diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs
index 4a755aa8..9bbb967b 100644
--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -31,5 +31,5 @@
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
-[assembly: AssemblyVersion("0.7")]
-[assembly: AssemblyFileVersion("0.7.0.0")]
+[assembly: AssemblyVersion("0.8")]
+[assembly: AssemblyFileVersion("0.8.0.0")]
diff --git a/RELEASING.md b/RELEASING.md
index 2a9032ef..b1ad50ad 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -4,6 +4,8 @@
 2. In that branch:
    * Check `todo.txt` for anything important, or anything already completed
    * Bump the version numbers
+     * `Properties/AssemblyInfo.cs`
+     * `solus/Properties/AssemblyInfo.cs`
    * Bump the dependency version in `soluscli.nuspec`
    * Check files for license notices
    * Check any other code formatting or static analysis
diff --git a/solus/Properties/AssemblyInfo.cs b/solus/Properties/AssemblyInfo.cs
index 5a9972af..4f703f5f 100644
--- a/solus/Properties/AssemblyInfo.cs
+++ b/solus/Properties/AssemblyInfo.cs
@@ -31,5 +31,5 @@
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
-[assembly: AssemblyVersion("0.7")]
-[assembly: AssemblyFileVersion("0.7.0.0")]
+[assembly: AssemblyVersion("0.8")]
+[assembly: AssemblyFileVersion("0.8.0.0")]
diff --git a/solus/soluscli.nuspec b/solus/soluscli.nuspec
index b415217c..f52bffc2 100644
--- a/solus/soluscli.nuspec
+++ b/solus/soluscli.nuspec
@@ -32,12 +32,12 @@ USA
         <!-- TODO: <icon>images/logo.png</icon> -->
         <requireLicenseAcceptance>false</requireLicenseAcceptance>
         <description>Solus command-line interface</description>
-        <releaseNotes>Expression and function interrogation.</releaseNotes>
+        <releaseNotes>Allow interrogation to return null for "Not available". Minor memory usage improvements.</releaseNotes>
         <copyright>Copyright 2021 izrik and Metaphysics Industries, Inc.</copyright>
         <tags>math numeric algebra</tags>
         <dependencies>
             <group>
-                <dependency id="MetaphysicsIndustries.Solus" version="0.7.0" />
+                <dependency id="MetaphysicsIndustries.Solus" version="0.8.0" />
             </group>
             <group targetFramework=".NETFramework4.0" />
         </dependencies>
diff --git a/todo.txt b/todo.txt
index d0c4188e..a755edc9 100644
--- a/todo.txt
+++ b/todo.txt
@@ -12,6 +12,9 @@ bug: when assigning a variable, any variables in its expression are
         because y was already defined when w was defined. That is not true for
         x, which remains exactly how it was defined. This discrepancy would
         likely be a surprise to the user.
+    Basically, this is caused by calling PreliminaryEval on inputs. Probably
+        we should call PreliminaryEval and just pass it an empty environment.
+        That way, it wouldn't automatically resolve variable references.
 unify the namespace
     so that `vars` and `delete` and friends all work consistently and
     predictably
@@ -27,6 +30,8 @@ a type system to support the above
 maybe a "property system" in addition to, or in place of, said type system
 markers of the type of the result of an expression (or return value of a
     function), based on inputs
+figure out some solution to the problem of values being boxed and unboxed so
+    much. It's causing lots of allocations and is just slow in general.
 simple sets and intervals as IMathObject
 more complicated expression-based sets
 complex numbers