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          <blockquote>
            <h1>Property Value Stability Table</h1>
   <p>This table shows the property value stability clauses from
   <a href="http://www.unicode.org/policies/stability_policy.html#Property_Value">
   Character Encoding Stability</a>, organized by property instead of Unicode 
   version.</p>
           
           
  <div align="center">
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  <table cellspacing="0" cellpadding="4" style="border-collapse: collapse; "border="1">
      <tr>
        <td align="left" valign="top"><b>Property Group</b></td>
        <td style="text-align: left" valign="top"><b>Applicable Properties </b></td>
        <td align="left" valign="top"><b>Constraints</b></td>
        <td style="text-align: left" valign="top">
   <p><b>Applicable Unicode Versions </b></p>
                   </td>
      </tr>
      <tr>
        <td align="left" valign="top" rowspan="2">Bidi </td>
        <td style="text-align: left" valign="top">Bidi_Class (bc) </td>
        <td align="left" valign="top">The Bidi_Class property values will not be further subdivided. </td>
        <td style="text-align: left" valign="top">3.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Bidi_Class (bc),<br> Bidi_Mirrored (Bidi_M) </td>
        <td align="left" valign="top">The property values for the bidirectional properties Bidi_Class and 
        Bidi_Mirrored preserve canonical equivalence. </td>
        <td style="text-align: left" valign="top">4.0.0+ </td>
      </tr>
      <tr>
        <td align="left" valign="top" rowspan="2">Case </td>
        <td style="text-align: left" valign="top">Case_Folding (cf) </td>
        <td align="left" valign="top">The Case_Folding property value is limited so that no string when 
        case folded expands to more than 3× in length (measured in code units). </td>
        <td style="text-align: left" valign="top">3.0.1+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Lowercase (Lower), <br>Uppercase (Upper),<br>
        Alphabetic (Alpha) </td>
        <td align="left" valign="top">All characters with the Lowercase property and all characters with 
        the Uppercase property have the Alphabetic property. </td>
        <td style="text-align: left" valign="top">4.1.0+ </td>
      </tr>
      <tr>
        <td align="left" valign="top" rowspan="7">General</td>
        <td style="text-align: left" valign="top">General_Category (gc) </td>
        <td align="left" valign="top">The General_Category property values will not be further subdivided. </td>
        <td style="text-align: left" valign="top">2.1.3+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">General_Category (gc) </td>
        <td align="left" valign="top">The General_Category property value Control (Cc) is immutable: the 
        set of code points with that value will never change. </td>
        <td style="text-align: left" valign="top">1.1.5+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">General_Category (gc) </td>
        <td align="left" valign="top">The General_Category property value Private_Use (Co) is immutable: 
        the set of code points with that value will never change. </td>
        <td style="text-align: left" valign="top">2.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">General_Category (gc) </td>
        <td align="left" valign="top">The General_Category property value Surrogate (Cs) is immutable: the 
        set of code points with that value will never change. </td>
        <td align="left" valign="top">2.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">General_Category (gc),<br> Numeric_Type (nt) </td>
        <td align="left" valign="top">The set of characters having General_Category=Nd will always be the 
        same as the set of characters having Numeric_Type=de. </td>
        <td align="left" valign="top">4.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Name (na),<br>Jamo_Short_Name (JSN) </td>
        <td align="left" valign="top">Once a character is assigned, both its Name and its Jamo_Short_Name 
        will never change. </td>
        <td align="left" valign="top">2.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Noncharacter_Code_Point (Nchar) </td>
        <td align="left" valign="top">The Noncharacter_Code_Point property is an immutable code point 
        property, which means that its property values for all Unicode code 
        points will never change.</td>
        <td align="left" valign="top">3.1.0+ </td>
      </tr>
      <tr>
        <td align="left" valign="top" rowspan="8">Identifiers</td>
        <td style="text-align: left" valign="top">ID_Continue (IDC) </td>
        <td align="left" valign="top">Once a character is ID_Continue, it must continue to be so in all 
        future versions. </td>
        <td align="left" valign="top">3.0.1+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">ID_Start (IDS) </td>
        <td align="left" valign="top">If a character is ID_Start then it must also be ID_Continue. </td>
        <td style="text-align: left" valign="top">3.0.1+&nbsp; </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">ID_Start (IDS) </td>
        <td align="left" valign="top">Once a character is ID_Start, it must continue to be so in all 
        future versions. </td>
        <td align="left" valign="top">3.0.1+&nbsp; </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">XID_Continue (XIDC) </td>
        <td align="left" valign="top">Once a character is XID_Continue, it must continue to be so in all 
        future versions. </td>
        <td style="text-align: left" valign="top">3.0.1+</td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">XID_Start (XIDS) </td>
        <td align="left" valign="top">If a character is XID_Start then it must also be XID_Continue. </td>
        <td style="text-align: left" valign="top">3.0.1+</td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">XID_Start (XIDS) </td>
        <td align="left" valign="top">Once a character is XID_Start, it must continue to be so in all 
        future versions. </td>
        <td style="text-align: left" valign="top">3.0.1+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Pattern_Syntax (Pat_Syn),<br> 
        Pattern_White_Space (Pat_WS) </td>
        <td align="left" valign="top">The Pattern_Syntax and Pattern_White_Space 
        properties are immutable code point properties, which means that their 
        property values for all Unicode code points will never change. </td>
        <td style="text-align: left" valign="top">4.1.0+</td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Pattern_Syntax (Pat_Syn),<br> 
        Pattern_White_Space, (Pat_WS), ID_Continue (IDC),<br> XID_Continue (XIDC)</td>
        <td align="left" valign="top">If a character has the Pattern_Syntax or 
        Pattern_White_Space property, then it cannot have the ID_Continue or 
        XID_Continue property.</td>
        <td style="text-align: left" valign="top">4.1.0+</td>
      </tr>
      <tr>
        <td align="left" valign="top" rowspan="7">Normalization </td>
        <td style="text-align: left" valign="top">Canonical_Combining_Class (ccc) </td>
        <td align="left" valign="top">The Canonical_Combining_Class property values are limited to the 
        values 0 to 255. </td>
        <td style="text-align: left" valign="top">1.1.5+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Canonical_Combining_Class (ccc) </td>
        <td align="left" valign="top">Once a character is assigned, its Canonical_Combining_Class will 
        never change. </td>
        <td style="text-align: left" valign="top">3.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Canonical_Combining_Class (ccc),<br> 
        General_Category (gc) </td>
        <td align="left" valign="top">All characters other than those with General_Category property 
        values Spacing_Mark (Mc) and Nonspacing_Mark (Mn) have the 
        Canonical_Combining_Class property value 0. </td>
        <td style="text-align: left" valign="top">1.1.5+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Decomposition_Mapping (dm) </td>
        <td align="left" valign="top">Canonical and compatibility mappings (Decomposition_Mapping property 
        values) are always in canonical order, and the resulting recursive 
        decomposition will also be in canonical order. </td>
        <td style="text-align: left" valign="top">2.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Decomposition_Mapping (dm) </td>
        <td align="left" valign="top">Canonical mappings (Decomposition_Mapping property values) are 
        always limited either to a single value or to a pair. The second 
        character in the pair cannot itself have a canonical mapping. </td>
        <td style="text-align: left" valign="top">2.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Decomposition_Mapping (dm) </td>
        <td align="left" valign="top">Canonical mappings (Decomposition_Mapping property values) are 
        always limited so that no string when normalized to NFC expands to more 
        than 3× in length (measured in code units). </td>
        <td style="text-align: left" valign="top">2.0.0+ </td>
      </tr>
      <tr>
        <td style="text-align: left" valign="top">Decomposition_Mapping (dm) </td>
        <td align="left" valign="top">Once a character is assigned, its Decomposition_Mapping will never 
        change. </td>
        <td style="text-align: left" valign="top">4.0.0+ </td>
      </tr>
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