Update changes section (#452)

* Update changes section

* Correct spelling of hexadecimal

* Update changes section

* Update date

index.html

@@ -7615,7 +7615,25 @@ <h2 class="Annex">Changes</h2>
     <h3 id="changes-20230921">Changes since the <a href="https://www.w3.org/TR/2023/CR-png-3-20230921/">Candidate Recommendation Snapshot of 21 September 2023 (Third Edition)</a></h3>
 
     <ul>
-      <!-- to 20 Feb 2024 -->
+      <!-- to 10 Jun 2024 -->
+      <li>Added private bit depth and colour type fields</li>
+      <li>Listed both decimal and hexadecimal values in MaxCLL and MaxFALL examples<li>
+      <li>Corrected terminology in mDCv section</li>
+      <li>Corrected "PNG image" in cHRM section</li>
+      <li>Consolidated color chunk precedence information</li>
+      <li>Added order of precedence for color space chunks</li>
+      <li>Clarified color chunk priorities description</li>
+      <li>Mark SMPTE RP 2077 as informative, since it is not freely available</li>
+      <li>Added color chunk priority table</li>
+      <li>Clarified alpha channels are always full-range</li>
+      <li>Added EOTF and OETF definitions</li>
+      <li>Added recommendation for handling negative values resulting from narrow-range images using an extended range transfer function</li>
+      <li>Clarified "video" from "video full range flag) is used to match H.273 wording but still applies to still images</li>
+      <li>Added link to IANA subtag registry</li>
+      <li>Fixed links to alhpa compaction and alpha separation sections</li>
+      <li>Fixed broken tRNS link</li>
+      <li>Added Display P3 cICP example</li>
+      <li>Changed "perceived" wording to "measured", as luminance and chromaticity don't define a perceived color</li>
       <li>Clarified which metadata forms part of HDR10</li>
       <li>Updated link to latest version of ITU-R BT.2390</li>
       <li>Noted that currently there is no published standard to adapt an SDR image from default viewing conditions (display luminance and ambient illumination) to those given in <span class="chunk">mDCV</span></li>