diff --git a/Cargo.lock b/Cargo.lock
index df0ea2bf..52e525af 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1283,7 +1283,7 @@ dependencies = [
 
 [[package]]
 name = "librqbit"
-version = "5.6.4"
+version = "6.0.0-beta.0"
 dependencies = [
  "anyhow",
  "async-stream",
@@ -2106,7 +2106,7 @@ dependencies = [
 
 [[package]]
 name = "rqbit"
-version = "5.6.4"
+version = "6.0.0-beta.0"
 dependencies = [
  "anyhow",
  "bytes",
diff --git a/crates/librqbit/Cargo.toml b/crates/librqbit/Cargo.toml
index 6026a555..531a5609 100644
--- a/crates/librqbit/Cargo.toml
+++ b/crates/librqbit/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "librqbit"
-version = "5.6.4"
+version = "6.0.0-beta.0"
 authors = ["Igor Katson <igor.katson@gmail.com>"]
 edition = "2021"
 description = "The main library used by rqbit torrent client. The binary is just a small wrapper on top of it."
diff --git a/crates/rqbit/Cargo.toml b/crates/rqbit/Cargo.toml
index a70604bb..89f75b98 100644
--- a/crates/rqbit/Cargo.toml
+++ b/crates/rqbit/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rqbit"
-version = "5.6.4"
+version = "6.0.0-beta.0"
 authors = ["Igor Katson <igor.katson@gmail.com>"]
 edition = "2021"
 description = "A bittorrent command line client and server."
@@ -22,7 +22,7 @@ rust-tls = ["librqbit/rust-tls"]
 debug_slow_disk = ["librqbit/storage_middleware"]
 
 [dependencies]
-librqbit = { path = "../librqbit", default-features = false, version = "5.6.4" }
+librqbit = { path = "../librqbit", default-features = false, version = "6.0.0-beta.0" }
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }
 console-subscriber = { version = "0.2", optional = true }
 anyhow = "1"
diff --git a/desktop/src-tauri/Cargo.lock b/desktop/src-tauri/Cargo.lock
index 217bc74e..c050ff45 100644
--- a/desktop/src-tauri/Cargo.lock
+++ b/desktop/src-tauri/Cargo.lock
@@ -1815,7 +1815,7 @@ dependencies = [
 
 [[package]]
 name = "librqbit"
-version = "5.6.4"
+version = "6.0.0-beta.0"
 dependencies = [
  "anyhow",
  "async-stream",
@@ -1840,6 +1840,7 @@ dependencies = [
  "librqbit-sha1-wrapper",
  "librqbit-tracker-comms",
  "librqbit-upnp",
+ "memmap2",
  "parking_lot",
  "rand 0.8.5",
  "regex",
@@ -2086,6 +2087,15 @@ version = "2.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
 
+[[package]]
+name = "memmap2"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe751422e4a8caa417e13c3ea66452215d7d63e19e604f4980461212f3ae1322"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.9.1"
@@ -2964,7 +2974,7 @@ dependencies = [
 
 [[package]]
 name = "rqbit-desktop"
-version = "5.6.4"
+version = "6.0.0"
 dependencies = [
  "anyhow",
  "base64 0.21.7",
diff --git a/desktop/src-tauri/Cargo.toml b/desktop/src-tauri/Cargo.toml
index 757c1e7e..bbfbfbd2 100644
--- a/desktop/src-tauri/Cargo.toml
+++ b/desktop/src-tauri/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rqbit-desktop"
-version = "5.6.4"
+version = "6.0.0"
 description = "rqbit torrent client"
 authors = ["you"]
 license = ""