diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0526ab7..b62801e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Development version
 
+# Version 0.5.3 - 2020-08-05
+
 * Consider the date for event caches during comparison.
 
 # Version 0.5.2 - 2020-07-08
@@ -31,7 +33,7 @@
 # Version 0.4.0 - 2020-05-22
 
 * Add fallback methods for opening an URL in the web browser.
-* View logs as plaintext instead of HTML. This should finally provide correct linebreaks in the text.
+* View logs as plaintext instead of HTML. This should finally provide correct line breaks in the text.
 * Allow sending modified logs.
 * Add support for Travis CI for automated `master` builds.
 * Fix log type for webcam caches.
@@ -84,7 +86,7 @@
 # Version 0.2.43 - 2017-05-02
 
 * Perform some refactoring.
-* Store information about HTTP responses witout code 200.
+* Store information about HTTP responses without code 200.
 * Handle OKAPI error responses for the username and cache getter.
 * Switch OKAPI responses to JSON.
 * Split OKAPI result caching and cache lookup.
@@ -174,8 +176,8 @@
 
 # Version 0.2z - 2016-02-25
 
-* Only enable undo menu if undo action are available.
-* Allow restarting the program to update used heap size.
+* Only enable undo menu if undo actions are available.
+* Allow restarting the program to update the used heap size.
 * Add OC username to settings.
 
 # Version 0.2y - 2016-02-24
@@ -192,7 +194,7 @@
 # Version 0.2w - 2016-02-21
 
 * Move filters to main menu.
-* Allow to set cache coordinates as location using a right click.
+* Allow setting cache coordinates as location using a right click.
 * Display number of selected caches.
 * Switch to HTTPS.
 * Add undo support.
@@ -228,7 +230,7 @@
 * Unify found log definition.
 * Add cache name filter.
 * Ignore caches ignored on OC.
-* Use multithreaded filtering.
+* Use multi-threaded filtering.
 
 # Version 0.2q - 2016-01-28
 
@@ -240,7 +242,7 @@
 
 # Version 0.2o - 2016-01-26
 
-* Bugfix for multithreading.
+* Bugfix for multi-threading.
 * Allow reduced GPX files.
 
 # Version 0.2n - 2016-01-19
diff --git a/build.gradle b/build.gradle
index 1f87ecb..692780c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,12 +1,12 @@
 plugins {
     // Apply the versions plugin to check for module dependency updates.
-    id 'com.github.ben-manes.versions' version '0.28.0'
+    id 'com.github.ben-manes.versions' version '0.29.0'
 
     // Apply the Google Java formatter plugin for automatically reformatting files.
     id 'com.github.sherter.google-java-format' version '0.9'
 
     // Create runtime images.
-    id 'org.beryx.runtime' version '1.10.0'
+    id 'org.beryx.runtime' version '1.11.2'
 }
 
 // Apply the java plugin to add support for Java.
@@ -40,7 +40,7 @@ repositories {
 
 dependencies {
     implementation group: 'commons-codec', name: 'commons-codec', version: '1.14'
-    implementation group: 'org.apache.commons', name: 'commons-text', version: '1.8'
+    implementation group: 'org.apache.commons', name: 'commons-text', version: '1.9'
     implementation group: 'com.github.scribejava', name: 'scribejava-core', version: '6.9.0'
     implementation group: 'org.openstreetmap.jmapviewer', name: 'jmapviewer', version: '2.14'
     implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.6'
@@ -58,7 +58,7 @@ project.ext.ocOkapiPropertiesFile = projectDir.getPath() + "${File.separator}oc_
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
 
-version = '0.5.2'
+version = '0.5.3'
 
 wrapper {
     gradleVersion = '6.5.1'
@@ -124,11 +124,13 @@ clean.doFirst {
 
 jar {
     archiveBaseName = 'cm'
-    if (project.isTravis()) version = 'ci'
+    if (project.isTravis()) {
+        archiveVersion = 'ci'
+    }
     manifest {
         attributes 'Main-Class': mainClassName
     }
-    duplicatesStrategy = DuplicatesStrategy.INCLUDE // allow duplicates
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE  // Allow duplicates.
 
     from {
         configurations.compileClasspath.collect {
@@ -183,7 +185,7 @@ task jpackageImageZip(type: Zip) {
     description = 'Bundles the jpackage image as a ZIP file.'
     from "${buildDir}/jpackage/cmanager"
     include '**/*'
-    archiveName "cmanager-${version}_${project.getSystemString()}.zip"
+    archiveName "cmanager-${archiveVersion}_${project.getSystemString()}.zip"
     destinationDir file("${buildDir}/jpackage/")
 }
 jpackageImageZip.dependsOn jpackageImage
diff --git a/src/main/java/cmanager/util/DateTimeUtil.java b/src/main/java/cmanager/util/DateTimeUtil.java
index 034dd06..d6ed92f 100644
--- a/src/main/java/cmanager/util/DateTimeUtil.java
+++ b/src/main/java/cmanager/util/DateTimeUtil.java
@@ -39,6 +39,34 @@ public static boolean isTooOldWithMonths(final File file, int maximumAgeInMonths
         return DateTimeUtil.isTooOldWithMonths(fileModifiedDate, maximumAgeInMonths);
     }
 
+    /**
+     * Check if the given datetime is older than the given number of days.
+     *
+     * @param oldTime The datetime to check the invalidation for.
+     * @param maximumAgeInDays The maximum age in days allowed.
+     * @return Whether the given datetime is too old.
+     */
+    public static boolean isTooOldWithDays(final LocalDateTime oldTime, int maximumAgeInDays) {
+        final LocalDateTime invalidationTime = oldTime.plusDays(maximumAgeInDays);
+        final LocalDateTime now = LocalDateTime.now();
+
+        return invalidationTime.isBefore(now);
+    }
+
+    /**
+     * Check if the given file is older than the given number of days.
+     *
+     * @param file The file to check the modification time for.
+     * @param maximumAgeInDays The maximum age in days allowed.
+     * @return Whether the file is too old.
+     */
+    public static boolean isTooOldWithDays(final File file, int maximumAgeInDays) {
+        final LocalDateTime fileModifiedDate =
+                LocalDateTime.ofInstant(
+                        Instant.ofEpochMilli(file.lastModified()), ZoneId.systemDefault());
+        return DateTimeUtil.isTooOldWithDays(fileModifiedDate, maximumAgeInDays);
+    }
+
     /**
      * Check if the given file is too old.
      *