Unicode 18.0.0
Unicode 18.0.0
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Unicode® 18.0.0 (DRAFT)
2026 September NN (Announcement)
STATUS: This is a preliminary draft page for an upcoming release. Some details may be missing or incorrect, and some links may be wrong or broken. During the beta review period, feedback about errors on this page will be helpful and appreciated.
This page summarizes the important changes for the Unicode Standard, Version 18.0.0.<br>This version supersedes all previous versions of the Unicode Standard.
A. Summary
B. Technical Overview
Core Specification
Code Charts
Han Radical-Stroke Indices
Unicode Standard Annexes
Unicode Character Database
Version References
Errata
C. Stability Policy Update
D. Textual Changes and Character Additions
E. Conformance Changes
F. Changes in the Unicode Character Database
G. Changes in the Unicode Standard Annexes
H. Changes in Synchronized Unicode Technical Standards
I. List of Components
M. Implications for Migration
A. Summary
Unicode 18.0 adds 13,047 characters,<br>for a total of 172,848 characters.<br>The new additions include 4 new scripts:
Chisoi
Proto-Cuneiform (numerals)
Jurchen
Seal
New Data Files for Unicode 18.0
JurchenSources.txt
SealSources.txt
Synchronization
Several other important Unicode specifications have been updated for Version 18.0.<br>The following five Unicode Technical Standards are versioned in<br>synchrony with the Unicode Standard, because their data files cover the same repertoire.<br>All have been updated to Version 18.0:
Specification<br>Scope<br>Data Files
UTS #10, Unicode Collation Algorithm<br>Sorting Unicode text<br>UCA data
UTS #39, Unicode Security Mechanisms<br>Reducing Unicode spoofing<br>Security data
UTS #46, Unicode IDNA Compatibility Processing<br>Compatible processing of non-ASCII URLs<br>IDNA data
IDNA 2008 derived data
UTS #51, Unicode Emoji<br>Emoji and their behavior<br>Emoji data
UTS #58, Unicode Link Detection and Formatting: URLs and Email Addresses<br>Linkification of URLs and email addresses<br>Linkification data
Some of the changes in Version 18.0 and associated Unicode Technical Standards<br>may require modifications<br>to implementations. For more information, see the migration and modification sections of<br>those specifications.
See Sections D through H below for additional details regarding the changes in this version of<br>the Unicode Standard, its associated annexes, and the other synchronized Unicode specifications.
See the following resource links for general information about Unicode versions<br>and other information about the Unicode Standard and other publications<br>of the Unicode Consortium.
Archive of Unicode Versions
About Versions
Glossary of Unicode Terms
References for the Unicode Standard
Unicode Acknowledgements
Technical Reports
Unicode Emoji
B. Technical Overview
Version 18.0 of the Unicode Standard consists of:
The core specification
The code charts (delta and archival) for this version
The Unicode Standard Annexes
The Unicode Character Database (UCD)
The core specification gives the general principles,<br>requirements for conformance, and guidelines for implementers. The<br>code charts show representative glyphs for all the Unicode<br>characters. The Unicode Standard Annexes supply detailed normative<br>information about particular aspects of the standard. The Unicode<br>Character Database supplies normative and informative data for<br>implementers to allow them to implement the Unicode Standard.
Core Specification
The core specification for Version 18.0 is available for browsing online<br>as per-chapter web pages. Because the full table of contents for the core specification is provided,<br>with interactive links, no separate bookmarks page is provided for this release,<br>nor are separate chapter links provided directly in this summary page<br>for the Unicode Standard.<br>Anchors for chapters, sections, tables, and figures in the core specification are<br>shown with the convention of a "#" in the left margin of the heading or caption.<br>Those anchors can be clicked on to provide custom bookmarks to any particular<br>portion of the text, down to the level of subsections.
The HTML version of the core specification is authoritative. However, for<br>convenience of reference, an archival<br>version of core specification is also available as<br>a single pdf. (13 MB)
Code Charts
Several sets of code charts are available. They serve different<br>purposes:
Chart Type<br>Description
Code Charts<br>Block-by-block code charts for Version 18.0.0. The charts are organized by<br>scripts and blocks for easy reference.<br>An interactive index by character name<br>is also provided. Tableaux des caractères<br>provides a French translation of these latest code charts. -->
Delta Code Charts<br>These charts show the<br>new blocks and any blocks in which characters were added<br>specifically for Unicode 18.0.0. The new characters and any major updates to the<br>representative glyphs are visually highlighted in these charts.
Consolidated Code Charts<br>These charts are distributed as a single...