diff --git a/migrations/Version20260526175316.php b/migrations/Version20260526175316.php
new file mode 100644
index 0000000000..b87d11d32c
--- /dev/null
+++ b/migrations/Version20260526175316.php
@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260526175316 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'adds last_boosted_at with default value to entry, entry_comment, post and post_comment';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE entry ADD last_boosted_at TIMESTAMP(0) WITH TIME ZONE NOT NULL DEFAULT to_timestamp(0)::date');
+        $this->addSql('CREATE INDEX entry_last_boosted_at_idx ON entry (last_boosted_at)');
+        $this->addSql('ALTER TABLE entry_comment ADD last_boosted_at TIMESTAMP(0) WITH TIME ZONE NOT NULL DEFAULT to_timestamp(0)::date');
+        $this->addSql('CREATE INDEX entry_comment_last_boosted_at_idx ON entry_comment (last_boosted_at)');
+        $this->addSql('ALTER TABLE post ADD last_boosted_at TIMESTAMP(0) WITH TIME ZONE NOT NULL DEFAULT to_timestamp(0)::date');
+        $this->addSql('CREATE INDEX post_last_boosted_at_idx ON post (last_boosted_at)');
+        $this->addSql('ALTER TABLE post_comment ADD last_boosted_at TIMESTAMP(0) WITH TIME ZONE NOT NULL DEFAULT to_timestamp(0)::date');
+        $this->addSql('CREATE INDEX post_comment_last_boosted_at_idx ON post_comment (last_boosted_at)');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('DROP INDEX entry_last_boosted_at_idx');
+        $this->addSql('ALTER TABLE entry DROP last_boosted_at');
+        $this->addSql('DROP INDEX entry_comment_last_boosted_at_idx');
+        $this->addSql('ALTER TABLE entry_comment DROP last_boosted_at');
+        $this->addSql('DROP INDEX post_last_boosted_at_idx');
+        $this->addSql('ALTER TABLE post DROP last_boosted_at');
+        $this->addSql('DROP INDEX post_comment_last_boosted_at_idx');
+        $this->addSql('ALTER TABLE post_comment DROP last_boosted_at');
+    }
+
+    public function postUp(Schema $schema): void
+    {
+        $this->connection->transactional(function (): void {
+            $sqlTpl = 'UPDATE $e SET last_boosted_at = greatest((SELECT $e_vote.created_at FROM $e_vote WHERE $e_vote.$fk = $e.id ORDER BY $e_vote.created_at DESC LIMIT 1), created_at);';
+            $this->connection->executeStatement(str_replace('$e', 'entry', str_replace('$fk', 'entry_id', $sqlTpl)));
+            $this->connection->executeStatement(str_replace('$e', 'entry_comment', str_replace('$fk', 'comment_id', $sqlTpl)));
+            $this->connection->executeStatement(str_replace('$e', 'post', str_replace('$fk', 'post_id', $sqlTpl)));
+            $this->connection->executeStatement(str_replace('$e', 'post_comment', str_replace('$fk', 'comment_id', $sqlTpl)));
+        });
+    }
+}
diff --git a/psalm.xml b/psalm.xml
new file mode 100644
index 0000000000..c7e8774aa0
--- /dev/null
+++ b/psalm.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<psalm
+    errorLevel="4"
+    resolveFromConfigFile="true"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="https://getpsalm.org/schema/config"
+    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+
+    findUnusedBaselineEntry="true"
+    findUnusedCode="false"
+    findUnusedVariablesAndParams="false"
+>
+    <projectFiles>
+        <directory name="src"/>
+        <ignoreFiles>
+            <directory name="vendor"/>
+        </ignoreFiles>
+    </projectFiles>
+
+    <issueHandlers>
+        <PossiblyUnusedReturnValue errorLevel="suppress" />
+        <!-- <MissingAbstractPureAnnotation errorLevel="suppress" /> -->
+    </issueHandlers>
+</psalm>
diff --git a/src/Entity/Contracts/VotableInterface.php b/src/Entity/Contracts/VotableInterface.php
index 42824bdb30..c5cd379911 100644
--- a/src/Entity/Contracts/VotableInterface.php
+++ b/src/Entity/Contracts/VotableInterface.php
@@ -38,4 +38,9 @@ public function countVotes(): int;
     public function getUserChoice(User $user): int;
 
     public function getUserVote(User $user): ?Vote;
+
+    /**
+     * @psalm-external-mutation-free
+     */
+    public function updateLastBoostDate(): self;
 }
diff --git a/src/Entity/Entry.php b/src/Entity/Entry.php
index accef09f89..ed041d956f 100644
--- a/src/Entity/Entry.php
+++ b/src/Entity/Entry.php
@@ -43,6 +43,7 @@
 #[Index(columns: ['comment_count'], name: 'entry_comment_count_idx')]
 #[Index(columns: ['created_at'], name: 'entry_created_at_idx')]
 #[Index(columns: ['last_active'], name: 'entry_last_active_at_idx')]
+#[Index(columns: ['last_boosted_at'], name: 'entry_last_boosted_at_idx')]
 #[Index(columns: ['body_ts'], name: 'entry_body_ts_idx')]
 #[Index(columns: ['title_ts'], name: 'entry_title_ts_idx')]
 class Entry implements VotableInterface, CommentInterface, DomainInterface, VisibilityInterface, RankingInterface, ReportInterface, FavouriteInterface, ActivityPubActivityInterface, ContentVisibilityInterface
@@ -173,8 +174,10 @@ public function __construct(
         $user->addEntry($this);
 
         $this->createdAtTraitConstruct();
-
         $this->updateLastActive();
+
+        /* @psalm-suppress UninitializedProperty */
+        $this->lastBoostedAt = $this->createdAt;
     }
 
     public function updateLastActive(): void
diff --git a/src/Entity/EntryComment.php b/src/Entity/EntryComment.php
index c642b1137b..471030a1bc 100644
--- a/src/Entity/EntryComment.php
+++ b/src/Entity/EntryComment.php
@@ -37,6 +37,7 @@
 #[Index(columns: ['up_votes'], name: 'entry_comment_up_votes_idx')]
 #[Index(columns: ['last_active'], name: 'entry_comment_last_active_at_idx')]
 #[Index(columns: ['created_at'], name: 'entry_comment_created_at_idx')]
+#[Index(columns: ['last_boosted_at'], name: 'entry_comment_last_boosted_at_idx')]
 #[Index(columns: ['body_ts'], name: 'entry_comment_body_ts_idx')]
 class EntryComment implements VotableInterface, VisibilityInterface, ReportInterface, FavouriteInterface, ActivityPubActivityInterface
 {
@@ -127,6 +128,9 @@ public function __construct(
 
         $this->createdAtTraitConstruct();
         $this->updateLastActive();
+
+        /* @psalm-suppress UninitializedProperty */
+        $this->lastBoostedAt = $this->createdAt;
     }
 
     public function updateLastActive(): void
diff --git a/src/Entity/Post.php b/src/Entity/Post.php
index c7e1f00693..3d813d6618 100644
--- a/src/Entity/Post.php
+++ b/src/Entity/Post.php
@@ -40,6 +40,7 @@
 #[Index(columns: ['comment_count'], name: 'post_comment_count_idx')]
 #[Index(columns: ['created_at'], name: 'post_created_at_idx')]
 #[Index(columns: ['last_active'], name: 'post_last_active_at_idx')]
+#[Index(columns: ['last_boosted_at'], name: 'post_last_boosted_at_idx')]
 #[Index(columns: ['body_ts'], name: 'post_body_ts_idx')]
 class Post implements VotableInterface, CommentInterface, VisibilityInterface, RankingInterface, ReportInterface, FavouriteInterface, ActivityPubActivityInterface
 {
@@ -127,6 +128,8 @@ public function __construct(
 
         $this->createdAtTraitConstruct();
         $this->updateLastActive();
+
+        $this->lastBoostedAt = $this->createdAt;
     }
 
     public function updateLastActive(): void
diff --git a/src/Entity/PostComment.php b/src/Entity/PostComment.php
index 2283beef7d..16c87a562c 100644
--- a/src/Entity/PostComment.php
+++ b/src/Entity/PostComment.php
@@ -37,6 +37,7 @@
 #[Index(columns: ['up_votes'], name: 'post_comment_up_votes_idx')]
 #[Index(columns: ['last_active'], name: 'post_comment_last_active_at_idx')]
 #[Index(columns: ['created_at'], name: 'post_comment_created_at_idx')]
+#[Index(columns: ['last_boosted_at'], name: 'post_comment_last_boosted_at_idx')]
 #[Index(columns: ['body_ts'], name: 'post_comment_body_ts_idx')]
 class PostComment implements VotableInterface, VisibilityInterface, ReportInterface, FavouriteInterface, ActivityPubActivityInterface
 {
@@ -123,6 +124,8 @@ public function __construct(string $body, ?Post $post, User $user, ?PostComment
 
         $this->createdAtTraitConstruct();
         $this->updateLastActive();
+
+        $this->lastBoostedAt = $this->createdAt;
     }
 
     public function updateLastActive(): void
diff --git a/src/Entity/Traits/VotableTrait.php b/src/Entity/Traits/VotableTrait.php
index f553604dbc..a51222cc3a 100644
--- a/src/Entity/Traits/VotableTrait.php
+++ b/src/Entity/Traits/VotableTrait.php
@@ -28,6 +28,9 @@ trait VotableTrait
     #[Column(type: 'integer', nullable: true)]
     public ?int $apShareCount = null;
 
+    #[Column(type: 'datetimetz_immutable', nullable: false)]
+    public ?\DateTimeImmutable $lastBoostedAt;
+
     public function countUpVotes(): int
     {
         return $this->apShareCount ?? $this->upVotes;
@@ -66,6 +69,13 @@ public function updateVoteCounts(): self
         return $this;
     }
 
+    public function updateLastBoostDate(): self
+    {
+        $this->lastBoostedAt = new \DateTimeImmutable();
+
+        return $this;
+    }
+
     public function getUpVotes(): Collection
     {
         $this->votes->get(-1);
diff --git a/src/Repository/ContentRepository.php b/src/Repository/ContentRepository.php
index a3d9703c4c..19bf7fa3a3 100644
--- a/src/Repository/ContentRepository.php
+++ b/src/Repository/ContentRepository.php
@@ -461,17 +461,17 @@ private function getQueryAndParameters(Criteria $criteria, bool $addCursor): arr
         // only join domain if we are explicitly looking at one
         $domainJoin = $criteria->domain ? 'LEFT JOIN domain d ON d.id = c.domain_id' : '';
 
-        $entrySql = "SELECT c.id, 'entry' as type, c.type as content_type, c.created_at, c.ranking, c.score, c.comment_count, c.sticky, c.last_active, c.user_id FROM entry c
+        $entrySql = "SELECT c.id, 'entry' as type, c.type as content_type, c.created_at, c.last_boosted_at, c.ranking, c.score, c.comment_count, c.sticky, c.last_active, c.user_id FROM entry c
             LEFT JOIN magazine m ON c.magazine_id = m.id
             $domainJoin
             $entryWhere";
-        $postSql = "SELECT c.id, 'post' as type, 'microblog' as content_type, c.created_at, c.ranking, c.score, c.comment_count, c.sticky, c.last_active, c.user_id FROM post c
+        $postSql = "SELECT c.id, 'post' as type, 'microblog' as content_type, c.created_at, c.last_boosted_at, c.ranking, c.score, c.comment_count, c.sticky, c.last_active, c.user_id FROM post c
             LEFT JOIN magazine m ON c.magazine_id = m.id
             $postWhere";
-        $entryCommentSql = "SELECT c.id, 'entry_comment' as type, 'microblog' as content_type, c.created_at, 0 as ranking, 0 as score, 0 as comment_count, false as sticky, c.last_active, c.user_id FROM entry_comment c
+        $entryCommentSql = "SELECT c.id, 'entry_comment' as type, 'microblog' as content_type, c.created_at, c.last_boosted_at, 0 as ranking, 0 as score, 0 as comment_count, false as sticky, c.last_active, c.user_id FROM entry_comment c
             LEFT JOIN magazine m ON c.magazine_id = m.id
             $entryCommentWhere";
-        $postCommentSql = "SELECT c.id, 'post_comment' as type, 'microblog' as content_type, c.created_at, 0 as ranking, 0 as score, 0 as comment_count, false as sticky, c.last_active, c.user_id FROM post_comment c
+        $postCommentSql = "SELECT c.id, 'post_comment' as type, 'microblog' as content_type, c.created_at, c.last_boosted_at, 0 as ranking, 0 as score, 0 as comment_count, false as sticky, c.last_active, c.user_id FROM post_comment c
             LEFT JOIN magazine m ON c.magazine_id = m.id
             $postCommentWhere";
 
@@ -523,7 +523,7 @@ private function getCursorFieldFromCriteria(Criteria $criteria): string
             Criteria::SORT_HOT => 'ranking',
             Criteria::SORT_COMMENTED => 'commentCount',
             Criteria::SORT_ACTIVE => 'lastActive',
-            default => 'createdAt',
+            default => $criteria->includeBoosts ? 'lastBoostedAt' : 'createdAt',
         };
     }
 
@@ -534,8 +534,8 @@ private function getCursorWhereFromCriteria(Criteria $criteria): string
             Criteria::SORT_HOT => 'c.ranking < :cursor',
             Criteria::SORT_COMMENTED => 'c.comment_count < :cursor',
             Criteria::SORT_ACTIVE => 'c.last_active < :cursor',
-            Criteria::SORT_OLD => 'c.created_at > :cursor',
-            default => 'c.created_at < :cursor',
+            Criteria::SORT_OLD => $criteria->includeBoosts ? 'c.last_boosted_at > :cursor' : 'c.created_at > :cursor',
+            default => $criteria->includeBoosts ? 'c.last_boosted_at < :cursor' : 'c.created_at < :cursor',
         };
     }
 
@@ -546,8 +546,8 @@ private function getCursorWhereInvertedFromCriteria(Criteria $criteria): string
             Criteria::SORT_HOT => 'c.ranking > :cursor',
             Criteria::SORT_COMMENTED => 'c.comment_count > :cursor',
             Criteria::SORT_ACTIVE => 'c.last_active > :cursor',
-            Criteria::SORT_OLD => 'c.created_at < :cursor',
-            default => 'c.created_at >= :cursor',
+            Criteria::SORT_OLD => $criteria->includeBoosts ? 'c.last_boosted_at < :cursor' : 'c.created_at < :cursor',
+            default => $criteria->includeBoosts ? 'c.last_boosted_at >= :cursor' : 'c.created_at >= :cursor',
         };
     }
 
@@ -608,11 +608,11 @@ private function getOrderings(Criteria $criteria): array
 
         switch ($criteria->sortOption) {
             case Criteria::SORT_OLD:
-                $orderings[] = 'created_at ASC';
+                $orderings[] = $criteria->includeBoosts ? 'last_boosted_at ASC' : 'created_at ASC';
                 break;
             case Criteria::SORT_NEW:
             default:
-                $orderings[] = 'created_at DESC';
+                $orderings[] = $criteria->includeBoosts ? 'last_boosted_at DESC' : 'created_at DESC';
         }
 
         return $orderings;
diff --git a/src/Service/VoteManager.php b/src/Service/VoteManager.php
index 0be618a201..36f26eb9d2 100644
--- a/src/Service/VoteManager.php
+++ b/src/Service/VoteManager.php
@@ -64,6 +64,7 @@ public function vote(int $choice, VotableInterface $votable, User $user, $rateLi
 
                 if (VotableInterface::VOTE_UP === $choice && null !== $votable->apShareCount) {
                     ++$votable->apShareCount;
+                    $votable->updateLastBoostDate();
                 } elseif (VotableInterface::VOTE_DOWN === $choice && null !== $votable->apDislikeCount) {
                     ++$votable->apDislikeCount;
                 }
@@ -132,6 +133,7 @@ public function upvote(VotableInterface $votable, User $user): Vote
 
         $votable->updateVoteCounts();
 
+        $votable->updateLastBoostDate();
         $votable->lastActive = new \DateTime();
 
         if ($votable instanceof PostComment) {