diff --git a/milli/src/update/new/document_change.rs b/milli/src/update/new/document_change.rs
index 9076f32db..b4eb4d1d2 100644
--- a/milli/src/update/new/document_change.rs
+++ b/milli/src/update/new/document_change.rs
@@ -2,7 +2,7 @@ use heed::RoTxn;
 use obkv::KvReader;
 
 use crate::update::new::KvReaderFieldId;
-use crate::{DocumentId, FieldId, Index};
+use crate::{DocumentId, FieldId, Index, Result};
 
 pub enum DocumentChange {
     Deletion(Deletion),
@@ -52,8 +52,12 @@ impl Deletion {
         self.docid
     }
 
-    pub fn current(&self, rtxn: &RoTxn, index: &Index) -> &KvReader<FieldId> {
-        unimplemented!()
+    pub fn current<'a>(
+        &self,
+        rtxn: &'a RoTxn,
+        index: &'a Index,
+    ) -> Result<Option<&'a KvReader<FieldId>>> {
+        index.documents.get(rtxn, &self.docid).map_err(crate::Error::from)
     }
 }
 
@@ -67,7 +71,7 @@ impl Insertion {
     }
 
     pub fn new(&self) -> &KvReader<FieldId> {
-        unimplemented!()
+        self.new.as_ref()
     }
 }
 
@@ -85,11 +89,15 @@ impl Update {
         self.docid
     }
 
-    pub fn current(&self, rtxn: &RoTxn, index: &Index) -> &KvReader<FieldId> {
-        unimplemented!()
+    pub fn current<'a>(
+        &self,
+        rtxn: &'a RoTxn,
+        index: &'a Index,
+    ) -> Result<Option<&'a KvReader<FieldId>>> {
+        index.documents.get(rtxn, &self.docid).map_err(crate::Error::from)
     }
 
     pub fn new(&self) -> &KvReader<FieldId> {
-        unimplemented!()
+        self.new.as_ref()
     }
 }
diff --git a/milli/src/update/new/extract/extract_word_docids.rs b/milli/src/update/new/extract/extract_word_docids.rs
index 1f52ee086..55f13f221 100644
--- a/milli/src/update/new/extract/extract_word_docids.rs
+++ b/milli/src/update/new/extract/extract_word_docids.rs
@@ -115,7 +115,7 @@ impl SearchableExtractor for WordDocidsExtractor {
                     cached_sorter.insert_del_u32(word.as_bytes(), inner.docid()).unwrap();
                 };
                 document_tokenizer.tokenize_document(
-                    inner.current(rtxn, index),
+                    inner.current(rtxn, index)?.unwrap(),
                     fields_ids_map,
                     &mut token_fn,
                 )?;
@@ -125,7 +125,7 @@ impl SearchableExtractor for WordDocidsExtractor {
                     cached_sorter.insert_del_u32(word.as_bytes(), inner.docid()).unwrap();
                 };
                 document_tokenizer.tokenize_document(
-                    inner.current(rtxn, index),
+                    inner.current(rtxn, index)?.unwrap(),
                     fields_ids_map,
                     &mut token_fn,
                 )?;