diff --git a/build.gradle b/build.gradle
index 129da29e..20f94385 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,8 +18,8 @@ buildscript {
     classpath group: 'org.docbook', name: 'docbook-schemas', version: '5.1-1'
     classpath group: 'com.xmlcalabash', name: 'xmlcalabash1-print', version: '1.1.5'
     classpath group: 'com.xmlcalabash', name: 'xmlcalabash1-gradle', version: '1.4.0'
-    classpath group: 'com.xmlcalabash', name: 'xmlcalabash', version: '1.3.2-99'
-    classpath group: 'org.xmlresolver', name: 'xmlresolver', version: '3.0.2'
+    classpath group: 'com.xmlcalabash', name: 'xmlcalabash', version: '1.5.7-120'
+    classpath group: 'org.xmlresolver', name: 'xmlresolver', version: '5.3.0'
   }
 }
 
diff --git a/src/main/resources/js/scroll.js b/src/main/resources/js/scroll.js
new file mode 100644
index 00000000..1c2ece82
--- /dev/null
+++ b/src/main/resources/js/scroll.js
@@ -0,0 +1,411 @@
+const DELETED = "rgb(255, 85, 85, 0.3)";
+const ADDED = "rgb(144, 238, 144, 0.3)";
+
+class DXmlView {
+  constructor() {
+    this.body = document.querySelector("body");
+
+    this.old_classes = ["deltaxml-old", "deltaxml-old-img", "deltaxml-old-format"];
+    this.new_classes = ["deltaxml-new", "deltaxml-new-img", "deltaxml-new-format"];
+    this.del_classes = ["delete_version"];
+    this.add_classes = ["add_version"];
+    this.mod_classes = ["modify_version"];
+
+    this.all_classes = [];
+    this.old_classes.forEach(name => { this.all_classes.push(name); });
+    this.new_classes.forEach(name => { this.all_classes.push(name); });
+    this.del_classes.forEach(name => { this.all_classes.push(name); });
+    this.add_classes.forEach(name => { this.all_classes.push(name); });
+    this.mod_classes.forEach(name => { this.all_classes.push(name); });
+
+    // Turn the classes into selector patterns
+    let patterns = [];
+    this.all_classes.forEach(name => { patterns.push("."+name); });
+
+    this.all_selector = patterns.join(",");
+
+    // Select any element in the ToC; we want to exclude these
+    // because they're in a separate scroll and that messes with
+    // with the next/previous functionality
+    let tocSelector = "";
+    patterns.forEach(pattern => {
+      if (tocSelector !== "") {
+        tocSelector += ",";
+      }
+      tocSelector += "#toc " + pattern;
+    });
+
+    this.toc_diff = [];
+    document.querySelectorAll(tocSelector).forEach(item => {
+      this.toc_diff.push(item);
+    });
+
+    this.all_diff = [];
+    this.xml_diff = [];
+    document.querySelectorAll(this.all_selector).forEach(item => {
+      this.all_diff.push(item);
+      if (!this.toc_diff.includes(item)) {
+        this.xml_diff.push(item);
+      }
+    });
+
+    this.visible_diff = [];
+    this.visible_offset = [];
+    this.recalculate = true;
+    this.fading = false;
+    this.stylemap = new Map();
+
+    this.fadingMessage(`  (${this.xml_diff.length.toLocaleString()} differences)`);
+  }
+
+  fadingMessage(message) {
+    let span = document.querySelector("#__autodiff__");
+    if (span) {
+      span.innerHTML = message;
+      span.className = "autoshow";
+
+      if (!this.fading) {
+        this.fading = true;
+        let outer = this;
+        setTimeout(function(){
+          span.className = "autohide";
+          setTimeout(function(){
+            span.innerHTML = "";
+            span.className = "";
+            outer.fading = false;
+          }, 5000);
+        }, 100);
+      }
+    }
+  }
+  
+  absoluteTop(item) {
+    let top = item.offsetTop;
+    while (item && item.offsetParent !== this.body) {
+      item = item.offsetParent;
+      if (item === null) {
+        return -1;
+      }
+      top += item.offsetTop;
+    }
+    return top;
+  }
+
+  find_visible_diffs() {
+    this.visible_diff = [];
+    this.visible_offset = [];
+    this.xml_diff.forEach(item => {
+      let ofs = this.absoluteTop(item);
+      if (ofs >= 0) {
+        this.visible_diff.push(item);
+        this.visible_offset.push(ofs);
+      }
+    });
+    this.recalculate = false;
+    window.DIFF = this.visible_diff;
+  }
+
+  scroll_forward() {
+    if (this.recalculate) {
+      this.find_visible_diffs();
+    }
+
+    let topY = window.scrollY;
+    let bottomY = window.scrollY + window.innerHeight - 1;
+    let halfY = (bottomY - topY) / 2;
+
+    let curOffset = 0;
+    let cur_diff = 0;
+    while (cur_diff < this.visible_offset.length
+           && this.visible_offset[cur_diff] < topY) {
+      cur_diff++;
+      curOffset = this.visible_offset[cur_diff];
+    }
+
+    while (curOffset < bottomY && cur_diff < this.visible_diff.length) {
+      cur_diff++;
+      curOffset = this.visible_offset[cur_diff];
+    }
+
+    if (cur_diff < this.visible_diff.length) {
+      window.scrollTo(0, curOffset - halfY);
+      this.fadingMessage(`Difference ${cur_diff.toLocaleString()} of ${this.xml_diff.length.toLocaleString()}.`);
+    } else {
+      this.fadingMessage("There are no more following differences.");
+    }
+  }
+
+  scroll_backward() {
+    if (this.recalculate) {
+      this.find_visible_diffs();
+    }
+
+    let topY = window.scrollY;
+    let bottomY = window.scrollY + window.innerHeight - 1;
+    let halfY = (bottomY - topY) / 2;
+
+    let curOffset = 0;
+    let cur_diff = 0;
+    while (cur_diff < this.visible_offset.length
+           && this.visible_offset[cur_diff] < topY) {
+      cur_diff++;
+      curOffset = this.visible_offset[cur_diff];
+    }
+
+    if (cur_diff > 0) {
+      cur_diff--;
+      curOffset = this.visible_offset[cur_diff];
+      if (cur_diff < this.visible_diff.length) {
+        window.scrollTo(0, curOffset - halfY);
+        this.fadingMessage(`Difference ${cur_diff.toLocaleString()} of ${this.xml_diff.length.toLocaleString()}.`);
+      }
+    } else {
+      this.fadingMessage("The are no more preceding differences.");
+    }
+  }
+
+  displayType(span) {
+    if (span.localName === "tr") {
+      return "table-row";
+    }
+
+    if (span.localName === "li") {
+      return "list-item";
+    }
+    
+    return "inline";
+  }
+
+  view_old() {
+    this.restore_view();
+    this.all_diff.forEach(span => {
+      let displayType = this.displayType(span);
+      if (this.old_classes.includes(span.className) || this.del_classes.includes(span.className)) {
+        span.style.display = displayType;
+        span.style.background="#FFF";
+        //need to take border off images
+        span.querySelectorAll("img").forEach(img => {
+          img.style.border = "none";
+        });
+      } else {
+        span.style.display = "none";
+      }
+    });
+  }
+
+  view_new() {
+    this.restore_view();
+    this.all_diff.forEach(span => {
+      let displayType = this.displayType(span);
+      if (this.new_classes.includes(span.className) || this.add_classes.includes(span.className)) {
+        span.style.display = displayType;
+        span.style.background = "#FFF";
+        //need to take border off images
+        span.querySelectorAll("img").forEach(img => {
+          img.style.border = "none";
+        });
+      } else {
+        span.style.display = "none";
+      }
+    });
+  }
+
+  view_both() {
+    this.restore_view();
+    this.all_diff.forEach(span => {
+      let displayType= this.displayType(span);
+      if (this.new_classes.includes(span.className)) {
+        span.style.display = displayType;
+        span.style.background = ADDED
+        //need to add border to images
+        span.querySelectorAll("img").forEach(img => {
+          img.style.border = "2px solid green";
+        });
+      } else if (this.old_classes.includes(span.className)) {
+        span.style.display = displayType;
+        span.style.background = DELETED;
+        //need to add border to images
+        span.querySelectorAll("img").forEach(img => {
+          img.style.border = "2px solid red";
+        });
+      } else if (this.add_classes.includes(span.className)
+                 || this.del_classes.includes(span.className)) {
+        span.style.display = "none";
+      } else {
+        span.style.display= displayType;
+      }
+    });
+  }
+
+  view_only() {
+    this.restore_view();
+    this.recursediffs(document.querySelector("body"));
+    let buttons = document.querySelector("#_autodiff_buttons");
+    if (buttons) {
+      buttons.style.display = "block";
+    }
+    this.recalculate = true;
+  }
+
+  restore_view() {
+    if (this.stylemap.size === 0) {
+      return;
+    }
+
+    const nodeIter = this.stylemap.entries();
+    let item = nodeIter.next();
+    while (!item.done) {
+      const node = item.value[0];
+      for (const [key, value] of Object.entries(item.value[1])) {
+        if (node.style) {
+          node.style[key] = value;
+        } else {
+          node.style.display = value;
+        }
+      }
+      item = nodeIter.next();
+    }
+
+    this.stylemap.clear();
+    this.recalculate = true;
+  }
+   
+  recursediffs(root) {
+    for (const child of root.children) {
+      this.stylemap.set(child, {'display': child.style.display});
+
+      // Don't bother computing the intersection if child.classList is empty
+      let intersect = [];
+      if (child.classList.length > 0) {
+        intersect = this.all_classes.filter(name => child.classList.contains(name));
+      }
+      
+      if (intersect.length > 0) {
+        console.log("I:", child);
+        this.find_header(child);
+      } else {
+        if (child.querySelector(this.all_selector)) {
+          this.recursediffs(child);
+        } else {
+          child.style.display = "none";
+        }
+      }
+    }
+  }
+
+  find_header(node) {
+    let header = node.nodeName === "SECTION"
+    while (!header) {
+      node = node.parentNode
+      if (node.nodeName === "BODY") {
+        // bail!
+        return
+      }
+      header = node.nodeName === "SECTION"
+    }
+    let title = node.querySelector(".section-titlepage")
+    title.style.display = "block"
+
+    node.style["border-top"] = "6px dotted " + DELETED;
+    node.style["padding-top"] = "20px";
+    node.style["margin-top"] = "20px";
+  }
+
+  mark_change(node, className, color, changebarColor) {
+    node.classList.add(className);
+    node.style["background-color"] = color;
+    if (className == "deltaxml-old") {
+      node.style["text-decoration-line"] = "line-through";
+      node.style["text-decoration-color"] = "#555555";
+    }
+
+    for (const child of node.children) {
+      child.classList.remove(className);
+      child.style["background-color"] = "transparent"
+      if (child.nodeName == "DIV" || child.nodeName == "P" || child.nodeName == "LI"
+        ||  child.nodeName == "DT" || child.nodeName == "DD") {
+          child.style["border-right"] = "none";
+          if (className == "deltaxml-old") {
+            node.style["text-decoration"] = "none";
+          }
+        }
+    }
+
+    if (node.nodeName == "DIV" || node.nodeName == "P" || node.nodeName == "LI"
+      || node.nodeName == "DT" || node.nodeName == "DD") {
+        node.style["border-right"] = "6px solid " + changebarColor;
+      }
+  }
+
+  tidy_change_markup(node, depth) {
+    //console.log(`WALK: ${node.nodeName} ${depth}`);
+
+    let status = node.classList.contains("deltaxml-new") ? "new"
+      : (node.classList.contains("deltaxml-old") ? "old" : "undecided")
+
+    if (status == "undecided") {
+      for (const child of node.children) {
+        this.tidy_change_markup(child, depth+1)
+      }
+
+      let markOld = true
+      let markNew = true
+      for (const child of node.children) {
+        markOld = markOld && (child.childNodes.length == 0 || child.classList.contains("deltaxml-old"))
+        markNew = markNew && (child.childNodes.length == 0 || child.classList.contains("deltaxml-new"))
+        //console.log(`  ?? ${node.nodeName}: ${markOld}/${markNew}`)
+      }
+
+      if (markOld && markNew) {
+        status = "undecided";
+      } else if (markOld) {
+        status = "old";
+      } else if (markNew) {
+        status = "new";
+      } else {
+        status = "mixed";
+      }
+    }
+
+    if (status == "new") {
+      this.mark_change(node, "deltaxml-new", ADDED, "green")
+    } else if (status == "old") {
+      this.mark_change(node, "deltaxml-old", DELETED, "red")
+    }
+  }
+}
+
+// I'm not sure this is the cleanest approach...
+
+let dxmlview = new DXmlView();
+window.scroll_to = function(direction) {
+  if (direction == 'next') {
+    dxmlview.scroll_forward();
+  } else if (direction === 'prev') {
+    dxmlview.scroll_backward();
+  } else {
+    console.log("Unexpected scroll direction: ", direction);
+  }
+};
+
+window.view = function(doc) {
+  if (doc === "new") {
+    dxmlview.view_new();
+  } else if (doc === "old") {
+    dxmlview.view_old();
+  } else if (doc === "both") {
+    dxmlview.view_both();
+  } else if (doc === "only") {
+    dxmlview.view_both();
+    dxmlview.view_only();
+  } else {
+    console.log("Unexpected view doc: ", doc);
+  }
+};
+
+window.addEventListener('resize', (event) => {
+  dxmlview.find_visible_diffs();
+});
+
+dxmlview.view_both();
+dxmlview.tidy_change_markup(document.querySelector("body"), 0)
diff --git a/step-file/src/main/xml/specification.xml b/step-file/src/main/xml/specification.xml
index 66634b6b..1cad5374 100644
--- a/step-file/src/main/xml/specification.xml
+++ b/step-file/src/main/xml/specification.xml
@@ -6,12 +6,13 @@
                xmlns:xi="http://www.w3.org/2001/XInclude"
                xmlns:xlink="http://www.w3.org/1999/xlink"
                xml:id='step-file'
-               class="ed" role="step"
+               class="wd" role="step"
                version="5.0-extension w3c-xproc">
 <info>
 <title>XProc 3.1: file steps</title>
 <!-- defaults to date formatted <pubdate>2014-12-18</pubdate> -->
 <copyright><year>2018</year><year>2019</year><year>2020</year>
+<year>2021</year><year>2022</year><year>2023</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.1 Standard Step Library
 specifications</holder>
 </copyright>
@@ -62,8 +63,11 @@ for
   </para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 </legalnotice>
 </info>
diff --git a/step-ixml/src/main/xml/specification.xml b/step-ixml/src/main/xml/specification.xml
index bed290a1..70ada3ec 100644
--- a/step-ixml/src/main/xml/specification.xml
+++ b/step-ixml/src/main/xml/specification.xml
@@ -6,12 +6,13 @@
                xmlns:xi="http://www.w3.org/2001/XInclude"
                xmlns:xlink="http://www.w3.org/1999/xlink"
                xml:id='step-ixml'
-               class="ed" role="step"
+               class="wd" role="step"
                version="5.0-extension w3c-xproc">
 <info>
 <title>XProc 3.1: Invisible XML</title>
 <!-- defaults to date formatted <pubdate>2014-12-18</pubdate> -->
 <copyright><year>2021</year>
+<year>2022</year><year>2023</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.1 Standard Step Library
 specifications</holder>
 </copyright>
@@ -53,8 +54,11 @@ step for
   </para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 </legalnotice>
 </info>
diff --git a/step-mail/src/main/xml/specification.xml b/step-mail/src/main/xml/specification.xml
index acabf011..b9083cc5 100644
--- a/step-mail/src/main/xml/specification.xml
+++ b/step-mail/src/main/xml/specification.xml
@@ -5,12 +5,13 @@
                xmlns:p="http://www.w3.org/ns/xproc"
                xmlns:xi="http://www.w3.org/2001/XInclude"
                xmlns:xlink="http://www.w3.org/1999/xlink"
-               xml:id="step-mail" class="ed"
+               xml:id="step-mail" class="wd"
                role="step" version="5.0-extension w3c-xproc">
   <info>
     <title>XProc 3.1: mail steps</title>
     <!-- defaults to date formatted <pubdate>2014-12-18</pubdate> -->
 <copyright><year>2018</year><year>2019</year><year>2020</year>
+<year>2021</year><year>2022</year><year>2023</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.1 Standard Step Library
 specifications</holder>
 </copyright>
@@ -60,8 +61,11 @@ specifications</holder>
   </para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 </legalnotice>
   </info>
diff --git a/step-os/src/main/xml/specification.xml b/step-os/src/main/xml/specification.xml
index 95c2915e..39b6759c 100644
--- a/step-os/src/main/xml/specification.xml
+++ b/step-os/src/main/xml/specification.xml
@@ -6,12 +6,13 @@
                xmlns:xi="http://www.w3.org/2001/XInclude"
                xmlns:xlink="http://www.w3.org/1999/xlink"
                xml:id='step-os'
-               class="ed" role="step"
+               class="wd" role="step"
                version="5.0-extension w3c-xproc">
 <info>
 <title>XProc 3.1: operating system steps</title>
 <!-- defaults to date formatted <pubdate>2014-12-18</pubdate> -->
 <copyright><year>2018</year><year>2019</year><year>2020</year>
+<year>2021</year><year>2022</year><year>2023</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.1 Standard Step Library
 specifications</holder>
 </copyright>
@@ -63,8 +64,11 @@ for
   </para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 </legalnotice>
 </info>
diff --git a/step-paged-media/src/main/xml/specification.xml b/step-paged-media/src/main/xml/specification.xml
index 3a80aa7b..1ba0eab8 100644
--- a/step-paged-media/src/main/xml/specification.xml
+++ b/step-paged-media/src/main/xml/specification.xml
@@ -6,12 +6,13 @@
                xmlns:xi="http://www.w3.org/2001/XInclude"
                xmlns:xlink="http://www.w3.org/1999/xlink"
                xml:id='step-paged-media'
-               class="ed" role="step"
+               class="wd" role="step"
                version="5.0-extension w3c-xproc">
 <info>
 <title>XProc 3.1: paged media steps</title>
 <!-- defaults to date formatted <pubdate>2014-12-18</pubdate> -->
 <copyright><year>2018</year><year>2019</year><year>2020</year>
+<year>2021</year><year>2022</year><year>2023</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.1 Standard Step Library
 specifications</holder>
 </copyright>
@@ -67,8 +68,11 @@ steps for
   An XML Pipeline Language</link> published by the W3C.</para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 </legalnotice>
 </info>
diff --git a/step-run/src/main/xml/specification.xml b/step-run/src/main/xml/specification.xml
index c17b86ac..665e2cca 100644
--- a/step-run/src/main/xml/specification.xml
+++ b/step-run/src/main/xml/specification.xml
@@ -6,12 +6,12 @@
                xmlns:xi="http://www.w3.org/2001/XInclude"
                xmlns:xlink="http://www.w3.org/1999/xlink"
                xml:id='step-run'
-               class="ed" role="step"
+               class="wd" role="step"
                version="5.0-extension w3c-xproc">
 <info>
 <title>XProc 3.1: dynamic pipeline execution</title>
 <!-- defaults to date formatted <pubdate>2014-12-18</pubdate> -->
-<copyright><year>2018</year><year>2019</year><year>2020</year><year>2024</year>
+<copyright><year>2018</year><year>2019</year><year>2020</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.x Standard Step Library
 specifications</holder>
 </copyright>
@@ -62,8 +62,11 @@ step for
   </para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 </legalnotice>
 </info>
diff --git a/step-text/src/main/xml/specification.xml b/step-text/src/main/xml/specification.xml
index 4d49af24..9dd99643 100644
--- a/step-text/src/main/xml/specification.xml
+++ b/step-text/src/main/xml/specification.xml
@@ -2,12 +2,13 @@
 <specification xmlns="http://docbook.org/ns/docbook" xmlns:cs="http://www.w3.org/XML/XProc/2006/04/components#"
   xmlns:e="http://www.w3.org/1999/XSL/Spec/ElementSyntax" xmlns:p="http://www.w3.org/ns/xproc"
   xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:xlink="http://www.w3.org/1999/xlink"
-  xml:id="step-text" class="ed"
+  xml:id="step-text" class="wd"
   role="step" version="5.0-extension w3c-xproc">
   <info>
     <title>XProc 3.1: text steps</title>
     <!-- defaults to date formatted <pubdate>2014-12-18</pubdate> -->
 <copyright><year>2018</year><year>2019</year><year>2020</year>
+<year>2021</year><year>2022</year><year>2023</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.1 Standard Step Library
 specifications</holder>
 </copyright>
@@ -56,8 +57,11 @@ specifications</holder>
   </para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 
 </legalnotice>
diff --git a/step-validation/src/main/xml/specification.xml b/step-validation/src/main/xml/specification.xml
index fc17291d..7d2e2c1c 100644
--- a/step-validation/src/main/xml/specification.xml
+++ b/step-validation/src/main/xml/specification.xml
@@ -7,12 +7,13 @@
                xmlns:xi="http://www.w3.org/2001/XInclude"
                xmlns:xlink="http://www.w3.org/1999/xlink"
                xml:id='step-validation'
-               class="ed" role="step"
+               class="wd" role="step"
                version="5.0-extension w3c-xproc">
 <info>
 <title>XProc 3.1: validation steps</title>
 <!-- defaults to date formatted <pubdate>2014-12-18</pubdate> -->
 <copyright><year>2018</year><year>2019</year><year>2020</year>
+<year>2021</year><year>2022</year><year>2023</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.1 Standard Step Library
 specifications</holder>
 </copyright>
@@ -73,8 +74,11 @@ step for
   An XML Pipeline Language</link> published by the W3C.</para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 </legalnotice>
 </info>
diff --git a/steps/src/main/xml/specification.xml b/steps/src/main/xml/specification.xml
index b67061a7..db58b99d 100644
--- a/steps/src/main/xml/specification.xml
+++ b/steps/src/main/xml/specification.xml
@@ -6,7 +6,7 @@
                xmlns:xi="http://www.w3.org/2001/XInclude"
                xmlns:xlink="http://www.w3.org/1999/xlink"
                xml:id='steps'
-               class="ed"
+               class="wd"
                version="5.0-extension w3c-xproc">
 <info>
 <title>XProc 3.1: Standard Step Library</title>
@@ -15,7 +15,7 @@
 <bibliomisc role="final-uri">https://spec.xproc.org/3.0/steps/</bibliomisc>
 -->
 <copyright><year>2018</year><year>2019</year><year>2020</year><year>2021</year><year>2022</year>
-<year>2023</year><year>2024</year>
+<year>2023</year><year>2024</year><year>2025</year>
 <holder>the Contributors to the XProc 3.1 Standard Step Library
 specifications</holder>
 </copyright>
@@ -69,8 +69,11 @@ specifications</holder>
   </para>
 
 <note role="editorial">
+<para>This draft is a “last call” draft. This version is stable and will not be updated.</para>
+<!--
 <para>This draft is the “editor’s working draft” and may continue to evolve.
 </para>
+-->
 </note>
 
 <para>This document is derived from
@@ -291,6 +294,21 @@ PSVI annotations.</para>
 
 <itemizedlist>
 <listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/659">issue 659</link>
+by updating the <tag>p:cast-content-type</tag> step. Added the <tag>p:encode</tag> step.
+This is a small backwards incompatibility because it means that you cannot use
+<tag>p:cast-content</tag> type to change the content type of a <tag>c:data</tag> element from
+<code>application/xml</code> to, for example, <code>application/foo+xml</code>. That seems
+like an unlikely scenario because XProc controls the semantics of <tag>c:data</tag>
+documents.</para>
+</listitem>
+<listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/642">issue 642</link>
+by removing the distinction between “has no value” and “the empty sequence” in the
+<tag>p:xslt</tag> step. This means it is no longer possible to specify a single document
+on the <port>source</port> port and have the global context item be the empty sequence.</para>
+</listitem>
+<listitem>
 <para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/549">issue 549</link>
 by making the <port>result</port> output port on <tag>p:compare</tag> primary.</para>
 <para>Although this change is technically backwards incompatible, all known implementations of
@@ -312,6 +330,48 @@ to recognize the incorrect value, perhaps with a warning.
   
 <itemizedlist>
 <listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/668">issue 668</link>
+by clarifying explicitly how the Unicode byte order mark is processed.
+</para>
+</listitem>
+<listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/656">issue 656</link>
+by adding an <option>attributes</option> option to <tag>p:pack</tag>, <tag>p:wrap</tag>, and
+<tag>p:wrap-sequence</tag>.
+</para>
+</listitem>
+<listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/647">issue 647</link>
+by allowing the value of the <option>duration</option> option on <tag>p:sleep</tag> to be 
+either a number of seconds or an <type>xs:dayTimeDuration</type>.
+</para>
+</listitem>
+<listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/644">issue 644</link>
+by allowing <tag>p:filter</tag> to return non-node results.
+</para>
+</listitem>
+<listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/635">issue 635</link>
+by clarifying how a text document can be produced from the <tag>p:filter</tag> step.
+</para>
+</listitem>
+<listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/623">issue 623</link>
+by clarifying the semantics of <tag>p:error</tag>.
+</para>
+</listitem>
+<listitem>
+<para>Added a description of <tag>c:parameter-set</tag> documents.</para>
+</listitem>
+<listitem>
+<para>Added the <tag>p:message</tag> step.
+</para>
+</listitem>
+<listitem>
+<para>Several error codes were added.</para>
+</listitem>
+<listitem>
 <para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/587">issue 587</link>
 by adding a <option>parameters</option> option to the <tag>p:uuid</tag> step.
 </para>
@@ -336,6 +396,28 @@ allowing text documents on the <port>result</port> port.
   
 <itemizedlist>
 <listitem>
+<para>Added a normative reference to RFC 8259 for the JSON format.</para>
+</listitem>
+<listitem>
+<para>Clarified the relationship between the <tag>p:text-sort</tag> step and the
+<tag>xsl:sort</tag> element.</para>
+</listitem>
+<listitem>
+<para>Made editorial improvements to the description of <tag>p:http-request</tag> and
+<tag>p:load</tag>.
+</para>
+</listitem>
+<listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/678">issue 678</link>
+by describing the <tag class="attribute">comment</tag> attribue in the archive manifest.
+</para>
+</listitem>
+<listitem>
+<para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/639">issue 639</link>
+by removing the superflous mention of PSVI annotations in the <tag>p:split-sequence</tag> step.
+</para>
+</listitem>
+<listitem>
 <para>Resolved <link xlink:href="https://github.com/xproc/3.0-steps/issues/580">issue 580</link>
 by clarifying what standards apply to the <option>lang</option> option on <tag>p:text-sort</tag>.
 </para>