755 +1E000..1E006; PVALID # COMBINING GLAGOLITIC LETTER AZU..COMBINING GL +1E008..1E018; PVALID # COMBINING GLAGOLITIC LETTER ZEMLJA..COMBINING +1E01B..1E021; PVALID # COMBINING GLAGOLITIC LETTER SHTA..COMBINING G +1E023..1E024; PVALID # COMBINING GLAGOLITIC LETTER YU..COMBINING GLA +1E026..1E02A; PVALID # COMBINING GLAGOLITIC LETTER YO..COMBINING GLA +1E900..1E921; DISALLOWED # ADLAM CAPITAL LETTER ALIF..ADLAM CAPITAL LETT +1E922..1E94A; PVALID # ADLAM SMALL LETTER ALIF..ADLAM NUKTA +1E950..1E959; PVALID # ADLAM DIGIT ZERO..ADLAM DIGIT NINE +1E95E..1E95F; DISALLOWED # ADLAM INITIAL EXCLAMATION MARK..ADLAM INITIAL +1F19B..1F1AC; DISALLOWED # SQUARED THREE D..SQUARED VOD +1F23B ; DISALLOWED # SQUARED CJK UNIFIED IDEOGRAPH-914D +1F57A ; DISALLOWED # MAN DANCING +1F5A4 ; DISALLOWED # BLACK HEART +1F6D1..1F6D2; DISALLOWED # OCTAGONAL SIGN..SHOPPING TROLLEY +1F6F4..1F6F6; DISALLOWED # SCOOTER..CANOE +1F919..1F91E; DISALLOWED # CALL ME HAND..HAND WITH INDEX AND MIDDLE FING +1F920..1F927; DISALLOWED # FACE WITH COWBOY HAT..SNEEZING FACE +1F930 ; DISALLOWED # PREGNANT WOMAN +1F933..1F93E; DISALLOWED # SELFIE..HANDBALL +1F940..1F94B; DISALLOWED # WILTED FLOWER..MARTIAL ARTS UNIFORM +1F950..1F95E; DISALLOWED # CROISSANT..PANCAKES +1F985..1F991; DISALLOWED # EAGLE..SQUID + +Appendix D. Changes from Unicode 9.0.0 to Unicode 10.0.0 + + Changes from derived property value UNASSIGNED to either PVALID or + DISALLOWED. + +0860..086A ; PVALID # SYRIAC LETTER MALAYALAM NGA..SYRIAC LETTER MA +09FC ; PVALID # BENGALI LETTER VEDIC ANUSVARA +09FD ; DISALLOWED # BENGALI ABBREVIATION SIGN +0AFA..0AFF ; PVALID # GUJARATI SIGN SUKUN..GUJARATI SIGN TWO-CIRCLE +0D00 ; PVALID # MALAYALAM SIGN COMBINING ANUSVARA ABOVE +0D3B..0D3C ; PVALID # MALAYALAM SIGN VERTICAL BAR VIRAMA..MALAYALAM +1CF7 ; PVALID # VEDIC SIGN ATIKRAMA +1DF6..1DF9 ; PVALID # COMBINING KAVYKA ABOVE RIGHT..COMBINING WIDE +20BF ; DISALLOWED # BITCOIN SIGN +23FF ; DISALLOWED # OBSERVER EYE SYMBOL +2BD2 ; DISALLOWED # GROUP MARK +2E45..2E49 ; DISALLOWED # INVERTED LOW KAVYKA..DOUBLE STACKED COMMA +312E ; PVALID # BOPOMOFO LETTER O WITH DOT ABOVE +9FD6..9FEA ; PVALID # <CJK Ideograph>..<CJK Ideograph> +1032D..1032F; PVALID # OLD ITALIC LETTER YE..OLD ITALIC LETTER SOUTH +11A00..11A3E; PVALID # ZANABAZAR SQUARE LETTER A..ZANABAZAR SQUARE C +11A3F..11A46; DISALLOWED # ZANABAZAR SQUARE INITIAL HEAD MARK..ZANABAZAR +11A47 ; PVALID # ZANABAZAR SQUARE SUBJOINER +11A50..11A83; PVALID # SOYOMBO LETTER A..SOYOMBO LETTER KSSA +11A86..11A99; PVALID # SOYOMBO CLUSTER-INITIAL LETTER RA..SOYOMBO SU +11A9A..11A9C; DISALLOWED # SOYOMBO MARK TSHEG..SOYOMBO MARK DOUBLE SHAD +11A9E..11AA2; DISALLOWED # SOYOMBO HEAD MARK WITH MOON AND SUN AND TRIPL +11D00..11D06; PVALID # MASARAM GONDI LETTER A..MASARAM GONDI LETTER +11D08..11D09; PVALID # MASARAM GONDI LETTER AI..MASARAM GONDI LETTER +11D0B..11D36; PVALID # MASARAM GONDI LETTER AU..MASARAM GONDI VOWEL +11D3A ; PVALID # MASARAM GONDI VOWEL SIGN E +11D3C..11D3D; PVALID # MASARAM GONDI VOWEL SIGN AI..MASARAM GONDI VO +11D3F..11D47; PVALID # MASARAM GONDI VOWEL SIGN AU..MASARAM GONDI RA +11D50..11D59; PVALID # MASARAM GONDI DIGIT ZERO..MASARAM GONDI DIGIT +16FE1 ; PVALID # NUSHU ITERATION MARK +1B002..1B11E; PVALID # HENTAIGANA LETTER A-1..HENTAIGANA LETTER N-MU +1B170..1B2FB; PVALID # NUSHU CHARACTER-1B170..NUSHU CHARACTER-1B2FB +1F260..1F265; DISALLOWED # ROUNDED SYMBOL FOR FU..ROUNDED SYMBOL FOR CAI +1F6D3..1F6D4; DISALLOWED # STUPA..PAGODA +1F6F7..1F6F8; DISALLOWED # SLED..FLYING SAUCER +1F900..1F90B; DISALLOWED # CIRCLED CROSS FORMEE WITH FOUR DOTS..DOWNWARD +1F91F ; DISALLOWED # I LOVE YOU HAND SIGN +1F928..1F92F; DISALLOWED # FACE WITH ONE EYEBROW RAISED..SHOCKED FACE WI +1F931..1F932; DISALLOWED # BREAST-FEEDING..PALMS UP TOGETHER +1F94C ; DISALLOWED # CURLING STONE +1F95F..1F96B; DISALLOWED # DUMPLING..CANNED FOOD +1F992..1F997; DISALLOWED # GIRAFFE FACE..CRICKET +1F9D0..1F9E6; DISALLOWED # FACE WITH MONOCLE..SOCKS +2CEB0..2EBE0; PVALID # <CJK Ideograph Extension F>..<CJK Ideograph E + +Appendix E. Changes from Unicode 10.0.0 to Unicode 11.0.0 + + Changes from derived property value DISALLOWED to PVALID. + + 111C9 ; PVALID # SHARADA SANDHI MARK + + Changes from derived property value UNASSIGNED to either PVALID or + DISALLOWED. + +0560 ; PVALID # ARMENIAN SMALL LETTER TURNED AYB +0588 ; PVALID # ARMENIAN SMALL LETTER YI WITH STROKE +05EF ; PVALID # HEBREW YOD TRIANGLE +07FD ; PVALID # NKO DANTAYALAN +07FE..07FF ; DISALLOWED # NKO DOROME SIGN..NKO TAMAN SIGN +08D3 ; PVALID # ARABIC SMALL LOW WAW +09FE ; PVALID # BENGALI SANDHI MARK +0A76 ; DISALLOWED # GURMUKHI ABBREVIATION SIGN +0C04 ; PVALID # TELUGU SIGN COMBINING ANUSVARA ABOVE +0C84 ; DISALLOWED # KANNADA SIGN SIDDHAM +1878 ; PVALID # MONGOLIAN LETTER CHA WITH TWO DOTS +1C90..1CBA ; DISALLOWED # GEORGIAN MTAVRULI CAPITAL LETTER AN..GEORGIAN +1CBD..1CBF ; DISALLOWED # GEORGIAN MTAVRULI CAPITAL LETTER AEN..GEORGIA +2BBA..2BBC ; DISALLOWED # OVERLAPPING WHITE SQUARES..OVERLAPPING BLACK +2BD3..2BEB ; DISALLOWED # PLUTO FORM TWO..STAR WITH RIGHT HALF BLACK +2BF0..2BFE ; DISALLOWED # ERIS FORM ONE..REVERSED RIGHT ANGLE +2E4A..2E4E ; DISALLOWED # DOTTED SOLIDUS..PUNCTUS ELEVATUS MARK +312F ; PVALID # BOPOMOFO LETTER NN +9FEB..9FEF ; PVALID # <CJK Ideograph>..<CJK Ideograph> +A7AF ; PVALID # LATIN LETTER SMALL CAPITAL Q +A7B8 ; DISALLOWED # LATIN CAPITAL LETTER U WITH STROKE +A7B9 ; PVALID # LATIN SMALL LETTER U WITH STROKE +A8FE..A8FF ; PVALID # DEVANAGARI LETTER AY..DEVANAGARI VOWEL SIGN A +10A34..10A35; PVALID # KHAROSHTHI LETTER TTTA..KHAROSHTHI LETTER VHA +10A48 ; DISALLOWED # KHAROSHTHI FRACTION ONE HALF +10D00..10D27; PVALID # HANIFI ROHINGYA LETTER A..HANIFI ROHINGYA SIG +10D30..10D39; PVALID # HANIFI ROHINGYA DIGIT ZERO..HANIFI ROHINGYA D +10F00..10F1C; PVALID # OLD SOGDIAN LETTER ALEPH..OLD SOGDIAN LETTER +10F1D..10F26; DISALLOWED # OLD SOGDIAN NUMBER ONE..OLD SOGDIAN FRACTION +10F27 ; PVALID # OLD SOGDIAN LIGATURE AYIN-DALETH +10F30..10F50; PVALID # SOGDIAN LETTER ALEPH..SOGDIAN COMBINING STROK +10F51..10F59; DISALLOWED # SOGDIAN NUMBER ONE..SOGDIAN PUNCTUATION HALF +110CD ; DISALLOWED # KAITHI NUMBER SIGN ABOVE +11144..11146; PVALID # CHAKMA LETTER LHAA..CHAKMA VOWEL SIGN EI +1133B ; PVALID # COMBINING BINDU BELOW +1145E ; PVALID # NEWA SANDHI MARK +1171A ; PVALID # AHOM LETTER ALTERNATE BA +11800..1183A; PVALID # DOGRA LETTER A..DOGRA SIGN NUKTA +1183B ; DISALLOWED # DOGRA ABBREVIATION SIGN +11A9D ; PVALID # SOYOMBO MARK PLUTA +11D60..11D65; PVALID # GUNJALA GONDI LETTER A..GUNJALA GONDI LETTER +11D67..11D68; PVALID # GUNJALA GONDI LETTER EE..GUNJALA GONDI LETTER +11D6A..11D8E; PVALID # GUNJALA GONDI LETTER OO..GUNJALA GONDI VOWEL +11D90..11D91; PVALID # GUNJALA GONDI VOWEL SIGN EE..GUNJALA GONDI VO +11D93..11D98; PVALID # GUNJALA GONDI VOWEL SIGN OO..GUNJALA GONDI OM +11DA0..11DA9; PVALID # GUNJALA GONDI DIGIT ZERO..GUNJALA GONDI DIGIT +11EE0..11EF6; PVALID # MAKASAR LETTER KA..MAKASAR VOWEL SIGN O +11EF7..11EF8; DISALLOWED # MAKASAR PASSIMBANG..MAKASAR END OF SECTION +16E40..16E5F; DISALLOWED # MEDEFAIDRIN CAPITAL LETTER M..MEDEFAIDRIN CAP +16E60..16E7F; PVALID # MEDEFAIDRIN SMALL LETTER M..MEDEFAIDRIN SMALL +16E80..16E9A; DISALLOWED # MEDEFAIDRIN DIGIT ZERO..MEDEFAIDRIN EXCLAMATI +187ED..187F1; PVALID # <Tangut Ideograph>..<Tangut Ideograph> +1D2E0..1D2F3; DISALLOWED # MAYAN NUMERAL ZERO..MAYAN NUMERAL NINETEEN +1D372..1D378; DISALLOWED # IDEOGRAPHIC TALLY MARK ONE..TALLY MARK FIVE +1EC71..1ECB4; DISALLOWED # INDIC SIYAQ NUMBER ONE..INDIC SIYAQ ALTERNATE +1F12F ; DISALLOWED # COPYLEFT SYMBOL +1F6F9 ; DISALLOWED # SKATEBOARD +1F7D5..1F7D8; DISALLOWED # CIRCLED TRIANGLE..NEGATIVE CIRCLED SQUARE +1F94D..1F94F; DISALLOWED # LACROSSE STICK AND BALL..FLYING DISC +1F96C..1F970; DISALLOWED # LEAFY GREEN..SMILING FACE WITH SMILING EYES A +1F973..1F976; DISALLOWED # FACE WITH PARTY HORN AND PARTY HAT..FREEZING +1F97A ; DISALLOWED # FACE WITH PLEADING EYES +1F97C..1F97F; DISALLOWED # LAB COAT..FLAT SHOE +1F998..1F9A2; DISALLOWED # KANGAROO..SWAN +1F9B0..1F9B9; DISALLOWED # EMOJI COMPONENT RED HAIR..SUPERVILLAIN +1F9C1..1F9C2; DISALLOWED # CUPCAKE..SALT SHAKER +1F9E7..1F9FF; DISALLOWED # RED GIFT ENVELOPE..NAZAR AMULET +1FA60..1FA6D; DISALLOWED # XIANGQI RED GENERAL..XIANGQI BLACK SOLDIER + +Appendix F. Changes from Unicode 11.0.0 to Unicode 12.0.0 + + Changes from derived property value UNASSIGNED to either PVALID or + DISALLOWED. + +0C77 ; DISALLOWED # TELUGU SIGN SIDDHAM +0E86 ; PVALID # LAO LETTER PALI GHA +0E89 ; PVALID # LAO LETTER PALI CHA +0E8C ; PVALID # LAO LETTER PALI JHA +0E8E..0E93 ; PVALID # LAO LETTER PALI NYA..LAO LETTER PALI NNA +0E98 ; PVALID # LAO LETTER PALI DHA +0EA0 ; PVALID # LAO LETTER PALI BHA +0EA8..0EA9 ; PVALID # LAO LETTER SANSKRIT SHA..LAO LETTER SANSKRIT +0EAC ; PVALID # LAO LETTER PALI LLA +0EBA ; PVALID # LAO SIGN PALI VIRAMA +1CFA ; PVALID # VEDIC SIGN DOUBLE ANUSVARA ANTARGOMUKHA +2BC9 ; DISALLOWED # NEPTUNE FORM TWO +2BFF ; DISALLOWED # HELLSCHREIBER PAUSE SYMBOL +2E4F ; DISALLOWED # CORNISH VERSE DIVIDER +A7BA ; DISALLOWED # LATIN CAPITAL LETTER GLOTTAL A +A7BB ; PVALID # LATIN SMALL LETTER GLOTTAL A +A7BC ; DISALLOWED # LATIN CAPITAL LETTER GLOTTAL I +A7BD ; PVALID # LATIN SMALL LETTER GLOTTAL I +A7BE ; DISALLOWED # LATIN CAPITAL LETTER GLOTTAL U +A7BF ; PVALID # LATIN SMALL LETTER GLOTTAL U +A7C2 ; DISALLOWED # LATIN CAPITAL LETTER ANGLICANA W +A7C3 ; PVALID # LATIN SMALL LETTER ANGLICANA W +A7C4..A7C6 ; DISALLOWED # LATIN CAPITAL LETTER C WITH PALATAL HOOK..LAT +AB66..AB67 ; PVALID # LATIN SMALL LETTER DZ DIGRAPH WITH RETROFLEX +10FE0..10FF6; PVALID # ELYMAIC LETTER ALEPH..ELYMAIC LIGATURE ZAYIN- +1145F ; PVALID # NEWA LETTER VEDIC ANUSVARA +116B8 ; PVALID # TAKRI LETTER ARCHAIC KHA +119A0..119A7; PVALID # NANDINAGARI LETTER A..NANDINAGARI LETTER VOCA +119AA..119D7; PVALID # NANDINAGARI LETTER E..NANDINAGARI VOWEL SIGN +119DA..119E1; PVALID # NANDINAGARI VOWEL SIGN E..NANDINAGARI SIGN AV +119E2 ; DISALLOWED # NANDINAGARI SIGN SIDDHAM +119E3..119E4; PVALID # NANDINAGARI HEADSTROKE..NANDINAGARI VOWEL SIG +11A84..11A85; PVALID # SOYOMBO SIGN JIHVAMULIYA..SOYOMBO SIGN UPADHM +11FC0..11FF1; DISALLOWED # TAMIL FRACTION ONE THREE-HUNDRED-AND-TWENTIET +11FFF ; DISALLOWED # TAMIL PUNCTUATION END OF TEXT +13430..13438; DISALLOWED # EGYPTIAN HIEROGLYPH VERTICAL JOINER..EGYPTIAN +16F45..16F4A; PVALID # MIAO LETTER BRI..MIAO LETTER RTE +16F4F ; PVALID # MIAO SIGN CONSONANT MODIFIER BAR +16F7F..16F87; PVALID # MIAO VOWEL SIGN UOG..MIAO VOWEL SIGN UI +16FE2 ; DISALLOWED # OLD CHINESE HOOK MARK +16FE3 ; PVALID # OLD CHINESE ITERATION MARK +187F2..187F7; PVALID # <Tangut Ideograph>..<Tangut Ideograph> +1B150..1B152; PVALID # HIRAGANA LETTER SMALL WI..HIRAGANA LETTER SMA +1B164..1B167; PVALID # KATAKANA LETTER SMALL WI..KATAKANA LETTER SMA +1E100..1E12C; PVALID # NYIAKENG PUACHUE HMONG LETTER MA..NYIAKENG PU +1E130..1E13D; PVALID # NYIAKENG PUACHUE HMONG TONE-B..NYIAKENG PUACH +1E140..1E149; PVALID # NYIAKENG PUACHUE HMONG DIGIT ZERO..NYIAKENG P +1E14E ; PVALID # NYIAKENG PUACHUE HMONG LOGOGRAM NYAJ +1E14F ; DISALLOWED # NYIAKENG PUACHUE HMONG CIRCLED CA +1E2C0..1E2F9; PVALID # WANCHO LETTER AA..WANCHO DIGIT NINE +1E2FF ; DISALLOWED # WANCHO NGUN SIGN +1E94B ; PVALID # ADLAM NASALIZATION MARK +1ED01..1ED3D; DISALLOWED # OTTOMAN SIYAQ NUMBER ONE..OTTOMAN SIYAQ FRACT +1F16C ; DISALLOWED # RAISED MR SIGN +1F6D5 ; DISALLOWED # HINDU TEMPLE +1F6FA ; DISALLOWED # AUTO RICKSHAW +1F7E0..1F7EB; DISALLOWED # LARGE ORANGE CIRCLE..LARGE BROWN SQUARE +1F90D..1F90F; DISALLOWED # WHITE HEART..PINCHING HAND +1F93F ; DISALLOWED # DIVING MASK +1F971 ; DISALLOWED # YAWNING FACE +1F97B ; DISALLOWED # SARI +1F9A5..1F9AA; DISALLOWED # SLOTH..OYSTER +1F9AE..1F9AF; DISALLOWED # GUIDE DOG..PROBING CANE +1F9BA..1F9BF; DISALLOWED # SAFETY VEST..MECHANICAL LEG +1F9C3..1F9CA; DISALLOWED # BEVERAGE BOX..ICE CUBE +1F9CD..1F9CF; DISALLOWED # STANDING PERSON..DEAF PERSON +1FA00..1FA53; DISALLOWED # NEUTRAL CHESS KING..BLACK CHESS KNIGHT-BISHOP +1FA70..1FA73; DISALLOWED # BALLET SHOES..SHORTS +1FA78..1FA7A; DISALLOWED # DROP OF BLOOD..STETHOSCOPE +1FA80..1FA82; DISALLOWED # YO-YO..PARACHUTE +1FA90..1FA95; DISALLOWED # RINGED PLANET..BANJO + +Acknowledgments + + Thanks to Harald Alvestrand, Marc Blanchet, Martin Dürst, Asmus + Freytag, Ted Hardie, John Klensin, Erik Nordmark, Pete Resnick, Peter + Saint-Andre, Michel Suignard, Andrew Sullivan, and Suzanne Woolf for + input to this document. + +Author's Address + + Patrik Fältström + Netnod + Email: paf@netnod.se |