diff --git a/Cargo.lock b/Cargo.lock
index 2654c8a8d..4878b284d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1246,7 +1246,7 @@ version = "0.0.111"
 dependencies = [
  "bitcoin",
  "brk_error",
- "byteview 0.6.1",
+ "byteview 0.9.1",
  "derive_deref",
  "itoa",
  "jiff",
@@ -2073,8 +2073,6 @@ checksum = "1d674e81391d1e1ab681a28d99df07927c6d4aa5b027d7da16ba32d1d21ecd99"
 [[package]]
 name = "fjall"
 version = "3.0.0-rc.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c91b735d557d6636f69dedbea4d7a465e6095a00409b2b146a64cf4c136ab833"
 dependencies = [
  "byteorder-lite",
  "byteview 0.9.1",
@@ -2973,8 +2971,6 @@ dependencies = [
 [[package]]
 name = "lsm-tree"
 version = "3.0.0-rc.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4e32220e039b7e8e1474a5206eb32c002c9d18fe0770d87c693e00b782f15ff"
 dependencies = [
  "byteorder-lite",
  "byteview 0.9.1",
diff --git a/Cargo.toml b/Cargo.toml
index 2afc142c1..11e460309 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -57,13 +57,14 @@ brk_store = { version = "0.0.111", path = "crates/brk_store" }
 brk_types = { version = "0.0.111", path = "crates/brk_types" }
 brk_traversable = { version = "0.0.111", path = "crates/brk_traversable", features = ["pco", "derive"] }
 brk_traversable_derive = { version = "0.0.111", path = "crates/brk_traversable_derive" }
-byteview = "=0.6.1"
-# byteview = "0.9.1"
+# byteview = "=0.6.1"
+byteview = "0.9.1"
 color-eyre = "0.6.5"
 derive_deref = "1.1.1"
 fjall2 = { version = "2.11.8", package = "brk_fjall" }
-# fjall2 = { path = "../fjall2", package = "brk_fjall" }
-fjall3 = { version = "3.0.0-rc.5", package = "fjall" }
+# fjall3 = { version = "3.0.0-rc.5", package = "fjall" }
+fjall3 = { path = "../fjall3", package = "fjall" }
+# fjall3 = { git = "https://github.com/fjall-rs/fjall.git", rev = "434979ef59d8fd2b36b91e6ff759a36d19a397ee", package = "fjall" }
 jiff = "0.2.16"
 log = "0.4.29"
 minreq = { version = "2.14.1", features = ["https", "serde_json"] }
diff --git a/crates/brk_indexer/examples/indexer_bench.rs b/crates/brk_indexer/examples/indexer_bench.rs
index 2ece78707..8ad491614 100644
--- a/crates/brk_indexer/examples/indexer_bench.rs
+++ b/crates/brk_indexer/examples/indexer_bench.rs
@@ -49,7 +49,7 @@ fn main() -> Result<()> {
     });
 
     let i = Instant::now();
-    indexer.checked_index(&blocks, &client, &exit)?;
+    indexer.index(&blocks, &client, &exit)?;
     info!("Done in {:?}", i.elapsed());
 
     // We want to benchmark the drop too
diff --git a/crates/brk_indexer/src/lib.rs b/crates/brk_indexer/src/lib.rs
index bbc39201e..58458c1d5 100644
--- a/crates/brk_indexer/src/lib.rs
+++ b/crates/brk_indexer/src/lib.rs
@@ -12,16 +12,16 @@ mod constants;
 mod indexes;
 mod processor;
 mod readers;
-mod stores_v2;
-// mod stores_v3;
+// mod stores_v2;
+mod stores_v3;
 mod vecs;
 
 use constants::*;
 pub use indexes::*;
 pub use processor::*;
 pub use readers::*;
-pub use stores_v2::*;
-// pub use stores_v3::*;
+// pub use stores_v2::*;
+pub use stores_v3::*;
 pub use vecs::*;
 
 #[derive(Clone)]
diff --git a/crates/brk_indexer/src/processor.rs b/crates/brk_indexer/src/processor.rs
index 67ce75eef..2cb604d6f 100644
--- a/crates/brk_indexer/src/processor.rs
+++ b/crates/brk_indexer/src/processor.rs
@@ -113,7 +113,7 @@ impl<'a> BlockProcessor<'a> {
 
     /// Compute TXIDs in parallel (CPU-intensive operation).
     pub fn compute_txids(&self) -> Result<Vec<ComputedTx<'a>>> {
-        let should_check_collisions =
+        let will_check_collisions =
             self.check_collisions && self.stores.txidprefix_to_txindex.needs(self.height);
         let base_txindex = self.indexes.txindex;
 
@@ -125,7 +125,7 @@ impl<'a> BlockProcessor<'a> {
                 let txid = Txid::from(tx.compute_txid());
                 let txid_prefix = TxidPrefix::from(&txid);
 
-                let prev_txindex_opt = if should_check_collisions {
+                let prev_txindex_opt = if will_check_collisions {
                     self.stores
                         .txidprefix_to_txindex
                         .get(&txid_prefix)?
diff --git a/crates/brk_indexer/src/stores_v3.rs b/crates/brk_indexer/src/stores_v3.rs
index 05b244c87..d9f8869de 100644
--- a/crates/brk_indexer/src/stores_v3.rs
+++ b/crates/brk_indexer/src/stores_v3.rs
@@ -33,10 +33,6 @@ pub struct Stores {
     pub blockhashprefix_to_height: Store<BlockHashPrefix, Height>,
     pub height_to_coinbase_tag: Store<Height, StoredString>,
     pub txidprefix_to_txindex: Store<TxidPrefix, TxIndex>,
-    // pub addresstype_to_addressindex_and_txindex: Store<AddressTypeAddressIndexTxIndex, Unit>,
-    // pub addresshash_to_typeindex: Store<AddressHash, TypeIndex>,
-    // pub addresstype_to_addressindex_and_unspentoutpoint:
-    // Store<AddressTypeAddressIndexOutPoint, Unit>,
 }
 
 impl Stores {
@@ -64,6 +60,7 @@ impl Stores {
                 version,
                 Mode3::PushOnly,
                 Kind3::Random,
+                10,
             )
         };
 
@@ -75,6 +72,7 @@ impl Stores {
                 version,
                 Mode3::PushOnly,
                 Kind3::Vec,
+                0,
             )
         };
 
@@ -86,6 +84,7 @@ impl Stores {
                 version,
                 Mode3::Any,
                 Kind3::Vec,
+                0,
             )
         };
 
@@ -99,6 +98,7 @@ impl Stores {
                 version,
                 Mode3::PushOnly,
                 Kind3::Sequential,
+                0,
             )?,
             addresstype_to_addresshash_to_addressindex: ByAddressType::new_with_index(
                 create_addresshash_to_addressindex_store,
@@ -116,6 +116,7 @@ impl Stores {
                 version,
                 Mode3::PushOnly,
                 Kind3::Random,
+                0,
             )?,
             txidprefix_to_txindex: Store::import(
                 database_ref,
@@ -124,6 +125,7 @@ impl Stores {
                 version,
                 Mode3::PushOnly,
                 Kind3::Random,
+                10,
             )?,
         })
     }
diff --git a/crates/brk_store/src/fjall_v3/mod.rs b/crates/brk_store/src/fjall_v3/mod.rs
index 4f9d5b260..4b8f57d23 100644
--- a/crates/brk_store/src/fjall_v3/mod.rs
+++ b/crates/brk_store/src/fjall_v3/mod.rs
@@ -22,6 +22,7 @@ pub struct StoreFjallV3<Key, Value> {
     keyspace: Keyspace,
     puts: FxHashMap<Key, Value>,
     dels: FxHashSet<Key>,
+    prev_puts: Vec<FxHashMap<Key, Value>>,
 }
 
 const MAJOR_FJALL_VERSION: Version = Version::new(3);
@@ -47,6 +48,7 @@ where
         version: Version,
         mode: Mode3,
         kind: Kind3,
+        cached_commits: usize,
     ) -> Result<Self> {
         fs::create_dir_all(path)?;
 
@@ -62,12 +64,18 @@ where
             },
         )?;
 
+        let mut prev_puts = vec![];
+        for _ in 0..cached_commits {
+            prev_puts.push(FxHashMap::default());
+        }
+
         Ok(Self {
             meta,
             name: Box::leak(Box::new(name.to_string())),
             keyspace,
             puts: FxHashMap::default(),
             dels: FxHashSet::default(),
+            prev_puts,
         })
     }
 
@@ -107,8 +115,16 @@ where
         ByteView: From<&'a K>,
     {
         if let Some(v) = self.puts.get(key) {
-            Ok(Some(Cow::Borrowed(v)))
-        } else if let Some(slice) = self.keyspace.get(ByteView::from(key))? {
+            return Ok(Some(Cow::Borrowed(v)));
+        }
+
+        for prev in &self.prev_puts {
+            if let Some(v) = prev.get(key) {
+                return Ok(Some(Cow::Borrowed(v)));
+            }
+        }
+
+        if let Some(slice) = self.keyspace.get(ByteView::from(key))? {
             Ok(Some(Cow::Owned(V::from(ByteView::from(slice)))))
         } else {
             Ok(None)
@@ -220,7 +236,14 @@ where
     fn commit_f3(&mut self, height: Height) -> Result<()> {
         self.export_meta_if_needed(height)?;
 
-        let mut items = mem::take(&mut self.puts)
+        let puts = mem::take(&mut self.puts);
+
+        if !self.prev_puts.is_empty() {
+            self.prev_puts.pop();
+            self.prev_puts.insert(0, puts.clone());
+        }
+
+        let mut items = puts
             .into_iter()
             .map(|(key, value)| Item::Value { key, value })
             .chain(